{"id":121171,"date":"2026-11-02T05:09:16","date_gmt":"2026-11-01T21:09:16","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/121171.html"},"modified":"2026-11-02T05:09:16","modified_gmt":"2026-11-01T21:09:16","slug":"%e4%bb%8e%e5%8e%9f%e7%90%86%e5%88%b0%e5%ae%9e%e6%88%98%ef%bc%9adns-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%8c%e5%85%a8%e6%8c%87%e5%8d%97%ef%bc%88bind-unbound-dnsmasq-%e9%85%8d%e7%bd%ae%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/121171.html","title":{"rendered":"\u4ece\u539f\u7406\u5230\u5b9e\u6218\uff1aDNS \u670d\u52a1\u5668\u5b8c\u5168\u6307\u5357\uff08BIND\/Unbound\/Dnsmasq \u914d\u7f6e\u8be6\u89e3\uff09"},"content":{"rendered":"<p>        \/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/<br \/>\n        #content_views .toc,<br \/>\n        \/* 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   #content_views.markdown_views &gt; .toc + h4,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h1,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h2,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h3,<br \/>\n        #content_views.markdown_views &gt; .toc + p:empty + h4 {<br \/>\n          margin-top: 0 !important;<br \/>\n        }<\/p>\n<h2>DNS\u670d\u52a1\u5668<\/h2>\n<h4>DNS\u7684\u8bde\u751f<\/h4>\n<p>\u5f53\u6211\u4eec\u5728\u6d4f\u89c8\u5668\u4e2d\u8f93\u5165\u4e00\u4e2a\u57df\u540d\u8bbf\u95ee\u67d0\u4e2a\u7f51\u7ad9\u65f6&#xff0c;\u8fd9\u4e2a\u57df\u540d\u6700\u7ec8\u4f1a\u88ab\u89e3\u6790\u4e3a\u4e00\u4e2aIP\u5730\u5740&#xff0c;\u6211\u4eec\u7684\u6d4f\u89c8\u5668\u5b9e\u9645\u662f\u5728\u548c\u8fd9\u4e2aIP\u5730\u5740\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<p>\u8d1f\u8d23\u5c06\u57df\u540d\u89e3\u6790\u5230IP\u5730\u5740\u7684\u534f\u8bae\u4e3aDNS&#xff08;Domain Name 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information center&#xff09;\u7ef4\u62a4&#xff0c;\u6539\u52a8\u81ea\u5df1\u4e3b\u673a\u540d\u7684\u4f7f\u7528\u8005\u901a\u8fc7\u7535\u5b50\u90ae\u4ef6\u5c06\u81ea\u8eab\u6539\u52a8\u53d1\u9001\u7ed9NIC&#xff0c;NIC\u5b9a\u671f\u66f4\u65b0HOSTS.txt&#xff0c;\u8fd9\u4e00\u5207\u5728\u4e3b\u673a\u6570\u76ee\u5f88\u5c11\u65f6\u90fd\u6ca1\u6709\u4ec0\u4e48\u95ee\u9898\u3002\u4f46\u5f53ARPAnet\u4f7f\u7528TCP\/IP\u534f\u8bae\u4e4b\u540e&#xff0c;\u7f51\u7edc\u7528\u6237\u6570\u91cf\u51fa\u73b0\u4e86\u6fc0\u589e&#xff0c;\u624b\u52a8\u7ef4\u62a4HOSTS.txt\u4f3c\u4e4e\u53d8\u5f97\u56f0\u96be\u8d77\u6765&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u540d\u79f0\u51b2\u7a81&#xff1a;NIC\u867d\u7136\u53ef\u4ee5\u4fdd\u8bc1\u7ba1\u7406\u7684\u4e3b\u673a\u540d\u79f0\u4e00\u81f4\u6027&#xff0c;\u4f46\u5f88\u96be\u4fdd\u8bc1\u4e3b\u673a\u4e0d\u4f1a\u968f\u673a\u4fee\u6539\u540d\u79f0\u548c\u522b\u4eba\u6b63\u5728\u4f7f\u7528\u7684\u4e00\u81f4\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e00\u81f4\u6027&#xff1a;\u968f\u7740\u7f51\u7edc\u89c4\u6a21\u6269\u5927&#xff0c;\u7528\u6237\u7684HOSTS.txt\u5f88\u96be\u4fdd\u6301\u4e00\u81f4\u6027&#xff0c;\u5f88\u53ef\u80fd\u4e3b\u673a\u7684HOSTS.txt\u6587\u4ef6\u8fd8\u672a\u66f4\u65b0&#xff0c;\u5176\u4f59\u4e3b\u673a\u7684\u540d\u79f0\u5df2\u7ecf\u53d8\u52a8\u4e86\u6570\u6b21\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e8e\u662f\u63a5\u66ff\u8005DNS\u7531\u6b64\u8bde\u751f\u3002<\/p>\n<p><img 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Server&#xff09;&#xff1a;\u8d1f\u8d23\u7ef4\u62a4\u57df\u540d\u4e0eIP\u5730\u5740\u5bf9\u5e94\u5173\u7cfb\u7684\u6570\u636e\u5e93&#xff0c;\u5e76\u5bf9\u89e3\u6790\u8005\u7684\u8bf7\u6c42\u8fdb\u884c\u54cd\u5e94\u3002<\/p>\n<p>\u57df\u540d\u7cfb\u7edf\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u7684\u7ed3\u6784&#xff0c;\u6bcf\u4e2a\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e\u5e93\u53ea\u4fdd\u5b58\u4e86\u90e8\u5206\u57df\u540d\u4e0eIP\u7684\u5bf9\u5e94\u5173\u7cfb\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa792193f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>\u57df\u540d\u7684\u6807\u8bc6\u65b9\u6cd5<\/h4>\n<p>\u5b66\u4e60DNS\u5c42\u6b21\u7ed3\u6784\u524d&#xff0c;\u9996\u5148\u8981\u641e\u6e05\u695aDNS\u5c42\u6b21\u7ed3\u6784\u4e2d\u4e00\u4e9b\u672f\u8bed&#xff0c;\u4f8b\u5982domain&#xff0c;subdomain\u548czone\u7b49\u3002<\/p>\n<p>Domain<\/p>\n<p>domain \u662f resource records \u7684\u96c6\u5408&#xff0c;\u8be5\u96c6\u5408\u4ee5\u901a\u7528\u540d\u7ed3\u5c3e&#xff0c;\u8868\u793a DNS \u547d\u540d\u7a7a\u95f4\u7684\u6574\u4e2a\u2f26\u6811&#xff0c;\u5982xiaomi.com\u3002<\/p>\n<p>top-level domain&#xff08;TLD- \u9876\u7ea7\u57df&#xff09;\u7531 Internet Assigned Numbers Authority&#xff08;IANA-\u4e92\u8054\u7f51\u53f7\u7801\u5206\u914d\u673a\u6784&#xff09;\u7ba1\u7406&#xff0c;\u5e76\u8d1f\u8d23\u59d4\u6d3e\u9876\u7ea7\u57df\u3002<\/p>\n<p>\u5e38\u89c1\u7684TLD\u7c7b\u578b&#xff1a;<\/p>\n<ul>\n<li>\n<p>Generic TLDs&#xff08;gTLD-\u901a\u7528\u9876\u7ea7\u57df\u540d&#xff09;&#xff0c;\u6700\u521d\u662f\u6309\u4e3b\u9898\u7ec4\u7ec7\u7684&#xff0c;\u5305\u62ec.com&#xff0c;.edu\u548c.net\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>Country code TLDs&#xff08;ccTLD-\u56fd\u5bb6\u4ee3\u7801\u9876\u7ea7\u57df\u540d&#xff09;&#xff0c;\u6839\u636eISO 3166-1\u6807\u51c6\u5728\u56fd\u5bb6\u8303\u56f4\u4e0a\u7ec4\u7ec7\u7684&#xff0c;\u5e76\u5305\u62ec.us&#xff0c;.uk&#xff0c;.cn\u548c.ru\u4e4b\u7c7b\u7684\u57df\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5176\u4ed6\u9876\u7ea7\u57df\u53c2\u8003\u9876\u7ea7\u57df\u540d\u53c2\u8003[\u6839\u57df\u6570\u636e\u5e93][https:\/\/www.iana.org\/domains\/root\/db]\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa793ca42.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\u57df\u540d\u7684\u8868\u793a\u65b9\u6cd5\u4e3a&#xff1a;\u4e3b\u673a\u540d.\u6b21\u9876\u7ea7\u57df\u540d.\u9876\u7ea7\u57df\u540d.\u6839\u57df&#xff0c;\u6839\u57df\u4e3a\u201c.\u201d&#xff0c;\u4e00\u822c\u6700\u540e\u7684\u6839\u57df\u4e0d\u8868\u793a\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa7966d0b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" 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decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa7985f2c.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u8fed\u4ee3\u67e5\u8be2\u4e0d\u540c\u4e8e\u9012\u5f52\u67e5\u8be2&#xff0c;DNS\u670d\u52a1\u56681\u8fd4\u56de\u7684DNS\u54cd\u5e94\u91cc\u7684\u5185\u5bb9\u662f\u53e6\u5916\u4e00\u4e2aDNS\u670d\u52a1\u5668\u5730\u5740\u3002<\/p>\n<p>\u4e3b\u673a\u7684 DNS \u67e5\u8be2\u4e3b\u8981\u6709\u4e24\u79cd\u65b9\u5f0f&#xff1a;\u9012\u5f52\u67e5\u8be2\u548c\u8fed\u4ee3\u67e5\u8be2\u3002<\/p>\n<p>DNS \u67e5\u8be2\u65f6&#xff0c;DNS \u8bf7\u6c42\u62a5\u5934\u90e8 \u7684 RD \u5b57\u6bb5 \u51b3\u5b9a\u4e86\u67e5\u8be2\u7c7b\u578b&#xff1a;<\/p>\n<ul>\n<li>\n<p>RD \u4e3a 1 &#061;&gt; \u9012\u5f52\u67e5\u8be2&#xff0c;\u9ed8\u8ba4\u67e5\u8be2\u65b9\u5f0f\u3002<\/p>\n<\/li>\n<li>\n<p>RD \u4e3a 0 &#061;&gt; \u8fed\u4ee3\u67e5\u8be2\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e24\u8005\u4e3b\u8981\u533a\u522b&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u9012\u5f52&#xff1a;\u4e00\u95ee\u5230\u5e95&#xff0c;\u59d4\u6258\u522b\u4eba\u5168\u6743\u4ee3\u529e&#xff08;PC \u2192 DNS \u670d\u52a1\u5668&#xff09;<\/p>\n<\/li>\n<li>\n<p>\u8fed\u4ee3&#xff1a;\u5c42\u5c42\u95ee\u8def&#xff0c;\u81ea\u5df1\u4e00\u7ad9\u4e00\u7ad9\u6328\u4e2a\u53bb\u95ee&#xff08;DNS \u670d\u52a1\u5668\u5bf9\u5916\u67e5\u8be2&#xff09;<\/p>\n<\/li>\n<\/ul>\n<h5>\u9012\u5f52\u67e5\u8be2<\/h5>\n<p>\u6211\u53ea\u53d11 \u6b21\u8bf7\u6c42&#xff0c;\u5168\u6743\u4ea4\u7ed9\u5bf9\u65b9&#xff0c;\u5bf9\u65b9\u5fc5\u987b\u7ed9\u6211\u6700\u7ec8\u7b54\u6848&#xff08;IP&#xff09;\u6216\u8005\u62a5\u9519&#xff0c;\u4e0d\u80fd\u7529\u9505\u3002<\/p>\n<p>\u89d2\u8272&#xff1a;\u5ba2\u6237\u7aef \u2194 \u672c\u5730 DNS \u670d\u52a1\u5668&#xff08;\u8fd0\u8425\u5546 DNS \/ 8.8.8.8 \/ \u81ea\u5efa dnsmasq&#xff09;<\/p>\n<h5>\u8fed\u4ee3\u67e5\u8be2<\/h5>\n<p>\u6211\u5411\u670d\u52a1\u5668\u53d1\u8d77\u8bf7\u6c42&#xff0c;\u5bf9\u65b9\u67e5\u4e0d\u5230\u5b8c\u6574\u7ed3\u679c&#xff0c;\u53ea\u8fd4\u56de\u4e0b\u4e00\u7ea7\u670d\u52a1\u5668\u5730\u5740&#xff0c;\u9700\u8981\u6211\u81ea\u5df1\u7ee7\u7eed\u6328\u4e2a\u8be2\u95ee\u3002<\/p>\n<p>\u89d2\u8272&#xff1a;\u672c\u5730 DNS \u670d\u52a1\u5668 \u2194 \u6839\u57df\u540d\u670d\u52a1\u5668\u3001\u9876\u7ea7\u57df\u3001\u6743\u5a01\u670d\u52a1\u5668<\/p>\n<h5>DNS\u67e5\u8be2\u5b8c\u6574\u6d41\u7a0b\u5bf9\u6bd4<\/h5>\n<p>&#xff08;\u4ee5 www.xiaomi.com \u4e3a\u4f8b&#xff09;<\/p>\n<p>\u2705 \u6807\u51c6\u4e92\u8054\u7f51DNS\u6d41\u7a0b&#xff08;\u9012\u5f52 &#043; \u8fed\u4ee3\u7ed3\u5408&#xff0c;99.9%\u573a\u666f&#xff09;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa799e45e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<table>\n<tr>\u6b65\u9aa4\u53d1\u8d77\u65b9\u63a5\u6536\u65b9\u67e5\u8be2\u7c7b\u578b\u6838\u5fc3\u52a8\u4f5c<\/tr>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>\u5ba2\u6237\u7aef<\/td>\n<td>\u672c\u5730DNS<\/td>\n<td>\u9012\u5f52\u67e5\u8be2<\/td>\n<td>\u5ba2\u6237\u7aef&#xff1a;\u5e2e\u6211\u67e5www.xiaomi.com\u7684 IP&#xff0c;\u6211\u8981\u6700\u7ec8\u7ed3\u679c<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u672c\u5730DNS<\/td>\n<td>\u6839DNS<\/td>\n<td>\u8fed\u4ee3\u67e5\u8be2<\/td>\n<td>\u672c\u5730 DNS&#xff1a;\u4f60\u77e5\u9053www.xiaomi.com\u5417&#xff1f;\u6839&#xff1a;\u4e0d\u77e5\u9053&#xff0c;\u53bb\u95ee.com \u9876\u7ea7\u670d\u52a1\u5668<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>\u672c\u5730DNS<\/td>\n<td>.com\u9876\u7ea7DNS<\/td>\n<td>\u8fed\u4ee3\u67e5\u8be2<\/td>\n<td>\u672c\u5730 DNS&#xff1a;\u4f60\u77e5\u9053www.xiaomi.com\u5417&#xff1f;\u9876\u7ea7&#xff1a;\u4e0d\u77e5\u9053&#xff0c;\u53bb\u95eexiaomi.com\u6743\u5a01\u670d\u52a1\u5668<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u672c\u5730DNS<\/td>\n<td>xiaomi.com\u6743\u5a01DNS<\/td>\n<td>\u8fed\u4ee3\u67e5\u8be2<\/td>\n<td>\u672c\u5730 DNS&#xff1a;\u4f60\u77e5\u9053www.xiaomi.com\u5417&#xff1f;\u6743\u5a01&#xff1a;\u8fd4\u56de\u6700\u7ec8 IP<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>\u672c\u5730DNS<\/td>\n<td>\u5ba2\u6237\u7aef<\/td>\n<td>\u54cd\u5e94<\/td>\n<td>\u628a\u6700\u7ec8 IP \u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u540c\u65f6\u7f13\u5b58\u8be5\u8bb0\u5f55<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>DNS\u8d44\u6e90\u8bb0\u5f55<\/h4>\n<p>DNS\u8d44\u6e90\u8bb0\u5f55&#xff08;Resource Record&#xff0c;RR&#xff09;\u662fDNS\u670d\u52a1\u5668\u4e2d\u5b58\u50a8\u57df\u540d\u4e0e\u5bf9\u5e94\u4fe1\u606f\u7684\u6838\u5fc3\u6570\u636e\u7ed3\u6784&#xff0c;\u6bcf\u4e00\u6761\u8bb0\u5f55\u90fd\u5bf9\u5e94\u4e00\u4e2a\u57df\u540d\u7684\u7279\u5b9a\u5c5e\u6027\u3002<\/p>\n<p>\u901a\u7528\u6a21\u677f&#xff08;\u6240\u6709DNS\u8bb0\u5f55\u90fd\u957f\u8fd9\u6837&#xff09;<\/p>\n<p><span class=\"token comment\">#\u57df\u540d TTL \u7c7b\u522b \u8bb0\u5f55\u7c7b\u578b \u5185\u5bb9<\/span><br \/>\nowner-name  TTL class <span class=\"token builtin class-name\">type<\/span>  data<br \/>\nserver.zyy.  <span class=\"token number\">300<\/span> IN     A   <span class=\"token number\">192.168<\/span>.1.10<\/p>\n<p>\u8bb0\u5f55\u8bf4\u660e&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa79b75ad.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>A \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>A \u8d44\u6e90\u8bb0\u5f55\u5c06\u4e3b\u673a\u540d\u6620\u5c04\u5230IPv4\u5730\u5740\u3002<\/p>\n<p>server.zyy. <span class=\"token number\">86400<\/span> IN A <span class=\"token number\">172.25<\/span>.254.254<\/p>\n<h5>AAAA \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>AAAA\u8d44\u6e90\u8bb0\u5f55&#xff08;4A\u8bb0\u5f55&#xff09;\u5c06\u4e3b\u673a\u540d\u6620\u5c04\u5230IPv6\u5730\u5740\u3002<\/p>\n<p>a.root-servers.net. <span class=\"token number\">604800<\/span> IN AAAA <span class=\"token number\">2001<\/span>:503:ba3e::2:30<\/p>\n<h5>CNAME \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>CNAME\u8d44\u6e90\u8bb0\u5f55\u5c06\u4e00\u4e2a\u540d\u79f0\u522b\u540d\u4e3a\u53e6\u4e00\u4e2a\u540d\u79f0&#xff08;\u89c4\u8303\u540d\u79f0&#xff09;&#xff0c;\u8be5\u540d\u79f0\u5e94\u5177\u6709A\u6216AAAA\u8bb0\u5f55\u3002<\/p>\n<p>\u5f53DNS\u89e3\u6790\u7a0b\u5e8f\u6536\u5230\u5bf9\u67e5\u8be2\u7684CNAME\u8bb0\u5f55\u65f6&#xff0c;\u5b83\u5c06\u4f7f\u7528\u89c4\u8303\u540d\u79f0\u800c\u4e0d\u662f\u539f\u59cb\u540d\u79f0\u91cd\u65b0\u53d1\u51fa\u67e5\u8be2\u3002<\/p>\n<p>CNAME\u8bb0\u5f55\u7684\u6570\u636e\u5b57\u6bb5\u53ef\u4ee5\u6307\u5411DNS\u4e2d\u4efb\u4f55\u533a\u57df\u7684\u540d\u79f0&#xff0c;\u65e0\u8bba\u8be5\u533a\u57df\u662f\u5185\u90e8\u7684\u8fd8\u662f\u5916\u90e8\u7684&#xff1a;<\/p>\n<p>www-dev.zyy. <span class=\"token number\">30<\/span> IN CNAME lab.zyy.<br \/>\nserver.zyy. <span class=\"token number\">30<\/span> IN CNAME www.zyy.<br \/>\n&#xff08;\u522b\u540d&#xff09;    &#xff08;\u771f\u5b9e\u4e3b\u673a\u540d&#xff09;<\/p>\n<ul>\n<li>\n<p>CNAME\u8bb0\u5f55\u53ef\u80fd\u6307\u5411\u5177\u6709CNAME\u7684\u540d\u79f0&#xff0c;\u4f46CNAME\u8bb0\u5f55\u94fe\u6700\u7ec8\u5fc5\u987b\u89e3\u6790\u4e3aA\u6216AAAA\u8bb0\u5f55\u7684\u540d\u79f0\u3002<\/p>\n<\/li>\n<li>\n<p>\u901a\u5e38&#xff0c;\u907f\u514d\u5c06CNAME\u8bb0\u5f55\u6307\u5411\u5176\u4ed6CNAME\u8bb0\u5f55\u3002 CNAME\u4f1a\u4f7f\u67e5\u627e\u6548\u7387\u964d\u4f4e&#xff0c;\u66f4\u8106\u5f31&#xff0c;\u5e76\u4e14\u6211\u4eec<\/p>\n<\/li>\n<\/ul>\n<p>\u53ef\u80fd\u4f1a\u610f\u5916\u5730\u521b\u5efa\u4e00\u4e2a\u6307\u5411\u5f7c\u6b64\u7684CNAME\u8bb0\u5f55\u5faa\u73af\u3002<\/p>\n<ul>\n<li>CNAME\u8bb0\u5f55\u94fe\u6709\u5408\u6cd5\u7528\u9014\u3002 \u4f8b\u5982&#xff0c;\u5b83\u4eec\u4e0eContent Delivery Network&#xff08;CDN&#xff09;\u7ed3\u5408\u4f7f\u7528\u3002 NS\u548c<\/li>\n<\/ul>\n<p>MX\u8bb0\u5f55\u4e0d\u5f97\u6307\u5411\u5e26\u6709CNAME\u8bb0\u5f55\u7684\u540d\u79f0&#xff0c;\u800c\u662f\u4f7f\u7528\u5e26\u6709A\u548c\/\u6216AAAA\u8d44\u6e90\u8bb0\u5f55\u7684\u540d\u79f0\u3002<\/p>\n<h5>PTR \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>PTR\u6216pointer\u8d44\u6e90\u8bb0\u5f55\u5c06IPv4\u6216IPv6\u5730\u5740\u6620\u5c04\u5230\u4e3b\u673a\u540d\u3002 \u5b83\u4eec\u7528\u4e8e\u53cd\u5411DNS\u89e3\u6790\u3002<\/p>\n<p>PTR\u8bb0\u5f55\u4ee5\u4e00\u79cd\u7c7b\u4f3c\u4e8e\u4e3b\u673a\u540d\u7684\u7279\u6b8a\u683c\u5f0f\u5bf9IP\u5730\u5740\u8fdb\u884c\u7f16\u7801\u3002<\/p>\n<ul>\n<li>\n<p>\u5bf9\u4e8eIPv4\u5730\u5740&#xff0c;\u8be5\u5730\u5740\u88ab\u98a0\u5012&#xff0c;\u4ee5\u6700\u5177\u4f53\u7684\u90e8\u5206\u5f00\u59cb&#xff0c;\u7136\u540e\u89c6\u4e3ain-addr.arpa\u57df\u7684\u5b50\u57df\u4e2d\u7684\u4e3b\u673a\u3002<\/p>\n<\/li>\n<li>\n<p>\u5bf9\u4e8eIPv6\u5730\u5740&#xff0c;\u8be5\u5730\u5740\u5728\u534a\u5b57\u8282\u8fb9\u754c&#xff08;\u6bcf\u4e2a\u5341\u516d\u8fdb\u5236\u6570\u5b57&#xff09;\u4e0a\u5212\u5206\u4e3a\u5b50\u57df&#xff0c;\u5e76\u8bbe\u7f6e\u4e3aip6.arpa\u57df\u7684\u5b50\u57df\u3002<\/p>\n<\/li>\n<\/ul>\n<p><span class=\"token number\">4.0<\/span>.41.198.in-addr.arpa. <span class=\"token number\">785<\/span> IN PTR a.root-servers.net.<br \/>\n<span class=\"token number\">0.3<\/span>.0.0.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.e.3.a.b.3.0.5.0.1.0.0.2.ip6.arpa. <span class=\"token number\">86400<\/span> IN PTR a.root-servers.net.<\/p>\n<p>\u8be5\u8bed\u6cd5\u53ef\u80fd\u770b\u8d77\u6765\u5f88\u5947\u602a&#xff0c;\u4f46\u662f\u5b83\u7b80\u5316\u4e86\u5c06\u5730\u5740\u8303\u56f4\u7684\u8d23\u4efb\u59d4\u6258\u7ed9\u5176\u4ed6DNS\u7ba1\u7406\u5458\u7684\u60c5\u51b5<\/p>\n<h5>NS \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>NS\u6216\u540d\u79f0\u670d\u52a1\u5668\u8d44\u6e90\u8bb0\u5f55\u5c06\u57df\u540d\u6620\u5c04\u5230\u5bf9\u5176DNS\u533a\u57df\u5177\u6709\u6743\u5a01\u6027\u7684DNS\u540d\u79f0\u670d\u52a1\u5668\u3002 \u8be5\u533a\u57df\u7684\u6bcf\u4e2a\u516c\u5171\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u90fd\u5fc5\u987b\u5177\u6709NS\u8bb0\u5f55\u3002<\/p>\n<p>\u3010\u533a\u57df\u540d\u3011 TTL IN NS \u3010\u6743\u5a01\u670d\u52a1\u5668FQDN.\u3011<br \/>\nzyy. <span class=\"token number\">86400<\/span> IN NS dns.zyy.<br \/>\n\u533a\u57df&#xff08;zone&#xff09;\u540d\u5b57 \u8be5\u533a\u57df\u7531\u54ea\u53f0 DNS \u670d\u52a1\u5668\u8d1f\u8d23\u6743\u5a01\u89e3\u7b54<br \/>\n<span class=\"token number\">168.192<\/span>.ip-addr.arpa. <span class=\"token number\">86400<\/span> IN NS dns.zyy.<br \/>\n<span class=\"token number\">9.0<\/span>.e.1.4.8.4.6.2.e.d.f.ip6.arpa.   <span class=\"token number\">86400<\/span> IN NS dns.zyy.<\/p>\n<p>\u8bf4\u660e&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5176\u4e2d\u4e24\u4e2aNS\u8bb0\u5f55\u7528\u4e8e192.168.0.0\/16\u7f51\u7edc\u548cfde2:6484:1e09::\/48\u7f51\u7edc\u7684\u53cd\u5411\u67e5\u627e\u3002<\/p>\n<\/li>\n<li>\n<p>classroom.zyy\u4e0a\u7684\u533a\u57df\u53ef\u80fd\u5305\u542bNS\u8bb0\u5f55&#xff0c;\u4ee5\u5c06\u5bf9192.168.254.0\/24\u548cfde2:6484:1e09::1:: \/64\u7684\u53cd\u5411\u67e5\u627e\u59d4\u6258\u7ed9\u53e6\u4e00\u4e2a\u540d\u79f0\u670d\u52a1\u5668\u3002<\/p>\n<\/li>\n<li>\n<p>NS\u8bb0\u5f55\u6620\u5c04\u7684\u540d\u79f0\u5fc5\u987b\u6709A\u62164A\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<\/ul>\n<h5>SOA \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>SOA\u8d44\u6e90\u8bb0\u5f55&#xff0c;\u4e5f\u53eb\u505a\u8d77\u59cb\u6388\u6743\u673a\u6784\u8bb0\u5f55&#xff0c;\u63d0\u4f9b\u6709\u5173DNS\u533a\u57df\u5982\u4f55\u8fd0\u884c\u7684\u4fe1\u606f\u3002 \u6bcf\u4e2a\u533a\u57df\u5fc5\u987b\u6709\u4e00\u4e2a<\/p>\n<p>SOA\u8bb0\u5f55\u3002<\/p>\n<ul>\n<li>\n<p>\u6307\u5b9a\u4e86\u4e00\u4e2a\u5e8f\u5217\u53f7<\/p>\n<\/li>\n<li>\n<p>\u6307\u5b9a\u5176\u4ed6\u6743\u5a01\u6027\u540d\u79f0\u670d\u52a1\u5668\u7528\u6765\u786e\u5b9a\u4f55\u65f6\u4ece\u4e3b\u8981\u540d\u79f0\u670d\u52a1\u5668\u4f20\u8f93\u533a\u57df\u8d44\u6e90\u8bb0\u5f55\u7684\u5404\u79cd\u8d85\u65f6\u65f6\u95f4\u3002<\/p>\n<\/li>\n<\/ul>\n<p>zyy. <span class=\"token number\">86400<\/span> IN SOA dns.zyy. root.zyy. <span class=\"token number\">2015071700<\/span> <span class=\"token number\">3600<\/span> <span class=\"token number\">300<\/span> <span class=\"token number\">604800<\/span> <span class=\"token number\">60<\/span><\/p>\n<p>\u8bb0\u5f55\u503c\u8bf4\u660e&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa79cfe50.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>MX \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>MX\u8d44\u6e90\u8bb0\u5f55\u5c06\u57df\u540d\u6620\u5c04\u5230\u63a5\u53d7\u8be5\u57df\u7684\u7535\u5b50\u90ae\u4ef6\u7684\u90ae\u4ef6\u4ea4\u6362&#xff08;mail exchange&#xff09;\u3002\u90ae\u4ef6\u670d\u52a1\u5668\u6545\u969c\u65f6&#xff0c;\u63d0\u4f9b\u8d1f\u8f7d\u5e73\u8861\u548c\u5197\u4f59\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u5e2e\u52a9\u8def\u7531\u7535\u5b50\u90ae\u4ef6\u3002<\/p>\n<p>\u8be5\u8bb0\u5f55\u7c7b\u578b\u7684\u6570\u636e\u662f\u7528\u4e8e\u786e\u5b9a\u5728\u591a\u4e2aMX\u8bb0\u5f55\u4e4b\u95f4\u9009\u62e9\u7684\u4f18\u5148\u7ea7&#xff08;\u9996\u9009\u6700\u4f4e&#xff09;&#xff0c;\u4ee5\u53ca\u7528\u4e8e\u8be5\u540d\u79f0\u7684\u90ae\u4ef6\u4ea4\u6362\u7684\u4e3b\u673a\u540d\u3002<\/p>\n<p>zyy. <span class=\"token number\">86400<\/span> IN MX <span class=\"token number\">20<\/span> dns.zyy. <span class=\"token comment\">#20\u662f\u4f18\u5148\u7ea7<\/span><br \/>\nzyy. <span class=\"token number\">86400<\/span> IN MX <span class=\"token number\">10<\/span> mail.zyy.<br \/>\nzyy. <span class=\"token number\">86400<\/span> IN MX <span class=\"token number\">100<\/span> mailbackup.zyy.<\/p>\n<h5>TXT \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>TXT \u8d44\u6e90\u8bb0\u5f55\u5c06\u540d\u79f0\u6620\u5c04\u5230\u7f16\u7801\u4e3a\u53ef\u6253\u5370ASCII\u5b57\u7b26\u7684\u4efb\u610f\u6587\u672c\u3002 \u5b83\u4eec\u901a\u5e38\u7528\u4e8e\u63d0\u4f9b\u7528\u4e8e\u5404\u79cd\u7535\u5b50\u90ae\u4ef6\u8eab\u4efd\u9a8c\u8bc1\u65b9\u6848&#xff08;\u4f8b\u5982SPF&#xff0c;DKIM\u548cDMARC&#xff09;\u7684\u6570\u636e&#xff0c;\u4ee5\u9a8c\u8bc1\u57df\u6240\u6709\u6743&#xff08;\u4f8b\u5982&#xff0c;\u7528\u4e8eGoogle\u548cFacebook&#xff09;&#xff0c;\u4ee5\u53ca\u7528\u4e8e\u5176\u4ed6\u76ee\u7684\u3002<\/p>\n<p>lwn.net.  <span class=\"token number\">27272<\/span>  IN  TXT <span class=\"token string\">&#034;google-site-verification: sVlx-S_z1es5DfNSUNXrqr3n9Y4F7tOr7HNVMKUGs&#034;<\/span><br \/>\nlwn.net.  <span class=\"token number\">27272<\/span>  IN  TXT<span class=\"token string\">&#034;v&#061;spf1 a:mail.lwn.net a:prod.lwn.net<br \/>\na:git.lwn.neta:ms.lwn.net -all&#034;<\/span><\/p>\n<h5>SRV \u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>SRV \u8d44\u6e90\u8bb0\u5f55\u53ef\u5e2e\u52a9\u5ba2\u6237\u7aef\u627e\u5230\u57df\u4e2d\u652f\u6301\u7279\u5b9a\u670d\u52a1\u7684\u4e3b\u673a\u3002<\/p>\n<p>\u793a\u4f8b&#xff1a;\u8868\u660e\u5b58\u5728\u4e00\u4e2a\u53ef\u4ee5\u4f7f\u7528TCP\u4f20\u8f93\u534f\u8bae&#xff08; _tcp &#xff09;\u4e0eLDAP\u8fde\u63a5\u7684LDAP\u670d\u52a1\u5668&#xff08; _ldap &#xff09;&#xff0c;\u8be5\u4e3b\u673a\u5c5e\u4e8e\u57dflaogao.cloud\u3002 LDAP\u670d\u52a1\u5668\u662fserver.laogao.cloud&#xff0c;\u6b63\u5728\u4fa6\u542c\u7aef\u53e3389&#xff0c;\u4f18\u5148\u7ea7\u4e3a0&#xff0c;\u6743\u91cd\u4e3a100&#xff08;\u5982\u679c\u5ba2\u6237\u7aef\u63a5\u6536\u5230\u591a\u4e2aSRV\u8bb0\u5f55&#xff0c;\u5219\u63a7\u5236\u9009\u62e9\u54ea\u4e2a\u670d\u52a1\u5668&#xff09;\u3002<\/p>\n<p>_ldap._tcp.zyy. <span class=\"token number\">86400<\/span> IN SRV <span class=\"token number\">0<\/span> <span class=\"token number\">100<\/span> <span class=\"token number\">389<\/span> server0.zyy.<\/p>\n<h5>\u4e3b\u673a\u548c\u8d44\u6e90\u8bb0\u5f55<\/h5>\n<p>\u2f00\u4e2a\u4e3b\u673a&#xff0c;\u65e0\u8bba\u662f\u5ba2\u6237\u7aef\u8fd8\u662f\u670d\u52a1\u5668&#xff0c;\u90fd\u5177\u6709\u4ee5\u4e0b DNS \u8d44\u6e90\u8bb0\u5f55&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u2f00\u4e2a\u6216\u591a\u4e2aA\u6216AAAA\u8bb0\u5f55<\/p>\n<\/li>\n<li>\n<p>\u7528\u4e8e\u5c06\u5176IP\u5730\u5740\u53cd\u5411\u6620\u5c04\u5230\u540d\u79f0\u7684PTR\u8bb0\u5f55<\/p>\n<\/li>\n<li>\n<p>\u2f00\u4e2a\u6216\u591a\u4e2aCNAME\u8bb0\u5f55&#xff08;\u53ef\u9009&#xff09;<\/p>\n<\/li>\n<\/ul>\n<p>DNS zone \u8fd8\u5177\u6709\u4ee5\u4e0b\u8d44\u6e90\u8bb0\u5f55&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u552f\u4e00\u7684 SOA \u8bb0\u5f55<\/p>\n<\/li>\n<li>\n<p>\u6bcf\u4e2a\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u7684 NS \u8bb0\u5f55<\/p>\n<\/li>\n<li>\n<p>\u2f00\u4e2a\u6216\u591a\u4e2aMX\u8bb0\u5f55&#xff08;\u53ef\u9009&#xff09;<\/p>\n<\/li>\n<li>\n<p>\u7528\u4e8e\u5728\u57df\u4e2d\u67e5\u627e\u670d\u52a1\u7684\u2f00\u4e2a\u6216\u591a\u4e2aSRV\u8bb0\u5f55&#xff08;\u53ef\u9009&#xff09;<\/p>\n<\/li>\n<\/ul>\n<h4>DNS\u5e38\u7528\u5ba2\u6237\u7aef\u547d\u4ee4<\/h4>\n<h5>windows\u67e5\u8be2dns\u7f13\u5b58<\/h5>\n<p>C:<span class=\"token punctuation\">\\\\<\/span>Users<span class=\"token punctuation\">\\\\<\/span><span class=\"token number\">6946<\/span><span class=\"token operator\"><span class=\"token file-descriptor important\">6<\/span>&gt;<\/span>ping www.huawei.com<\/p>\n<p>\u6b63\u5728 Ping hcdnw.cbgipv6.gslb.c.cdnhwc2.com <span class=\"token punctuation\">[<\/span><span class=\"token number\">221.229<\/span>.162.64<span class=\"token punctuation\">]<\/span> \u5177\u6709 <span class=\"token number\">32<\/span> \u5b57\u8282\u7684\u6570\u636e:<br \/>\n\u6765\u81ea <span class=\"token number\">221.229<\/span>.162.64 \u7684\u56de\u590d: \u5b57\u8282<span class=\"token operator\">&#061;<\/span><span class=\"token number\">32<\/span> \u65f6\u95f4<span class=\"token operator\">&#061;<\/span>9ms <span class=\"token assign-left variable\">TTL<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">55<\/span><br \/>\n\u6765\u81ea <span class=\"token number\">221.229<\/span>.162.64 \u7684\u56de\u590d: \u5b57\u8282<span class=\"token operator\">&#061;<\/span><span class=\"token number\">32<\/span> \u65f6\u95f4<span class=\"token operator\">&#061;<\/span>10ms <span class=\"token assign-left variable\">TTL<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">55<\/span><br \/>\n\u6765\u81ea <span class=\"token number\">221.229<\/span>.162.64 \u7684\u56de\u590d: \u5b57\u8282<span class=\"token operator\">&#061;<\/span><span class=\"token number\">32<\/span> \u65f6\u95f4<span class=\"token operator\">&#061;<\/span>10ms <span class=\"token assign-left variable\">TTL<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">55<\/span><br \/>\n\u6765\u81ea <span class=\"token number\">221.229<\/span>.162.64 \u7684\u56de\u590d: \u5b57\u8282<span class=\"token operator\">&#061;<\/span><span class=\"token number\">32<\/span> \u65f6\u95f4<span class=\"token operator\">&#061;<\/span>19ms <span class=\"token assign-left variable\">TTL<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">55<\/span><\/p>\n<p><span class=\"token number\">221.229<\/span>.162.64 \u7684 Ping \u7edf\u8ba1\u4fe1\u606f:<br \/>\n\u6570\u636e\u5305: \u5df2\u53d1\u9001 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">4<\/span>&#xff0c;\u5df2\u63a5\u6536 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">4<\/span>&#xff0c;\u4e22\u5931 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span>% \u4e22\u5931<span class=\"token punctuation\">)<\/span>&#xff0c;<br \/>\n\u5f80\u8fd4\u884c\u7a0b\u7684\u4f30\u8ba1\u65f6\u95f4<span class=\"token punctuation\">(<\/span>\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d<span class=\"token punctuation\">)<\/span>:<br \/>\n\u6700\u77ed <span class=\"token operator\">&#061;<\/span> 9ms&#xff0c;\u6700\u957f <span class=\"token operator\">&#061;<\/span> 19ms&#xff0c;\u5e73\u5747 <span class=\"token operator\">&#061;<\/span> 12ms<\/p>\n<p>C:<span class=\"token punctuation\">\\\\<\/span>Users<span class=\"token punctuation\">\\\\<\/span><span class=\"token number\">6946<\/span><span class=\"token operator\"><span class=\"token file-descriptor important\">6<\/span>&gt;<\/span>ipconfig \/displaydns <span class=\"token operator\">|<\/span> findstr huawei<br \/>\nwww.huawei.com<br \/>\n\u8bb0\u5f55\u540d\u79f0. <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">:<\/span> www.huawei.com<br \/>\nCNAME \u8bb0\u5f55 <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">:<\/span> www.huawei.com.akadns.net<br \/>\n\u8bb0\u5f55\u540d\u79f0. <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">:<\/span> www.huawei.com.akadns.net<br \/>\nCNAME \u8bb0\u5f55 <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">:<\/span> www.huawei.com.c.cdnhwc1.com<br \/>\n\u8bb0\u5f55\u540d\u79f0. <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token builtin class-name\">:<\/span> www.huawei.com.c.cdnhwc1.com<\/p>\n<p>C:<span class=\"token punctuation\">\\\\<\/span>Users<span class=\"token punctuation\">\\\\<\/span><span class=\"token number\">6946<\/span><span class=\"token operator\"><span class=\"token file-descriptor important\">6<\/span>&gt;<\/span>ipconfig \/flushdns<\/p>\n<p>Windows IP \u914d\u7f6e<\/p>\n<p>\u5df2\u6210\u529f\u5237\u65b0 DNS \u89e3\u6790\u7f13\u5b58\u3002<\/p>\n<p><span class=\"token comment\"># nslookup\u4ea4\u4e92\u5f0f<\/span><br \/>\nC:<span class=\"token punctuation\">\\\\<\/span>Users<span class=\"token punctuation\">\\\\<\/span><span class=\"token number\">6946<\/span><span class=\"token operator\"><span class=\"token file-descriptor important\">6<\/span>&gt;<\/span>nslookup<br \/>\n\u9ed8\u8ba4\u670d\u52a1\u5668: dns.google<br \/>\nAddress: <span class=\"token number\">8.8<\/span>.8.8<br \/>\n<span class=\"token operator\">&gt;<\/span> www.qq.com<br \/>\n\u670d\u52a1\u5668: dns.google<br \/>\nAddress: <span class=\"token number\">8.8<\/span>.8.8<\/p>\n<p>\u975e\u6743\u5a01\u5e94\u7b54:<br \/>\n\u540d\u79f0: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddresses: 240e:e1:a800:120::76<br \/>\n240e:e1:a800:120::36<br \/>\n<span class=\"token number\">101.91<\/span>.42.232<br \/>\n<span class=\"token number\">101.91<\/span>.22.57<br \/>\nAliases: www.qq.com<\/p>\n<p><span class=\"token comment\"># nslookup\u975e\u4ea4\u4e92\u5f0f<\/span><br \/>\nC:<span class=\"token punctuation\">\\\\<\/span>Users<span class=\"token punctuation\">\\\\<\/span><span class=\"token number\">6946<\/span><span class=\"token operator\"><span class=\"token file-descriptor important\">6<\/span>&gt;<\/span>nslookup www.360.cn<br \/>\n\u670d\u52a1\u5668: dns.google<br \/>\nAddress: <span class=\"token number\">8.8<\/span>.8.8<\/p>\n<p>\u975e\u6743\u5a01\u5e94\u7b54:<br \/>\n\u540d\u79f0: www.360.cn<br \/>\nAddresses: <span class=\"token number\">36.99<\/span>.171.154<br \/>\n<span class=\"token number\">106.63<\/span>.103.5<\/p>\n<h5>wohis\u67e5\u8be2\u57df\u540d\u4fe1\u606f<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># yum install -y whois<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># whois qq.com<\/span><\/p>\n<h5>host\u547d\u4ee4<\/h5>\n<p><span class=\"token comment\">#host&#xff1a; Linux \u4e0b\u7528\u6765\u67e5\u8be2 DNS \u89e3\u6790\u7684\u5c0f\u5de5\u5177<\/span><br \/>\n<span class=\"token comment\">#-t NS&#xff1a; \u6307\u5b9a\u67e5\u8be2\u7c7b\u578b\u4e3a NS \u8bb0\u5f55&#xff08;Name Server&#xff0c; \u57df\u540d\u670d\u52a1\u5668&#xff09;<\/span><br \/>\n<span class=\"token comment\">#huawei.com&#xff1a; \u8981\u67e5\u7684\u57df\u540d<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># host -t NS huawei.com #\u67e5\u8be2 huawei.com \u8fd9\u4e2a\u57df\u540d&#xff0c; \u7531\u54ea\u4e9b DNS<\/span><br \/>\n\u670d\u52a1\u5668\u8d1f\u8d23\u89e3\u6790<br \/>\nhuawei.com name server nsallsec.huawei.com.<br \/>\nhuawei.com name server nsall4th.huawei.cn.<br \/>\nhuawei.com name server nsall.huawei.com.<br \/>\nhuawei.com name server nsall3rd.huawei.cn.<\/p>\n<p><span class=\"token comment\">#\u67e5IP&#xff08;A\u8bb0\u5f55&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># host www.qq.com<\/span><br \/>\nwww.qq.com is an <span class=\"token builtin class-name\">alias<\/span> <span class=\"token keyword\">for<\/span> ins-r23tsuuf.ias.tencent-cloud.net.<br \/>\nins-r23tsuuf.ias.tencent-cloud.net has address <span class=\"token number\">101.91<\/span>.22.57<br \/>\nins-r23tsuuf.ias.tencent-cloud.net has address <span class=\"token number\">101.91<\/span>.42.232<br \/>\nins-r23tsuuf.ias.tencent-cloud.net has IPv6 address 240e:e1:a800:120::76<br \/>\nins-r23tsuuf.ias.tencent-cloud.net has IPv6 address 240e:e1:a800:120::36<\/p>\n<p><span class=\"token comment\">#\u67e5\u90ae\u7bb1\u670d\u52a1\u5668(MX\u8bb0\u5f55)<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># host -t MX qq.com<\/span><br \/>\nqq.com mail is handled by <span class=\"token number\">30<\/span> mx1.qq.com.<br \/>\nqq.com mail is handled by <span class=\"token number\">20<\/span> mx2.qq.com.<br \/>\nqq.com mail is handled by <span class=\"token number\">10<\/span> mx3.qq.com.<\/p>\n<h5>dig\u547d\u4ee4<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig -t A www.qq.com<\/span><br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> DiG <span class=\"token number\">9.11<\/span>.4-P2-RedHat-9.11.4-26.P2.el7 <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> <span class=\"token parameter variable\">-t<\/span> A www.qq.com<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> global options: &#043;cmd<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Got answer:<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> &#8211;<span class=\"token operator\">&gt;&gt;<\/span>HEADER<span class=\"token operator\">&lt;&lt;-<\/span> opcode: QUERY, status: NOERROR, id: <span class=\"token number\">3240<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> flags: qr rd ra<span class=\"token punctuation\">;<\/span> QUERY: <span class=\"token number\">1<\/span>, ANSWER: <span class=\"token number\">3<\/span>, AUTHORITY: <span class=\"token number\">0<\/span>, ADDITIONAL: <span class=\"token number\">1<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> OPT PSEUDOSECTION:<br \/>\n<span class=\"token punctuation\">;<\/span> EDNS: version: <span class=\"token number\">0<\/span>, flags:<span class=\"token punctuation\">;<\/span> MBZ: 0x0005, udp: <span class=\"token number\">512<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> QUESTION SECTION:<br \/>\n<span class=\"token punctuation\">;<\/span>www.qq.com. IN A<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> ANSWER SECTION:<br \/>\nwww.qq.com. <span class=\"token number\">5<\/span> IN CNAME ins-r23tsuuf.ias.tencent-cloud.net.<br \/>\nins-r23tsuuf.ias.tencent-cloud.net. <span class=\"token number\">5<\/span> IN A <span class=\"token number\">101.91<\/span>.22.57<br \/>\nins-r23tsuuf.ias.tencent-cloud.net. <span class=\"token number\">5<\/span> IN A <span class=\"token number\">101.91<\/span>.42.232<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Query time: <span class=\"token number\">519<\/span> msec<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> SERVER: <span class=\"token number\">10.1<\/span>.8.2<span class=\"token comment\">#53(10.1.8.2)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> WHEN: Wed Aug 05 <span class=\"token number\">14<\/span>:39:17 CST <span class=\"token number\">2026<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> MSG SIZE rcvd: <span class=\"token number\">119<\/span><br \/>\n<span class=\"token comment\"># \u53ea\u770b\u7cbe\u7b80\u7ed3\u679c(\u6700\u5b9e\u7528)<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#043;short www.qq.com<\/span><br \/>\nins-r23tsuuf.ias.tencent-cloud.net.<br \/>\n<span class=\"token number\">101.91<\/span>.42.232<br \/>\n<span class=\"token number\">101.91<\/span>.22.57<br \/>\n<span class=\"token comment\"># \u53ea\u770b\u56de\u7b54\u90e8\u5206<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#043;nocmd &#043;noall &#043;answer www.qq.com<\/span><br \/>\nwww.qq.com. <span class=\"token number\">5<\/span> IN CNAME ins-r23tsuuf.ias.tencent-cloud.net.<br \/>\nins-r23tsuuf.ias.tencent-cloud.net. <span class=\"token number\">5<\/span> IN A <span class=\"token number\">101.91<\/span>.22.57<br \/>\nins-r23tsuuf.ias.tencent-cloud.net. <span class=\"token number\">5<\/span> IN A <span class=\"token number\">101.91<\/span>.42.232<\/p>\n<h5>nslookup\u547d\u4ee4<\/h5>\n<p>nslookup\u53ef\u4ee5\u652f\u6301\u4ea4\u4e92\u548c\u975e\u4ea4\u4e92\u5f0f\u4e24\u79cd\u65b9\u5f0f\u6267\u884c<\/p>\n<p>\u975e\u4ea4\u4e92\u6a21\u5f0f&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u67e5www.qq.com\u5bf9\u5e94IP\u662f\u591a\u5c11<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nslookup www.qq.com<\/span><br \/>\nServer: <span class=\"token number\">10.1<\/span>.8.2<br \/>\nAddress: <span class=\"token number\">10.1<\/span>.8.2<span class=\"token comment\">#53<\/span><br \/>\nNon-authoritative answer:<br \/>\nwww.qq.com canonical name <span class=\"token operator\">&#061;<\/span> ins-r23tsuuf.ias.tencent-cloud.net.<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.22.57<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.42.232<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: 240e:e1:a800:120::36<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: 240e:e1:a800:120::76<\/p>\n<p><span class=\"token comment\"># \u8ba9114.114.114.114\u5e2e\u6211\u89e3\u6790www.qq.com<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nslookup www.qq.com 114.114.114.114<\/span><br \/>\nServer: <span class=\"token number\">114.114<\/span>.114.114<br \/>\nAddress: <span class=\"token number\">114.114<\/span>.114.114<span class=\"token comment\">#53<\/span><\/p>\n<p>Non-authoritative answer:<br \/>\nwww.qq.com canonical name <span class=\"token operator\">&#061;<\/span> ins-r23tsuuf.ias.tencent-cloud.net.<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.42.232<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.22.57<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: 240e:e1:a800:120::36<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: 240e:e1:a800:120::76<\/p>\n<p>\u4ea4\u4e92\u6a21\u5f0f&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nslookup<\/span><br \/>\n<span class=\"token operator\">&gt;<\/span> www.qq.com<br \/>\nServer: <span class=\"token number\">10.1<\/span>.8.2<br \/>\nAddress: <span class=\"token number\">10.1<\/span>.8.2<span class=\"token comment\">#53<\/span><br \/>\nNon-authoritative answer:<br \/>\nwww.qq.com canonical name <span class=\"token operator\">&#061;<\/span> ins-r23tsuuf.ias.tencent-cloud.net.<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.22.57<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.42.232<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: 240e:e1:a800:120::36<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: 240e:e1:a800:120::76<br \/>\n<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token operator\">&gt;<\/span> <span class=\"token builtin class-name\">set<\/span> <span class=\"token assign-left variable\">q<\/span><span class=\"token operator\">&#061;<\/span>a<br \/>\n<span class=\"token operator\">&gt;<\/span> www.qq.com<br \/>\nServer: <span class=\"token number\">10.1<\/span>.8.2<br \/>\nAddress: <span class=\"token number\">10.1<\/span>.8.2<span class=\"token comment\">#53<\/span><br \/>\nNon-authoritative answer:<br \/>\nwww.qq.com canonical name <span class=\"token operator\">&#061;<\/span> ins-r23tsuuf.ias.tencent-cloud.net.<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.22.57<br \/>\nName: ins-r23tsuuf.ias.tencent-cloud.net<br \/>\nAddress: <span class=\"token number\">101.91<\/span>.42.232<br \/>\n<span class=\"token operator\">&gt;<\/span><\/p>\n<h4>\u914d\u7f6e\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668<\/h4>\n<h5>\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u67b6\u6784<\/h5>\n<p>Linux\u4e2d\u7684Berkeley Internet Name Domain&#xff08;BIND&#xff09;\u8f6f\u4ef6\u53ef\u4ee5\u5b9e\u73b0\u6743\u5a01\u7684\u540d\u79f0\u670d\u52a1\u5668\u3002 BIND\u5141\u8bb8\u6211\u4eec\u5c06\u6743\u5a01\u670d\u52a1\u5668\u914d\u7f6e\u4e3a\u533a\u57df\u7684\u4e3b\u8981\u670d\u52a1\u5668\u6216\u8f85\u52a9\u670d\u52a1\u5668\u3002\u533a\u57df\u4e2d\u53ea\u6709\u4e00\u53f0\u4e3b\u670d\u52a1\u5668&#xff0c;\u4f46\u53ef\u5177\u6709\u591a\u53f0\u8f85\u52a9\u670d\u52a1\u5668\u3002 \u8f85\u52a9\u670d\u52a1\u5668\u901a\u8fc7\u8bf7\u6c42\u533a\u57df\u4f20\u8f93&#xff0c;\u5b9a\u671f\u4ece\u4e3b\u670d\u52a1\u5668\u4e0b\u8f7d\u533a\u57df\u4fe1\u606f\u7684\u6700\u65b0\u7248\u672c\u3002 \u5b83\u4eec\u6267\u884c\u533a\u57df\u4f20\u8f93\u7684\u9891\u7387\u4ee5\u53ca\u5982\u4f55\u77e5\u9053\u5176\u6570\u636e\u662f\u5426\u8fc7\u65f6\u7531\u533a\u57df\u7684SOA\u8d44\u6e90\u8bb0\u5f55\u63a7\u5236\u3002<\/p>\n<p>\u540d\u79f0\u670d\u52a1\u5668\u53ef\u4ee5\u662f\u67d0\u4e9b\u533a\u57df\u7684\u4e3b\u8981\u670d\u52a1\u5668&#xff0c;\u540c\u65f6\u4e5f\u53ef\u4ee5\u5176\u4ed6\u533a\u57df\u7684\u8f85\u52a9\u670d\u52a1\u5668\u3002<\/p>\n<p>\u5f53\u524dBIND\u670d\u52a1\u5668\u89d2\u8272\u4e3amaster\u548cslave&#xff0c;\u4ee5\u540e\u4f1a\u53d8\u66f4\u4e3aprimary\u548csecondary&#xff08;\u4f8b\u5982&#xff0c;BIND<\/p>\n<p>9.16 ESV\u7248\u672c&#xff09;\u3002<\/p>\n<p>\u6ce8\u518c\u65b0\u7684DNS\u57df\u65f6&#xff0c;\u5fc5\u987b\u63d0\u4f9b\u8be5\u57df\u7684\u6240\u6709\u516c\u5171\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u7684\u540d\u79f0\u548cIP\u5730\u5740\u3002\u6211\u4eec\u7684\u6ce8\u518c\u670d\u52a1\u5546\u5c06\u8be5\u4fe1\u606f\u653e\u5728\u7236\u57df\u7684\u533a\u57df\u6587\u4ef6\u4e2d&#xff08;\u5982NS&#xff0c;A\u548cAAAA\u8bb0\u5f55&#xff09;&#xff0c;\u4ee5\u4fbfDNS\u89e3\u6790\u5668\u53ef\u4ee5\u627e\u5230\u6211\u4eec\u7684\u540d\u79f0\u670d\u52a1\u5668\u3002\u4e3a\u4e86\u5e2e\u52a9\u786e\u4fdd\u53ef\u9760\u6027&#xff0c;\u6211\u4eec\u5e94\u8be5\u81f3\u5c11\u6709\u4e24\u4e2a\u516c\u5171DNS\u670d\u52a1\u5668&#xff0c;\u5e76\u4e14\u5b83\u4eec\u5e94\u4f4d\u4e8e\u4e0d\u540c\u7684\u7ad9\u70b9&#xff0c;\u4ee5\u907f\u514d\u7531\u4e8e\u7f51\u7edc\u6545\u969c\u800c\u9020\u6210\u7684\u4e2d\u65ad\u3002<\/p>\n<p>\u5e76\u975e\u6240\u6709\u6743\u5a01\u670d\u52a1\u5668\u90fd\u5fc5\u987b\u662f\u516c\u5171\u7684\u3002\u4f8b\u5982&#xff0c;\u4f7f\u7528primary\u670d\u52a1\u5668\u6765\u7ba1\u7406\u533a\u57df\u6587\u4ef6&#xff0c;\u5e76\u5c06\u533a\u57df\u4fe1\u606f\u53d1\u5e03\u5230\u6743\u5a01\u7684secondary\u670d\u52a1\u5668\u3002primary\u670d\u52a1\u5668\u662f\u79c1\u6709\u7684&#xff0c;\u800csecondary\u670d\u52a1\u5668\u662f\u9762\u5411\u516c\u4f17\u7684&#xff0c;\u4ece\u800c\u4e3a\u5916\u90e8\u5ba2\u6237\u7aef\u63d0\u4f9b\u6743\u5a01\u6027\u7684\u7b54\u6848&#xff0c;\u4fdd\u62a4\u6211\u4eec\u7684primary\u670d\u52a1\u5668\u514d\u53d7\u653b\u51fb\u3002<\/p>\n<p>\u67b6\u6784\u793a\u4f8b****1&#xff1a;\u5916\u90e8\u5ba2\u6237\u7aef\u67e5\u627eexample.com<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210914-6ae7aa7a04989.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210914-6ae7aa7a3d9dc.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210914-6ae7aa7a6a107.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>BIND\u5b9e\u9a8c<\/h4>\n<h5>\u8282\u70b9\u89c4\u5212<\/h5>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210914-6ae7aa7a999dd.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4f7f\u7528centos 7\u6a21\u677f\u514b\u9686\u51fa2\u53f0&#xff0c;\u6839\u636e\u8282\u70b9\u89c4\u5212\u66f4\u6539\u4e3b\u673a\u540d&#xff0c;IP\u5730\u5740<\/p>\n<p>dns-server:<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;localhost ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># hostnamectl set-hostname dns-server<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;localhost ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nmcli connection modify ens33 ipv4.method manual ipv4.addresses 10.1.8.10\/24 ipv4.gateway 10.1.8.2 ipv4.dns 10.1.8.2 autoconnect yes<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;localhost ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nmcli connection up ens33<\/span><\/p>\n<p>dns-client:<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;localhost ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nmcli connection modify ens33 ipv4.method manual ipv4.addresses 10.1.8.11\/24 ipv4.gateway 10.1.8.2 ipv4.dns 10.1.8.2 autoconnect yes<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;localhost ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nmcli connection up ens33<\/span><\/p>\n<h5>\u5b89\u88c5 BIND<\/h5>\n<p>\u901a\u8fc7\u5b89\u88c5bind\u8f6f\u4ef6\u5305\u6765\u5b89\u88c5BIND\u3002 \u540d\u79f0\u670d\u52a1\u5668\u672c\u8eab\u4f5c\u4e3anamed\u670d\u52a1\u8fd0\u884c\u3002 bind\u5305\u5c06HTML\u548cPDF\u683c\u5f0f\u7684BIND\u6587\u6863\u5728\u5b89\u88c5\u5728\/usr\/share\/doc\/bind\/\u76ee\u5f55\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># yum install -y bind bind-utils<\/span><br \/>\n<span class=\"token comment\"># \u5b89\u88c5\u5b8c\u6210\u540e\u7684\u7ec4\u8981\u914d\u7f6e\u6587\u4ef6<\/span><br \/>\n\/etc\/named.conf <span class=\"token comment\">#\u4e3b\u914d\u7f6e<\/span><br \/>\n\/etc\/named.rfc1912.zones <span class=\"token comment\">#\u989d\u5916\u533a\u57df\u914d\u7f6e<\/span><br \/>\n\/var\/named\/ <span class=\"token comment\">#\u89e3\u6790\u5e93\u6587\u4ef6\u5b58\u653e\u76ee\u5f55<\/span><br \/>\n\/var\/log\/messages <span class=\"token comment\"># named \u6392\u9519\u65e5\u5fd7<\/span><\/p>\n<p>\u8f6f\u4ef6\u5305\u8bf4\u660e&#xff1a;<\/p>\n<ul>\n<li>\n<p>bind&#xff0c;\u670d\u52a1\u5668\u8f6f\u4ef6\u5305&#xff0c;\u771f\u6b63\u8fd0\u884c DNS \u670d\u52a1\u7684\u7a0b\u5e8f\u3002<\/p>\n<\/li>\n<li>\n<p>bind-utils&#xff0c; bind \u5de5\u5177\u8f6f\u4ef6\u5305&#xff0c;\u7528\u6765\u6d4b\u8bd5\u3001\u67e5\u8be2\u3001\u6392\u67e5 DNS&#xff0c;\u5305\u542b&#xff1a;nslookup \u3001 dig\u3001 host \u7b49\u547d\u4ee4\u3002<\/p>\n<ul>\n<li>\n<p>dig \u2192 \u5f3a\u5927\u7684 DNS \u67e5\u8be2<\/p>\n<\/li>\n<li>\n<p>nslookup \u2192 Windows\/Linux \u901a\u7528\u67e5\u8be2<\/p>\n<\/li>\n<li>\n<p>host \u2192 \u7b80\u5355\u57df\u540d\u89e3\u6790<\/p>\n<p>bind\u8f6f\u4ef6\u5305\u9ed8\u8ba4\u5c06\u670d\u52a1\u914d\u7f6e\u4e3a\u57fa\u672c\u7684\u9012\u5f52\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u3002 \u5b83\u88ab\u914d\u7f6e\u4e3alocalhost\u3001\u76f8\u5173\u57df\u548c\u5730\u5740\u7684primary\u670d\u52a1\u5668&#xff0c;\u4ee5\u51cf\u8f7b\u6839\u540d\u79f0\u670d\u52a1\u5668\u7684\u8d1f\u62c5\u3002 \u6b64\u9ed8\u8ba4\u914d\u7f6e\u8fd8\u9650\u5236\u4e86\u5bf9\u672c\u5730\u4e3b\u673a\u4e0a\u7a0b\u5e8f\u7684\u8bbf\u95ee\u3002 \u5b83\u4fa6\u542cIPv4\u548cIPv6\u73af\u56de\u63a5\u53e3\u7684\u7aef\u53e353 UDP\/TCP&#xff08;127.0.0.1\u548c:: 1&#xff09;\u4e0a\u7684\u8fde\u63a5\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>BIND\u914d\u7f6e\u9009\u9879<\/h5>\n<p>named\u4e3b\u8981\u914d\u7f6e\u6587\u4ef6\u662f**\/etc\/named.conf**\u3002 \u8be5\u6587\u4ef6\u63a7\u5236BIND\u7684\u57fa\u672c\u64cd\u4f5c&#xff0c;\u7531root\u7528\u6237&#xff08;named\u7ec4&#xff09;\u62e5\u6709&#xff0c;\u5177\u6709\u516b\u8fdb\u5236\u6743\u96500640&#xff0c;\u5e76\u4e14\u5177\u6709named_conf_t SELinux\u7c7b\u578b\u3002<br \/>\n\u914d\u7f6e\u6587\u4ef6\u8fd8\u6307\u5b9a\u4e86\u6bcf\u4e2a\u533a\u57df\u7684\u914d\u7f6e\u6587\u4ef6\u4f4d\u7f6e&#xff0c;\u8fd9\u4e9b\u6587\u4ef6\u901a\u5e38\u4fdd\u5b58\u5728**\/var\/named**\u4e2d\u3002<\/p>\n<ul>\n<li>\u914d\u7f6eDNS\u670d\u52a1\u5668\u9700\u8981\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4&#xff1a;<\/li>\n<li>\u914d\u7f6e\u5730\u5740\u5339\u914d\u5217\u8868\u3002<\/li>\n<li>\u914d\u7f6enamed\u4fa6\u542c\u7684IP\u5730\u5740\u3002<\/li>\n<li>\u914d\u7f6e\u5ba2\u6237\u7aef\u7684\u8bbf\u95ee\u63a7\u5236\u3002<\/li>\n<li>\u914d\u7f6ezone\u3002<\/li>\n<li>\u7f16\u5199\u533a\u57df\u6587\u4ef6\u3002<\/li>\n<\/ul>\n<h6>\u5b9a\u4e49\u5730\u5740\u5339\u914d\u5217\u8868<\/h6>\n<p>\u5728\/etc\/named.conf\u6587\u4ef6\u7684\u5f00\u5934&#xff0c;\u53ef\u4ee5\u4f7f\u7528acl\u6307\u4ee4\u5b9a\u4e49\u5730\u5740\u5339\u914d\u5217\u8868\u3002 acl\u6307\u4ee4\u4e0d\u662f\u7528\u4e8e\u63a7\u5236\u5ba2\u6237\u7aef\u5bf9\u670d\u52a1\u5668\u7684\u8bbf\u95ee&#xff0c;\u800c\u662f\u4f7f\u7528\u5b83\u4eec\u6765\u5b9a\u4e49IP\u5730\u5740\u548c\u7f51\u7edc\u5217\u8868\u3002<br \/>\n\u628a\u4e00\u7ec4 IP \u5730\u5740 \/ \u7f51\u6bb5 \u5b9a\u4e49\u6210\u4e00\u4e2a\u540d\u5b57&#xff08;\u7ed9 IP \u6bb5\u8d77\u522b\u540d&#xff0c;\u65b9\u4fbf DNS \u6743\u9650\u63a7\u5236&#xff09;&#xff0c;\u5b83\u4eec\u63d0\u4f9b\u522b\u540d&#xff0c;\u53ef\u4ee5\u4e0e\u8bbf\u95ee\u63a7\u5236\u6307\u4ee4\u548c\u5176\u4ed6\u914d\u7f6e\u9009\u9879\u4e00\u8d77\u4f7f\u7528&#xff0c;\u5e76\u4f7f\u66f4\u65b0\u914d\u7f6e\u6587\u4ef6\u66f4\u52a0\u5bb9\u6613\u3002<br \/>\n\u540e\u9762\u5728 named.conf \u91cc\u53ef\u4ee5\u76f4\u63a5\u7528\u8fd9\u4e2a\u540d\u5b57\u63a7\u5236&#xff1a;<\/p>\n<ul>\n<li>\u8c01\u80fd\u67e5\u8be2<\/li>\n<li>DNS\u8c01\u80fd\u9012\u5f52\u67e5\u8be2<\/li>\n<li>\u8c01\u80fd\u540c\u6b65\u533a\u57df\u6570\u636e<\/li>\n<\/ul>\n<p>\u6761\u76ee\u53ef\u4ee5\u662f\u5b8c\u6574\u7684IP\u5730\u5740\u6216\u7f51\u7edc&#xff0c;\u7528\u5c3e\u70b9&#xff08;10.1.8.&#xff09;\u6216CIDR\u8868\u793a\u6cd5&#xff08;192.168.0\/24\u62162001:db8::\/32&#xff09;\u8868\u793a&#xff0c;\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5148\u524d\u5b9a\u4e49\u7684\u5730\u5740\u5339\u914d\u5217\u8868\u7684\u540d\u79f0\u3002<\/p>\n<p>\u8bf7\u8003\u8651\u4ee5\u4e0bACL\u5b9a\u4e49&#xff1a;<\/p>\n<p><span class=\"token comment\"># vim \/etc\/named.conf<\/span><br \/>\n<span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53eb trusted-nets \u7684\u7ec4&#xff0c; \u5305\u542b\u4e24\u4e2a\u7f51\u6bb5&#xff1a; 192.168.10.0\/24 \u548c 192.168.20.0\/24<\/span><br \/>\nacl trusted-nets <span class=\"token punctuation\">{<\/span> <span class=\"token number\">192.168<\/span>.10.0\/24<span class=\"token punctuation\">;<\/span> <span class=\"token number\">192.168<\/span>.20.0\/24<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nacl classroom <span class=\"token punctuation\">{<\/span> <span class=\"token number\">10.1<\/span>.8.0\/24<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n\u5728\u5176\u503c\u4e2d\u4f7f\u7528classroom\u7684\u4efb\u4f55\u6307\u4ee4\u90fd\u5c06\u4e0e10.1.8.0\/24\u7f51\u7edc\u4e2d\u7684\u4e3b\u673a\u5339\u914d\u3002acl\u8bed\u53e5\u5b9a\u4e49\u7684\u5730\u5740\u96c6\u53ef\u4ee5\u88ab\u591a\u4e2a\u6307\u4ee4\u5f15\u7528\u3002<\/p>\n<p>Important<\/p>\n<p>acl&#xff1a;\u5b9a\u4e49\u8bbf\u95ee\u63a7\u5236\u5217\u8868<\/p>\n<p>trusted-nets&#xff1a;\u4f60\u81ea\u5df1\u8d77\u7684\u540d\u5b57&#xff08;\u53ef\u4fe1\u7f51\u6bb5&#xff09;<\/p>\n<p>{ } \u91cc\u9762\u653e\u5141\u8bb8\u7684\u7f51\u6bb5192.168.10.0\/24&#xff1a;\u7b2c\u4e00\u4e2a\u53ef\u4fe1\u7f51\u6bb5 &#xff0c;192.168.20.0\/24&#xff1a;\u7b2c\u4e8c\u4e2a\u53ef\u4fe1\u7f51\u6bb5<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210914-6ae7aa7aa8cce.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>**\u6848\u5217&#xff1a;\u4f60\u7684\u670d\u52a1\u5668IP&#xff1a;**10.1.8.0\/24<br \/>\nlocalhost \u2192 \u5339\u914d&#xff1a; 127.0.0.1 \u3001::1 \u3001 10.1.8.10<\/p>\n<p>localnets \u2192 \u5339\u914d&#xff1a; 127.0.0.0\/8 \u3001 ::1\/128\u3001 10.1.8.0\/24<\/p>\n<h6>\u914d\u7f6e named \u4fa6\u542c\u7684IP\u5730\u5740<\/h6>\n<p>\u6211\u4eec\u53ef\u4ee5\u5728\/etc\/named.conf\u6587\u4ef6options\u5757\u4e2d\u6307\u5b9a\u8bb8\u591a\u5168\u5c40\u8bbe\u7f6e\u3002listen-on\u548clisten-on-v6\u6307\u4ee4&#xff0c;\u6307\u5b9a\u4e86\u547d\u540d\u76d1\u542c\u7684\u63a5\u53e3\u548c\u7aef\u53e3\u3002<\/p>\n<ul>\n<li>listen-on\u9009\u9879\u91c7\u7528\u4ee5\u5206\u53f7\u5206\u9694\u7684IPv4\u5730\u5740\u5217\u8868\u3002<\/li>\n<li>listen-on-v6\u4f7f\u7528IPv6\u5730\u5740\u3002<\/li>\n<\/ul>\n<p>**\u793a\u4f8b1&#xff1a;**\u5c06BIND\u914d\u7f6e\u4e3a\u4fa6\u542c10.1.8.10 IPv4\u5730\u5740\u548c\u9ed8\u8ba4\u7684IPv4\u56de\u9001\u5730\u5740\u3002<\/p>\n<p><span class=\"token comment\"># vim \/etc\/named.conf<\/span><br \/>\noptions <span class=\"token punctuation\">{<\/span><br \/>\nlisten-on port <span class=\"token number\">53<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">127.0<\/span>.0.1<span class=\"token punctuation\">;<\/span> <span class=\"token number\">10.1<\/span>.8.10<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>listen-on \u662f \u201c\u76d1\u542c\u54ea\u4e9b\u672c\u673a IP\u201d<\/p>\n<p>127.0.0.1 &#xff1a;\u53ea\u5141\u8bb8\u672c\u673a\u5185\u90e8\u8bbf\u95ee DNS&#xff08;\u672c\u673a\u81ea\u5df1\u7528&#xff09;<\/p>\n<p>10.1.8.10 &#xff1a;\u5141\u8bb8\u5c40\u57df\u7f51 \/ \u5916\u90e8\u673a\u5668\u8bbf\u95ee\u8fd9\u53f0\u670d\u52a1\u5668\u7684 DNS<\/p>\n<p>\u8c01\u80fd\u8bbf\u95ee<\/p>\n<ul>\n<li>\n<p>\u672c\u673a\u8bbf\u95ee 127.0.0.1:53 \u2192 \u80fd\u6536\u5230<\/p>\n<\/li>\n<li>\n<p>\u672c\u673a \/ \u5176\u4ed6\u673a\u5668\u8bbf\u95ee 10.1.8.10:53 \u2192 \u80fd\u6536\u5230<\/p>\n<\/li>\n<li>\n<p>\u8bbf\u95ee\u672c\u673a\u5176\u4ed6 IP&#xff08;\u5982 192.168.x.x&#xff09; \u2192 \u6536\u4e0d\u5230<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u60f3\u8ba9 DNS \u76d1\u542c\u6240\u6709\u5730\u5740<\/p>\n<ul>\n<li>\u628a\u914d\u7f6e\u6539\u6210&#xff1a; listen-on port 53 { any; };<\/li>\n<\/ul>\n<p>**\u793a\u4f8b2&#xff1a;**\u7ed3\u5408acl\u6307\u4ee4\u914d\u7f6e\u3002<\/p>\n<p># vim \/etc\/named.conf<br \/>\nacl interfaces { 127.0.0.1; 10.1.8.10; };<br \/>\nacl interfacesv6 { ::1; 2001:db8:2020::5300; };<br \/>\noptions {<br \/>\nlisten-on port 53 { interfaces; };<br \/>\nlisten-on-v6 port 53 { interfacesv6; };<br \/>\n&#8230;output omitted&#8230;<br \/>\n};<\/p>\n<h6>\u914d\u7f6e\u5ba2\u6237\u7aef\u7684\u8bbf\u95ee\u63a7\u5236<\/h6>\n<p>\u6211\u4eec\u53ef\u4ee5\u5728\/etc\/named.conf\u6587\u4ef6options\u5757\u4e2d\u4f7f\u7528\u4ee5\u4e0b\u4e09\u4e2a\u6307\u4ee4\u914d\u7f6e\u63a7\u5236\u8bbf\u95ee&#xff1a;<\/p>\n<ul>\n<li>\n<p>allow-query&#xff0c;\u63a7\u5236\u6240\u6709\u67e5\u8be2\u3002 \u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;allow-query\u8bbe\u7f6e\u4e3alocalhost&#xff0c;\u5bf9\u4e8e\u516c\u5f00\u6743\u5a01\u670d\u52a1\u5668\u5fc5\u987b\u5b9a\u4e49allow-query { any; };\u5141\u8bb8\u4e92\u8054\u7f51\u6258\u7ba1\u8005\u4ece\u4ed6\u4eec\u90a3\u91cc\u83b7\u53d6\u4fe1\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>allow-recursion&#xff0c;\u63a7\u5236\u9012\u5f52\u67e5\u8be2\u3002 \u6743\u5a01\u670d\u52a1\u5668\u4e0d\u5e94\u5141\u8bb8\u9012\u5f52\u67e5\u8be2&#xff0c; \u9632\u6b62\u670d\u52a1\u5668\u88ab\u7528\u4e8eDNS\u653e\u5927\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\u653b\u51fb&#xff0c;\u5e76\u66f4\u597d\u5730\u4fdd\u62a4\u5176\u514d\u53d7\u7f13\u5b58\u4e2d\u6bd2\u653b\u51fb\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u914d\u7f6e\u6b64\u529f\u80fd \u7b80\u5355\u7684\u65b9\u6cd5\u662f\u5b8c\u5168\u5173\u95ed\u9012\u5f52&#xff1a;<\/p>\n<p>options <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\nrecursion no<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5982\u679c\u5fc5\u987b\u5141\u8bb8\u53d7\u4fe1\u4efb\u7684\u5ba2\u6237\u7aef\u6267\u884c\u9012\u5f52&#xff0c;\u5219\u53ef\u4ee5\u6253\u5f00\u9012\u5f52\u5e76\u4e3a\u8fd9\u4e9b\u7279\u5b9a\u4e3b\u673a\u6216\u7f51\u7edc\u8bbe\u7f6eallowrecursion&#xff1a;<\/p>\n<p>options <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\nrecursion <span class=\"token function\">yes<\/span><span class=\"token punctuation\">;<\/span><br \/>\nallow-recursion <span class=\"token punctuation\">{<\/span> trusted-nets<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>allow-transfer&#xff0c;\u63a7\u5236\u533a\u57df\u8f6c\u79fb(Zone Transfer)\u3002 \u533a\u57df\u8f6c\u79fb\u5141\u8bb8\u5ba2\u6237\u7aef\u83b7\u53d6\u6211\u4eec\u533a\u57df\u4e2d\u6240\u6709\u6570\u636e\u7684\u8f6c\u50a8\u3002  \u533a\u57df\u8f6c\u79fb\u5e94\u8be5\u53d7\u5230\u9650\u5236&#xff0c;\u5426\u5219\u653b\u51fb\u8005\u5f88\u5bb9\u6613\u5feb\u901f\u83b7\u53d6\u6211\u4eec\u533a\u57df\u4e2d\u7684\u6240\u6709\u8d44\u6e90\u8bb0\u5f55\u3002<br \/>\nDNS \u4e3b\u4ece\u67b6\u6784\u4e2d&#xff1a;<br \/>\n\u4e3bDNS&#xff1a;\u8d1f\u8d23\u5199\u89e3\u6790\u8bb0\u5f55<br \/>\n\u4eceDNS&#xff1a;\u9700\u8981\u4ece\u4e3b\u670d\u52a1\u5668\u4e0b\u8f7d\u5168\u90e8\u89e3\u6790\u8bb0\u5f55<\/p>\n<p>\u8fd9\u4e2a\u4e0b\u8f7d\u52a8\u4f5c\u53eb \u533a\u57df\u4f20\u9001&#xff08;Zone Transfer&#xff09;<\/p>\n<p>allow-transfer <span class=\"token punctuation\">{<\/span> \u5141\u8bb8\u7684IP <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\"># \u5c31\u662f\u53ea\u5141\u8bb8\u8fd9\u4e9b IP \u6765\u4e0b\u8f7d\u4f60\u7684 DNS \u6570\u636e\u3002<\/span><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528dig\u547d\u4ee4\u67e5\u8be2\u8be5\u533a\u57df\u7684AXFR(Zone Transfer)\u8bb0\u5f55&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> axfr &#064;classroom.zyy zyy<br \/>\n<span class=\"token comment\">#dig DNS \u67e5\u8be2\u5de5\u5177&#xff08;\u6765\u81ea bind-utils&#xff09;<\/span><br \/>\n<span class=\"token comment\">#axfr &#061; Area Transfer &#061; \u533a\u57df\u4f20\u9001&#061; \u4e00\u6b21\u6027\u4e0b\u8f7d\u6574\u4e2a\u57df\u540d\u7684\u6240\u6709\u89e3\u6790\u8bb0\u5f55<\/span><br \/>\n<span class=\"token comment\"># &#064;classroom.zyy &#064; \u540e\u9762 &#061; \u5411\u54ea\u53f0 DNS \u670d\u52a1\u5668\u53d1\u8d77\u8bf7\u6c42,\u8fd9\u91cc\u5c31\u662f\u5411<\/span><br \/>\nclassroom.zyy \u8fd9\u53f0 DNS \u670d\u52a1\u5668\u8bf7\u6c42<br \/>\n<span class=\"token comment\">#zyy\u8981\u4e0b\u8f7d \u54ea\u4e2a\u57df\u540d\u533a\u57df \u7684\u5168\u90e8\u8bb0\u5f55<\/span><\/p>\n<h5>\u5b9e\u9a8c\u6b65\u9aa4<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vim \/etc\/named.conf<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\noptions <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\"># \u4fee\u6539listen-on<\/span><br \/>\nlisten-on port <span class=\"token number\">53<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token number\">127.0<\/span>.0.1<span class=\"token punctuation\">;<\/span> <span class=\"token number\">10.1<\/span>.8.10<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\n<span class=\"token comment\"># \u4fee\u6539allow-query<\/span><br \/>\nallow-query <span class=\"token punctuation\">{<\/span> any<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><\/p>\n<p>\u914d\u7f6e zone<\/p>\n<p>\u793a\u4f8b&#xff1a;\u4ee5\u4e0bnamed.conf\u5757\u5c06\u670d\u52a1\u5668\u914d\u7f6e\u4e3a\u627f\u8f7dzyy\u53ca\u5176\u76f8\u5e94\u7684\u53cd\u5411\u67e5\u627e\u533a\u57df8.1.10.inaddr.arpa\u7684\u4e3b\u8981\u533a\u57df\u6587\u4ef6\u3002 \u5b83\u4f7f\u7528\u4eceACL\u6807\u8bc6zyy\u670d\u52a1\u5668\u4e2d\u68c0\u7d22\u5230\u7684\u533a\u57df\u6587\u4ef6&#xff0c;\u5145\u5f53zyy\u57df\u7684\u8f85\u52a9\u670d\u52a1\u5668\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vim \/etc\/named.conf<\/span><br \/>\n<span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><span class=\"token punctuation\">..<\/span><br \/>\n<span class=\"token comment\"># \u6700\u540e\u6dfb\u52a0\u5982\u4e0b\u5185\u5bb9<\/span><br \/>\nzone <span class=\"token string\">&#034;zyy&#034;<\/span> IN <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token builtin class-name\">type<\/span> master<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">file<\/span> <span class=\"token string\">&#034;zyy.zone&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\nzone <span class=\"token string\">&#034;8.1.10.in-addr.arpa&#034;<\/span> IN <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token builtin class-name\">type<\/span> master<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">file<\/span> <span class=\"token string\">&#034;10.1.8.zone&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u914d\u7f6e\u8bf4\u660e&#xff1a;<\/p>\n<ul>\n<li>type&#xff0c;\u6307\u5b9a\u670d\u52a1\u5668\u89d2\u8272\u3002<\/li>\n<li>file&#xff0c;\u6307\u5b9a\u76f8\u5bf9\u8def\u5f84\u540d\u3002 \u76f8\u5bf9\u8def\u5f84\u7531 options \u5757\u4e2d\u7684 directory \u6307\u4ee4\u8bbe\u7f6e\u3002<\/li>\n<\/ul>\n<h6>\u521b\u5efa\u533a\u57df\u6587\u4ef6<\/h6>\n<p>\u8f85\u52a9\u533a\u57df\u6587\u4ef6\u5e94\u4fdd\u5b58\u5728\/var\/named\/slaves\u4e2d\u3002\u8f85\u52a9\u670d\u52a1\u5668\u542f\u52a8\u65f6&#xff0c;\u4f1a\u5c06\u5176\u7f13\u5b58\u7684\u533a\u57df\u7248\u672c\u4e0e\u4e3b\u670d\u52a1\u5668\u4e0a\u7684\u5f53\u524d\u7248\u672c\u8fdb\u884c\u6bd4\u8f83&#xff1a;\u5982\u679c\u533a\u57df\u6587\u4ef6\u7248\u672c\u662f \u65b0\u7684&#xff0c;\u5219\u4f7f\u7528\u8be5\u533a\u57df\u6587\u4ef6&#xff1b; \u5982\u679c\u533a\u57df\u6587\u4ef6\u7248\u672c\u4e0d\u662f \u65b0\u7684\u6216\u6587\u4ef6\u4e0d\u5b58\u5728&#xff0c;\u5219named\u6267\u884c\u533a\u57df\u4f20\u8f93\u5e76\u5c06\u7ed3\u679c\u7f13\u5b58\u5728\u8be5\u6587\u4ef6\u4e2d\u3002<br \/>\nBIND \u5e94\u8be5\u80fd\u591f\u8bfb\u53d6\u8fd9\u4e9b\u533a\u57df\u6587\u4ef6&#xff0c;\u4f46\u4e0d\u80fd\u5199\u5165\u5b83\u4eec\u3002 \u8fd9\u4e9b\u6587\u4ef6\u5e94\u5f52root\u7528\u6237\u548cnamed\u7ec4\u6240\u6709&#xff0c;\u4ee5\u4fbf\u5b88\u62a4\u7a0b\u5e8f\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u53d7\u5230\u635f\u5bb3\u65f6\u4e0d\u80fd\u66f4\u6539\u5b83\u4eec\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># cp \/var\/named\/named.localhost \/var\/named\/zyy.zone<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># cp \/var\/named\/named.loopback \/var\/named\/10.1.8.zone<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># chmod 640 \/var\/named\/*.zone<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># chown root:named \/var\/named\/*.zone<\/span><br \/>\n<span class=\"token comment\"># \u5982\u679c\u7cfb\u7edf\u5f00\u542f\u4e86selinux\u529f\u80fd&#xff0c;\u6267\u884c\u4e0b\u9762\u547d\u4ee4\u8bbe\u7f6e\u6587\u4ef6\u6807\u7b7e<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># chcon -t named_zone_t \/var\/named\/*.zone <\/span><\/p>\n<p>\u7f16\u8f91\u533a\u57df\u6587\u4ef6\u683c\u5f0f<br \/>\nBIND\u533a\u57df\u6587\u4ef6\u662f\u4e00\u4e2a\u6587\u672c\u6587\u4ef6&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u6bcf\u884c\u5305\u542b\u4e00\u4e2a\u6307\u4ee4\u6216\u8d44\u6e90\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u8d44\u6e90\u8bb0\u5f55\u7684\u6570\u636e\u4e2d\u5305\u542b\u62ec\u53f7&#xff0c;\u5219\u5b83\u53ef\u4ee5\u8de8\u8d8a\u591a\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u540c\u4e00\u7269\u7406\u884c\u4e0a\u7684\u5206\u53f7&#xff08;;&#xff09;\u53f3\u4fa7\u7684\u6240\u6709\u5185\u5bb9\u5747\u88ab\u6ce8\u91ca\u6389\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u533a\u57df\u6587\u4ef6\u53ef\u4ee5\u4ee5**$TTL**\u6307\u4ee4\u5f00\u5934&#xff0c;\u8be5\u6307\u4ee4\u4e3a\u4efb\u4f55\u672a\u5217\u51fa\u7684\u8d44\u6e90\u8bb0\u5f55\u8bbe\u7f6e\u9ed8\u8ba4\u7684TTL\u3002 \u8fd9\u4f7f\u6211\u4eec\u53ef\u4ee5\u4e00\u6b21\u4e3a\u8bb8\u591a\u8d44\u6e90\u8bb0\u5f55\u8c03\u6574TTL\u3002 \u65e0\u9700\u7f16\u8f91\u6574\u4e2a\u6587\u4ef6\u3002 \u5982\u679cTTL\u662f\u6570\u5b57&#xff0c;\u5219\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002<\/p>\n<p><span class=\"token variable\">$TTL<\/span> <span class=\"token number\">3600<\/span><\/p>\n<p>\u5728\u6570\u5b57\u540e\u9762\u53ef\u4ee5\u8ddf\u5355\u4e2a\u5b57\u6bcd\u6307\u5b9a\u5176\u4ed6\u65f6\u95f4\u5355\u4f4d&#xff1a;<\/p>\n<ul>\n<li>M\u8868\u793a\u5206\u949f&#xff08;1M\u4e3a60&#xff09;<\/li>\n<li>H\u5c0f\u65f6&#xff08;1H\u662f3600&#xff09;<\/li>\n<li>D\u5929&#xff08;1D\u4e3a86400&#xff09;<\/li>\n<li>W\u6570\u5468&#xff08;1W\u662f604800&#xff09;<\/li>\n<\/ul>\n<p>\u6bcf\u4e2a\u533a\u57df\u6587\u4ef6\u4ec5\u5305\u542b\u4e00\u4e2aSOA&#xff08;\u6388\u6743\u5f00\u59cb&#xff09;\u8d44\u6e90\u8bb0\u5f55\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210914-6ae7aa7ac1c65.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>1.\u5b9a\u4e49\u533a\u57df\u7684\u540d\u79f0&#xff08;\u5728\u6b64\u793a\u4f8b\u4e2d\u4e3aexample.com&#xff09;&#xff0c;\u540e\u8ddf IN SOA &#xff0c;\u6807\u8bc6\u8bb0\u5f55\u7684\u7c7b\u522b\u548c\u7c7b\u578b&#xff08;\u4e92\u8054\u7f51SOA\u8bb0\u5f55&#xff09;\u3002<\/p>\n<p>2.\u6b64\u533a\u57df\u7684\u4e3b\u8981\u540d\u79f0\u670d\u52a1\u5668primary.example.com\u7684\u540d\u79f0\u3002<\/p>\n<p>3.\u8be5\u533a\u57df\u8d1f\u8d23\u65b9\u7684\u8054\u7cfb\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002\u5730\u5740\u4e2d\u7684\u7b2c\u4e00\u4e2a\u70b9&#xff08;.&#xff09;\u88ab\u89c6\u4e3a&#064;&#xff0c;root.example.com. \u4ee3\u8868 root&#064;example.com. \u3002<\/p>\n<p>4.\u4ee3\u8868\u6587\u4ef6\u4fee\u8ba2\u7684\u5e8f\u5217\u53f7\u3002 \u6bcf\u6b21\u6587\u4ef6\u66f4\u6539\u65f6&#xff0c;\u5fc5\u987b\u624b\u52a8\u589e\u52a0\u5e8f\u5217\u53f7\u503c\u3002<\/p>\n<p>5.\u8f85\u52a9\u670d\u52a1\u5668\u5e94\u591a\u4e45\u67e5\u8be2\u4e00\u6b21\u4e3b\u670d\u52a1\u5668&#xff0c;\u4ee5\u67e5\u770b\u662f\u5426\u9700\u8981\u5237\u65b0\u533a\u57df\u3002<\/p>\n<p>6.\u5982\u679c\u8f85\u52a9\u52a1\u5668\u5237\u65b0\u5931\u8d25&#xff0c;\u5219\u5e94\u5c1d\u8bd5\u5c1d\u8bd5\u91cd\u65b0\u8fde\u63a5\u7684\u9891\u7387\u3002<\/p>\n<p>7.\u5728\u653e\u5f03\u4e4b\u524d&#xff0c;\u8f85\u52a9\u670d\u52a1\u5668\u5e94\u5c1d\u8bd5\u91cd\u65b0\u8fde\u63a5\u5230\u65e0\u54cd\u5e94\u7684\u4e3b\u8981\u670d\u52a1\u5668\u7684\u65f6\u95f4\u3002 \u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u65f6&#xff0c;\u8f85\u52a9\u670d\u52a1\u5668\u5c06\u5047\u5b9a\u8be5\u533a\u57df\u4e0d\u518d\u5b58\u5728&#xff0c;\u5e76\u505c\u6b62\u56de\u7b54\u8be5\u533a\u57df\u7684\u67e5\u8be2\u3002<\/p>\n<p>8.\u5176\u4ed6\u540d\u79f0\u670d\u52a1\u5668\u7f13\u5b58\u6765\u81ea\u8be5\u533a\u57df\u7684NXDOMAIN\u8bb0\u5f55\u7684\u65f6\u95f4\u3002<\/p>\n<h6>\u6dfb\u52a0\u8bb0\u5f55<\/h6>\n<p>\u6b63\u5411\u8bb0\u5f55&#xff0c;\u5c06\u540d\u79f0\u6620\u5c04\u5230IP\u5730\u5740\u548c\u5176\u4ed6\u8bb0\u5f55\u3002\u8be5\u533a\u57df\u6587\u4ef6\u5fc5\u987b\u5177\u6709&#xff1a;<\/p>\n<ul>\n<li>\n<p>SOA\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<li>\n<p>\u6bcf\u4e2a\u516c\u7528\u540d\u79f0\u670d\u52a1\u5668\u7684NS\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<li>\n<p>\u8be5\u533a\u57df\u7684\u5176\u4ed6A&#xff0c;AAAA&#xff0c;CNAME&#xff0c;MX&#xff0c;SRV\u548cTXT\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b&#xff1a;8.1.10.inaddr.arpa\u533a\u57df<\/p>\n<p><span class=\"token comment\"># \u53c2\u8003\/var\/named\/named.loopback<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vim \/var\/named\/10.1.8.zone<\/span><\/p>\n<p><span class=\"token variable\">$TTL<\/span> 1D<br \/>\n&#064; IN SOA dns.zyy. root.zyy. <span class=\"token punctuation\">(<\/span><br \/>\n<span class=\"token number\">0<\/span> <span class=\"token punctuation\">;<\/span> serial<br \/>\n1D <span class=\"token punctuation\">;<\/span> refresh<br \/>\n1H <span class=\"token punctuation\">;<\/span> retry<br \/>\n1W <span class=\"token punctuation\">;<\/span> expire<br \/>\n3H <span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">;<\/span> minimum<br \/>\nIN NS dns.zyy.<br \/>\n<span class=\"token number\">10<\/span> IN PTR server.zyy.<br \/>\n<span class=\"token number\">10<\/span> IN PTR dns.zyy.<br \/>\n<span class=\"token number\">11<\/span> IN PTR client.zyy.<br \/>\n<span class=\"token number\">11<\/span> IN PTR student.zyy.<br \/>\n<span class=\"token number\">200<\/span> IN PTR www.zyy.<br \/>\n<span class=\"token number\">253<\/span> IN PTR mail.zyy.<\/p>\n<p>IP\u5730\u5740\u7684\u201c\u540d\u79f0\u201d\u4e0d\u9700\u8981\u5305\u62ec\u5176\u4f59\u7684\u57df\u540d&#xff0c;1\u4ee3\u66ff1.8.1.10.in-addr.arpa.\u3002<\/p>\n<h6>\u9a8c\u8bc1\u914d\u7f6e<\/h6>\n<p>\u5728\u91cd\u65b0\u52a0\u8f7d\u6216\u91cd\u65b0\u542f\u52a8named\u4e4b\u524d&#xff0c;\u5e94\u8be5\u9a8c\u8bc1\/etc\/named.conf\u6587\u4ef6\u548c\u533a\u57df\u6587\u4ef6\u7684\u8bed\u6cd5\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210914-6ae7aa7ad7e77.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u542f\u52a8\u670d\u52a1\u5668\u65f6&#xff0c;\u5e94\u76d1\u89c6\u7cfb\u7edf\u65e5\u5fd7\u4e2d\u662f\u5426\u6709\u9519\u8bef\u3002 \u5355\u4e2a\u9519\u8bef\u4e5f\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6574\u4e2a\u533a\u57df\u65e0\u6cd5\u52a0\u8f7d&#xff0c;\u4f46\u662f\u65e0\u6cd5\u52a0\u8f7d\u533a\u57df\u4e0d\u4f1a\u963b\u6b62\u540e\u53f0\u9a7b\u7559\u7a0b\u5e8f\u542f\u52a8\u3002\u56e0\u6b64\u9664\u975e\u6211\u4eec\u5728\u542f\u52a8\u8fc7\u7a0b\u4e2d\u76d1\u89c6\u7cfb\u7edf\u65e5\u5fd7&#xff0c;\u5426\u5219\u5f88\u96be\u5f04\u6e05\u695a\u54ea\u91cc\u9519\u4e86\u3002<\/p>\n<p>\u4f8b\u5982&#xff0c;\u6211\u4eec\u53ef\u4ee5\u67e5\u770b\u4e0enamed.service\u5355\u4f4d\u6587\u4ef6\u6709\u5173\u7684systemd\u7684\u65e5\u5fd7\u8f93\u51fa&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># journalctl -f _SYSTEMD_UNIT&#061;named.service<\/span><\/p>\n<p>\u6ce8\u610f\u533a\u57df\u884c&#xff0c;\u6bcf\u4e2a\u533a\u57df\u4ee3\u8868\u670d\u52a1\u5668\u52a0\u8f7d\u7684\u6743\u5a01\u533a\u57df\u3002 \u5982\u679c\u65e0\u6cd5\u52a0\u8f7d\u533a\u57df&#xff0c;\u8bf7\u6ce8\u610f\u663e\u793a\u7684\u9519\u8bef\u6d88\u606f\u3002<\/p>\n<p>\u786e\u8ba4\u533a\u57df\u6b63\u786e\u52a0\u8f7d\u540e&#xff0c;\u8bf7\u9a8c\u8bc1\u533a\u57df\u5185\u5bb9\u662f\u5426\u6b63\u786e\u3002\u4f7f\u7528host -l DOMAIN\u6216dig -t AXFR DOMAIN\u547d\u4ee4\u542f\u52a8\u533a\u57df\u4f20\u8f93&#xff0c;\u751f\u6210\u6240\u6709\u533a\u57df\u8bb0\u5f55\u7684\u5217\u8868\u3002 \u8bf7\u8bb0\u4f4f&#xff0c;\u8fd9\u5fc5\u987b\u5728\u670d\u52a1\u5668\u7684allow-transfer\u6307\u4ee4\u4e2d\u5217\u51fa\u7684\u4e3b\u673a\u4e0a\u5b8c\u6210\u3002<\/p>\n<h5>\u8fd0\u884c BIND<\/h5>\n<p><span class=\"token comment\"># \u542f\u7528\u5e76\u542f\u52a8\u670d\u52a1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># systemctl enable named &#8211;now<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># systemctl status named<\/span><br \/>\n<span class=\"token comment\"># \u8bbe\u7f6e\u9632\u706b\u5899<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># firewall-cmd &#8211;add-service&#061;dns<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># firewall-cmd &#8211;add-service&#061;dns &#8211;permanent<\/span><\/p>\n<h5>\u5ba2\u6237\u7aef\u6d4b\u8bd5<\/h5>\n<p>\u65b9\u5f0f1&#xff1a;\u914d\u7f6edns<\/p>\n<p><span class=\"token comment\"># \u914d\u7f6e\u5ba2\u6237\u7aef dns<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nmcli connection modify ens33 ipv4.dns 10.1.8.10<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># nmcli connection up ens33<\/span><br \/>\n<span class=\"token comment\"># ping \u5de5\u5177\u6d4b\u8bd5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># ping dns.zyy<\/span><br \/>\nPING dns.zyy <span class=\"token punctuation\">(<\/span><span class=\"token number\">10.1<\/span>.8.10<span class=\"token punctuation\">)<\/span> <span class=\"token number\">56<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">84<\/span><span class=\"token punctuation\">)<\/span> bytes of data.<br \/>\n<span class=\"token number\">64<\/span> bytes from dns.zyy <span class=\"token punctuation\">(<\/span><span class=\"token number\">10.1<\/span>.8.10<span class=\"token punctuation\">)<\/span>: <span class=\"token assign-left variable\">icmp_seq<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">1<\/span> <span class=\"token assign-left variable\">ttl<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">64<\/span> <span class=\"token assign-left variable\">time<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">1.26<\/span> ms<br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># ping student.zyy<\/span><br \/>\nPING client.zyy <span class=\"token punctuation\">(<\/span><span class=\"token number\">10.1<\/span>.8.11<span class=\"token punctuation\">)<\/span> <span class=\"token number\">56<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">84<\/span><span class=\"token punctuation\">)<\/span> bytes of data.<br \/>\n<span class=\"token number\">64<\/span> bytes from client.zyy <span class=\"token punctuation\">(<\/span><span class=\"token number\">10.1<\/span>.8.11<span class=\"token punctuation\">)<\/span>: <span class=\"token assign-left variable\">icmp_seq<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">1<\/span> <span class=\"token assign-left variable\">ttl<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">64<\/span> <span class=\"token assign-left variable\">time<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">0.092<\/span> ms<br \/>\n<span class=\"token comment\"># \u5176\u4ed6\u5de5\u5177<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># host student.zyy<\/span><br \/>\nstudent.zyy is an <span class=\"token builtin class-name\">alias<\/span> <span class=\"token keyword\">for<\/span> client.zyy.<br \/>\nclient.zyy has address <span class=\"token number\">10.1<\/span>.8.11<br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># host 10.1.8.10<\/span><br \/>\n<span class=\"token number\">10.8<\/span>.1.10.in-addr.arpa domain name pointer server.zyy.<br \/>\n<span class=\"token number\">10.8<\/span>.1.10.in-addr.arpa domain name pointer dns.zyy.<br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># getent hosts student.zyy<\/span><br \/>\n<span class=\"token number\">10.1<\/span>.8.11 client.zyy student.zyy<\/p>\n<p>\u65b9\u5f0f2&#xff1a;dig\u5de5\u5177<\/p>\n<p><span class=\"token comment\"># dig\u5de5\u5177\u6d4b\u8bd5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># yum install -y bind-utils<\/span><br \/>\n<span class=\"token comment\"># \u67e5\u8be2\u76f8\u5173\u8bb0\u5f55&#xff0c;&#064;10.1.8.10\u6307\u5b9a\u541110.1.8.10\u670d\u52a1\u5668\u67e5\u8be2\u8bb0\u5f55<\/span><br \/>\n<span class=\"token comment\"># \u67e5\u8be2NS\u8bb0\u5f55<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.10 zyy NS<\/span><br \/>\n<span class=\"token comment\"># \u67e5\u8be2MX\u8bb0\u5f55<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.10 zyy MX<\/span><br \/>\n<span class=\"token comment\"># \u67e5\u8be2A\u8bb0\u5f55<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.10 student.zyy<\/span><br \/>\n<span class=\"token comment\"># \u67e5\u8be2PTR\u8bb0\u5f55<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dns-client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.10 -x 10.1.8.200<\/span><\/p>\n<h4>\u914d\u7f6e\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668-Unbound(\u6269\u5c55-\u81ea\u5b66)<\/h4>\n<p>\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u5c06DNS\u67e5\u8be2\u7ed3\u679c\u5b58\u50a8\u5728\u672c\u5730\u7f13\u5b58\u4e2d&#xff0c;\u5e76\u5728\u5b83\u4eec\u7684TTL\u8fc7\u671f\u65f6\u4ece\u7f13\u5b58\u4e2d\u5220\u9664\u8d44\u6e90\u8bb0\u5f55\u3002\u5728\u672c\u5730\u7f51\u7edc\u4e2d\u8bbe\u7f6e\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668&#xff0c;\u63d0\u4f9b\u672c\u7ed9\u5ba2\u6237\u7aef\u67e5\u8be2\u662f\u5f88\u5e38\u89c1\u7684\u3002 \u901a\u8fc7\u51cf\u5c11\u8de8Internet\u7684DNS\u6d41\u91cf&#xff0c;\u8fd9\u6781\u5927\u5730\u63d0\u9ad8\u4e86DNS\u540d\u79f0\u89e3\u6790\u7684\u6548\u7387\u3002 \u968f\u7740\u672c\u5730\u7f13\u5b58\u6570\u91cf\u589e\u52a0&#xff0c;\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u56de\u7b54\u8d8a\u6765\u8d8a\u591a\u7684\u5ba2\u6237\u7aef\u67e5\u8be2&#xff0c;DNS\u6027\u80fd\u5c06\u5f97\u5230\u6539\u5584\u3002<\/p>\n<p>\u6709\u51e0\u4e2a\u8f6f\u4ef6\u5305\u53ef\u7528\u4e8e\u914d\u7f6e\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668&#xff0c;\u5305\u62ecbind&#xff0c;dnsmasq\u548cunbound\u3002<\/p>\n<p>\u5728\u672c\u90e8\u5206\u4e2d&#xff0c;\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u5b89\u88c5&#xff0c;\u914d\u7f6e\u548c\u7ba1\u7406Unbound\u3002<\/p>\n<h5>\u5b89\u88c5\u8f6f\u4ef6\u5305<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># yum install -y unbound<\/span><\/p>\n<h5>\u914d\u7f6e unbound<\/h5>\n<p>\u914d\u7f6e\u6587\u4ef6\/etc\/unbound\/unbound.conf&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u5728server\u5b50\u53e5\u4e2d&#xff0c;\u5b9a\u4e49\u7f51\u7edc\u76d1\u542c\u3002<\/p>\n<p>interface: <span class=\"token number\">10.1<\/span>.8.20<br \/>\ninterface: <span class=\"token number\">2001<\/span>:db8:1001::f0<\/p>\n<\/li>\n<\/ul>\n<p>1.\u9ed8\u8ba4UNbound\u76d1\u542clocalhost\u7f51\u7edc\u63a5\u53e3\u3002<\/p>\n<p>2.\u5982\u679c\u8bbe\u7f6e\u76d1\u542c0.0.0.0\u6216\u8005::0&#xff0c;\u5219\u5c06\u4f1a\u76d1\u542c\u6240\u6709\u63a5\u53e3&#xff0c;\u540c\u65f6\u9700\u8981\u8bbe\u7f6einterface-automatic\u4e3ayes\u3002\u5426\u5219\u8bbe\u7f6einterface-automatic\u4e3ano\u3002<\/p>\n<p>3.\u5982\u679c\u6b64\u65f6\u672c\u5730\u8fd8\u8fd0\u884clibvirtd\u670d\u52a1&#xff0c;\u5e76\u4e14Unbound\u7ed1\u5b9a\u5230\u6240\u6709\u63a5\u53e3&#xff0c;\u5c06\u5bfc\u81f4Unbound\u65e0\u6cd5\u542f\u52a8\u3002\u56e0\u4e3alibvirtd\u4f1a\u8fd0\u884cdnsmasq&#xff0c;\u800cdnsmasq\u4e5f\u4f1a\u5728local\u63a5\u53e3\u4e0a\u76d1\u542c53\u7aef\u53e3\u3002<\/p>\n<ul>\n<li>\u5728server\u5b50\u53e5\u4e2d&#xff0c;\u5b9a\u4e49\u8bbf\u95ee\u63a7\u5236\u5217\u8868\u3002<br \/>\n\u4f7f\u7528access-control\u9009\u9879\u6307\u5b9a\u54ea\u4e9b\u5ba2\u6237\u7aef\u53ef\u4ee5\u8fdb\u884c\u9012\u5f52\u67e5\u8be2\u3002 \u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u7f51\u7edc\u6216IP\u5730\u5740&#xff0c; \u5177\u4f53\u7684\u5339\u914d\u9879\u83b7\u80dc\u3002 \u4e09\u4e2a \u6709\u7528\u7684\u8bbe\u7f6e\u662f&#xff1a;<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210915-6ae7aa7b09768.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u914d\u7f6e\u8bbf\u95ee\u63a7\u5236&#xff0c;\u7981\u6b62\u9664\u9884\u671f\u5ba2\u6237\u7aef\u4e4b\u5916\u7684\u4e3b\u673a\u4f7f\u7528\u9012\u5f52\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u3002 \u5982\u679c\u6211\u4eec\u5141\u8bb8Internet\u4e0a\u7684\u4efb\u4f55\u4e3b\u673a\u9012\u5f52\u67e5\u8be2\u6211\u4eec\u7684\u670d\u52a1\u5668&#xff0c;\u5219\u653b\u51fb\u8005\u53ef\u4ee5\u4f7f\u7528\u5b83\u5bf9\u7b2c\u4e09\u65b9\u6267\u884cDNS\u653e\u5927\u5206\u5e03\u5f0f\u62d2\u7edd\u670d\u52a1\u653b<br \/>\n\u51fb\u3002\u8be6\u60c5\u53c2\u8003https:\/\/blog.cloudflare.com\/deep-inside-a-dns-amplification-ddos-attack\/\u3002<br \/>\n&#xff08;\u53ef\u9009&#xff09;\u8f6c\u53d1\u8bf7\u6c42\u5230\u5176\u4ed6\u540d\u79f0\u670d\u52a1\u5668<br \/>\n\u5982\u679c\u6b64\u540d\u79f0\u670d\u52a1\u5668\u65e0\u6cd5\u8bbf\u95eeInternet&#xff0c;\u4f46\u53ef\u4ee5\u8bbf\u95ee\u53e6\u5916\u4e00\u4e2a\u8fde\u63a5Internet\u7684\u540d\u79f0\u670d\u52a1\u5668&#xff0c;\u5219\u53ef\u80fd\u9700\u8981\u6267\u884c\u6b64\u64cd\u4f5c\u3002 \u6211\u4eec\u4e5f\u53ef\u4ee5\u6267\u884c\u6b64\u64cd\u4f5c&#xff0c;\u4ee5\u5c06\u5bf9\u5185\u90e8\u57df\u7684\u67e5\u8be2\u76f4\u63a5\u53d1\u9001\u5230\u5bf9\u8be5\u57df\u5177\u6709\u6743\u5a01\u6027\u7684\u540d\u79f0\u670d\u52a1\u5668\u3002<br \/>\n\u521b\u5efa\u4e00\u4e2aforward-zone\u5b50\u53e5\u4ee5\u6307\u5b9a\u8981\u8f6c\u53d1\u7684\u57df\u4ee5\u53ca\u5c06\u67e5\u8be2\u8f6c\u53d1\u5230\u7684DNS\u670d\u52a1\u5668\u3002 \u5c06\u540d\u79f0\u503c\u8bbe\u7f6e\u4e3a \u201c.\u201d \u8f6c\u53d1\u6240\u6709\u67e5\u8be2\u3002 \u4f7f\u7528forward-host\u9009\u9879\u901a\u8fc7\u4e3b\u673a\u540d\u6216\u4f7f\u7528forward-addr\u9009\u9879\u901a\u8fc7IP\u5730\u5740\u4e3a\u8f6c\u53d1\u533a\u57df\u6307\u5b9aDNS\u670d\u52a1\u5668\u3002<\/p>\n<p>forward-zone:<br \/>\nname: <span class=\"token string\">&#034;.&#034;<\/span><br \/>\nforward-addr: <span class=\"token number\">10.1<\/span>.8.10<\/p>\n<p>&#xff08;\u53ef\u9009&#xff09; \u5728server\u5b50\u53e5\u4e2d&#xff0c;\u5b9a\u4e49\u4e0d\u9700\u8981DNSSEC\u9a8c\u8bc1\u7684\u57df\u3002<br \/>\n\u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;Unbound\u6267\u884cDNSSEC\u9a8c\u8bc1\u6536\u5230\u7684\u6240\u6709DNS\u54cd\u5e94\u3002 \u901a\u5e38&#xff0c;\u6211\u4eec\u5e0c\u671b\u5b83\u6267\u884c\u6b64\u64cd\u4f5c&#xff0c;\u4f46\u662f\u6709\u65f6\u6211\u4eec\u7684\u5185\u90e8\u57df\u672a\u6b63\u786e\u7b7e\u540d&#xff0c;\u56e0\u6b64\u65e0\u6cd5\u901a\u8fc7DNSSEC\u9a8c\u8bc1\u3002 server\u5b50\u53e5\u4e2d\u7684domain-insecure \u9009\u9879\u6307\u5b9a\u5e94\u8df3\u8fc7DNSSEC\u9a8c\u8bc1\u7684\u57df\u3002<\/p>\n<p>domain-insecure: zyy<\/p>\n<ul>\n<li>harden-dnssec-stripped \u8bbe\u7f6e\u4e3ano&#xff0c;\u63a7\u5236\u6240\u6709\u57df\u540d\u90fd\u4e0d\u8fdb\u884cDNSSEC\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n<h5>\u542f\u7528\u670d\u52a1\u5668<\/h5>\n<p><span class=\"token comment\"># \u6d4b\u8bd5\u914d\u7f6e\u6587\u4ef6\u8bed\u6cd5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># unbound-checkconf<\/span><br \/>\nunbound-checkconf: no errors <span class=\"token keyword\">in<\/span> \/etc\/unbound\/unbound.conf<br \/>\n<span class=\"token comment\"># \u542f\u7528\u5e76\u542f\u52a8\u670d\u52a1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># systemctl enable unbound &#8211;now<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># systemctl status unbound<\/span><br \/>\n<span class=\"token comment\"># \u8bbe\u7f6e\u9632\u706b\u5899<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># firewall-cmd &#8211;add-service&#061;dns<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># firewall-cmd &#8211;add-service&#061;dns &#8211;permanent<\/span><\/p>\n<h5>\u5ba2\u6237\u7aef\u6d4b\u8bd5<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.20 client.zyy<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.20 student.zyy<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.20 dns.zyy<\/span><\/p>\n<h5>\u7ba1\u7406\u7f13\u5b58<\/h5>\n<h6>\u5bfc\u51fa\u7f13\u5b58<\/h6>\n<p>\u5728\u5bf9DNS\u95ee\u9898\u8fdb\u884c\u6545\u969c\u6392\u9664\u65f6&#xff0c;\u4f8b\u5982\u8fc7\u65f6\u7684\u8d44\u6e90\u8bb0\u5f55\u5bfc\u81f4\u7684\u95ee\u9898&#xff0c;\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u7684\u7ba1\u7406\u5458\u53ef\u80fd\u9700\u8981\u8f6c\u50a8\u7f13\u5b58\u6570\u636e\u3002<\/p>\n<p><span class=\"token comment\">#\u5bfc\u51fa\u7f13\u5b58\u5230stdout<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># unbound-control dump_cache<\/span><br \/>\nSTART_RRSET_CACHE<br \/>\n<span class=\"token punctuation\">;<\/span>rrset <span class=\"token number\">3597<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">0<\/span> <span class=\"token number\">8<\/span> <span class=\"token number\">3<\/span><br \/>\ndns.zyy. <span class=\"token number\">3597<\/span> IN A <span class=\"token number\">10.1<\/span>.8.10<br \/>\n<span class=\"token punctuation\">;<\/span>rrset <span class=\"token number\">3563<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">0<\/span> <span class=\"token number\">8<\/span> <span class=\"token number\">3<\/span><br \/>\nstudent.zyy. <span class=\"token number\">3563<\/span> IN CNAME client.zyy.<br \/>\n<span class=\"token punctuation\">;<\/span>rrset <span class=\"token number\">3557<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">0<\/span> <span class=\"token number\">7<\/span> <span class=\"token number\">3<\/span><br \/>\nzyy. <span class=\"token number\">3557<\/span> IN NS dns.zyy.<br \/>\n<span class=\"token punctuation\">;<\/span>rrset <span class=\"token number\">3557<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">0<\/span> <span class=\"token number\">8<\/span> <span class=\"token number\">3<\/span><br \/>\nclient.zyy. <span class=\"token number\">3557<\/span> IN A <span class=\"token number\">10.1<\/span>.8.11<br \/>\nEND_RRSET_CACHE<br \/>\nSTART_MSG_CACHE<br \/>\nmsg client.zyy. IN A <span class=\"token number\">33152<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">3557<\/span> <span class=\"token number\">3<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">1<\/span><br \/>\nclient.zyy. IN A <span class=\"token number\">0<\/span><br \/>\nzyy. IN NS <span class=\"token number\">0<\/span><br \/>\ndns.zyy. IN A <span class=\"token number\">0<\/span><br \/>\nmsg student.zyy. IN A <span class=\"token number\">33152<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">3557<\/span> <span class=\"token number\">3<\/span> <span class=\"token number\">2<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">1<\/span><br \/>\nstudent.zyy. IN CNAME <span class=\"token number\">0<\/span><br \/>\nclient.zyy. IN A <span class=\"token number\">0<\/span><br \/>\nzyy. IN NS <span class=\"token number\">0<\/span><br \/>\ndns.zyy. IN A <span class=\"token number\">0<\/span><br \/>\nmsg dns.zyy. IN A <span class=\"token number\">33152<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">3597<\/span> <span class=\"token number\">3<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">1<\/span> <span class=\"token number\">0<\/span><br \/>\ndns.zyy. IN A <span class=\"token number\">0<\/span><br \/>\nzyy. IN NS <span class=\"token number\">0<\/span><br \/>\nEND_MSG_CACHE<br \/>\nEOF<br \/>\n<span class=\"token comment\">#\u5bfc\u51fa\u7f13\u5b58\u5230\u6587\u4ef6<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># unbound-control dump_cache &gt; dns_dump<\/span><\/p>\n<h6>\u6e05\u7a7a\u7f13\u5b58<\/h6>\n<p>\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u7684\u7ba1\u7406\u5458\u53ef\u80fd\u8fd8\u9700\u8981\u5b9a\u671f\u4ece\u7f13\u5b58\u4e2d\u6e05\u9664\u8fc7\u65f6\u7684\u8d44\u6e90\u8bb0\u5f55\u3002 \u7f13\u5b58\u4e2d\u9519\u8bef\u548c\u8fc7\u65f6\u7684\u8d44\u6e90\u8bb0\u5f55\u4f1a\u963b\u6b62\u66f4\u6b63\u7684\u5bf9\u5e94\u9879\u5bf9\u5ba2\u6237\u7aef\u53ef\u7528&#xff0c;\u76f4\u5230\u8d44\u6e90\u8bb0\u5f55\u4e0a\u7684TTL\u8fc7\u671f\u4e3a\u6b62\u3002 \u6211\u4eec\u53ef\u4ee5\u6e05\u9664\u7f13\u5b58\u4e2d\u8fc7\u65f6\u7684\u8bb0\u5f55&#xff0c;\u800c\u4e0d\u5fc5\u7b49\u5f85TTL\u8fc7\u671f\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># unbound-control flush student.zyy<\/span><\/p>\n<p>\u6e05\u9664zone\u4e2d\u6240\u6709\u8bb0\u5f55<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># unbound-control flush_zone zyy<\/span><\/p>\n<h6>\u5bfc\u5165\u7f13\u5b58<\/h6>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># unbound-control load_cache &lt; dns_dump<\/span><\/p>\n<h4>\u914d\u7f6e\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668-Dnsmasq(\u6269\u5c55-\u81ea\u5b66)<\/h4>\n<h5>Dnsmasq \u4ecb\u7ecd<\/h5>\n<p>Dnsmasq \u662f\u4e00\u4e2a\u96c6 DNS \u7f13\u5b58\u3001DHCP \u3001DHCP \u4e2d\u7ee7\u3001PXE\u4e00\u4f53\u7684\u8f6f\u4ef6\u3002\u591a\u4e2a\u529f\u80fd\u5373\u53ef\u4ee5\u540c\u65f6\u5b9e\u65bd&#xff0c;\u4e5f\u53ef\u4ee5\u72ec\u7acb\u5b9e\u65bd\u3002<\/p>\n<ul>\n<li>\n<p>\u4f5c\u4e3a DNS \u7f13\u5b58\u670d\u52a1\u5668&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u7f13\u5b58 DNS \u8bf7\u6c42\u6765\u63d0\u9ad8\u5bf9\u8bbf\u95ee\u8fc7\u7684\u7f51\u5740\u7684\u8fde\u63a5\u901f\u5ea6\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f5c\u4e3a DHCP \u670d\u52a1\u5668&#xff0c;\u53ef\u7528\u4e8e\u4e3a\u5c40\u57df\u7f51\u7535\u8111\u5206\u914d\u5185\u7f51ip\u5730\u5740\u548c\u63d0\u4f9b\u8def\u7531<\/p>\n<\/li>\n<li>\n<p>\u4f5c\u4e3a DHCP \u4e2d\u7ee7\u670d\u52a1\u5668&#xff0c;\u4e3a\u5c40\u57df\u7f51\u63d0\u4f9b DHCP \u4e2d\u7ee7\u670d\u52a1<\/p>\n<\/li>\n<li>\n<p>\u4f5c\u4e3a TFTP \u670d\u52a1\u5668&#xff0c;\u63d0\u4f9b\u7f51\u7edc PXE \u7f51\u7edc\u5f15\u5bfc\u3002<\/p>\n<\/li>\n<\/ul>\n<p>Dnsmasq \u8f7b\u91cf\u4e14\u6613\u914d\u7f6e&#xff0c;\u9002\u7528\u4e8e\u4e2a\u4eba\u7528\u6237\u6216\u5c0f\u578b\u7f51\u7edc\u3002<br \/>\n\u672c\u90e8\u5206\u4e3b\u8981\u8bb2\u89e3 DNS \u7f13\u5b58\u529f\u80fd\u3002<\/p>\n<h5>DNS \u7528\u9014<\/h5>\n<li>\n<p>\u5e94\u5bf9ISP\u7684DNS\u52ab\u6301&#xff08;\u53cdDNS\u52ab\u6301&#xff09;&#xff0c;\u8f93\u5165\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u57df\u540d&#xff0c;\u6b63\u5e38\u7684\u60c5\u51b5\u4e0b\u6d4f\u89c8\u5668\u662f\u663e\u793a\u65e0\u6cd5\u8fde\u63a5&#xff0c;DNS\u52ab\u6301\u4f1a\u8df3\u8f6c\u5230\u4e00\u4e2a\u5e7f\u544a\u9875\u9762\u3002\u5148\u968f\u4fbfnslookup \u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u57df\u540d&#xff0c;\u770b\u770bISP\u5546\u52ab\u6301\u7684IP\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u667a\u80fdDNS\u52a0\u5feb\u89e3\u6790\u901f\u5ea6&#xff0c;\u6253\u5f00\/etc\/dnsmasq.conf\u6587\u4ef6&#xff0c;server&#061;\u540e\u9762\u53ef\u4ee5\u6dfb\u52a0\u6307\u5b9a\u7684DNS&#xff0c;\u4f8b\u5982\u56fd\u5185\u5916\u4e0d\u540c\u7684\u7f51\u7ad9\u4f7f\u7528\u4e0d\u540c\u7684DNS\u3002<\/p>\n<p><span class=\"token comment\"># \u56fd\u5185\u6307\u5b9aDNS<\/span><br \/>\n<span class=\"token assign-left variable\">server<\/span><span class=\"token operator\">&#061;<\/span>\/cn\/114.114.114.114<br \/>\n<span class=\"token assign-left variable\">server<\/span><span class=\"token operator\">&#061;<\/span>\/taobao.com\/114.114.114.114<br \/>\n<span class=\"token assign-left variable\">server<\/span><span class=\"token operator\">&#061;<\/span>\/taobaocdn.com\/114.114.114.114<br \/>\n<span class=\"token comment\"># \u56fd\u5916\u6307\u5b9aDNS<\/span><br \/>\n<span class=\"token assign-left variable\">server<\/span><span class=\"token operator\">&#061;<\/span>\/google.com\/8.8.8.8<\/p>\n<\/li>\n<li>\n<p>\u5c4f\u853d\u7f51\u9875\u5e7f\u544a&#xff0c;\u5c06\u6307\u5e7f\u544a\u7684URL\u6307\u5b9a127\u8fd9\u4e2aIP&#xff0c;\u5c31\u53ef\u4ee5\u5c06\u7f51\u9875\u4e0a\u8ba8\u538c\u7684\u5e7f\u544a\u7ed9\u53bb\u6389\u4e86\u3002<\/p>\n<p><span class=\"token assign-left variable\">address<\/span><span class=\"token operator\">&#061;<\/span>\/ad.youku.com\/127.0.0.1<br \/>\n<span class=\"token assign-left variable\">address<\/span><span class=\"token operator\">&#061;<\/span>\/ad.iqiyi.com\/127.0.0.1<\/p>\n<\/li>\n<li>\n<p>\u6307\u5b9a\u57df\u540d\u89e3\u6790\u5230\u7279\u5b9a\u7684IP\u4e0a\u3002\u8fd9\u4e2a\u529f\u80fd\u53ef\u4ee5\u8ba9\u4f60\u63a7\u5236\u4e00\u4e9b\u7f51\u7ad9\u7684\u8bbf\u95ee&#xff0c;\u975e\u6cd5\u7684DNS\u5c31\u7ecf\u5e38\u628a\u4e00\u4e9b\u6b63\u89c4\u7684\u7f51\u7ad9\u89e3\u6790\u5230\u4e0d\u6b63\u786eIP\u4e0a\u3002<\/p>\n<p><span class=\"token assign-left variable\">address<\/span><span class=\"token operator\">&#061;<\/span>\/freehao123.com\/123.123.123.123<\/p>\n<\/li>\n<li>\n<p>\u7ba1\u7406\u63a7\u5236\u5185\u7f51DNS&#xff0c;\u9996\u5148\u5c06\u5c40\u57df\u7f51\u4e2d\u7684\u6240\u6709\u7684\u8bbe\u5907\u7684\u672c\u5730DNS\u8bbe\u7f6e\u4e3a\u5df2\u7ecf\u5b89\u88c5Dnsmasq\u7684\u670d\u52a1\u5668IP \u5730\u5740&#xff0c;\u7136\u540e\u914d\u7f6eDnsmasq\u7684\u670d\u52a1\u5668Hosts\u6587\u4ef6&#xff1a;\/etc\/hosts&#xff0c;\u6307\u5b9a\u57df\u540d\u5230\u7279\u5b9a\u7684IP\u4e2d\u3002\u4f8b\u5982\u60f3\u8ba9\u5c40\u57df\u7f51\u4e2d\u7684\u6240\u6709\u7528\u6237\u8bbf\u95eewww.freehao123.com\u65f6\u8df3\u8f6c\u5230192.168.0.2&#xff0c;\u6dfb\u52a0&#xff1a;<\/p>\n<p><span class=\"token number\">192.168<\/span>.0.2 www.freehao123.com<\/p>\n<\/li>\n<h5>dnsmasq \u89e3\u6790\u6d41\u7a0b<\/h5>\n<li>\n<p>dnsmasq\u5148\u53bb\u89e3\u6790 \/etc\/hosts \u6587\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u6790\/etc\/dnsmasq.d\/\u4e0b\u7684*.conf\u6587\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>\u540e\u89e3\u6790 \/etc\/dnsmasq.conf\u3002<\/p>\n<p>\u5982\u679c\u4e0d\u60f3\u7528 \/etc\/hosts \u6587\u4ef6\u505a\u89e3\u6790&#xff0c;\u5728 \/etc\/dnsmasq.conf \u4e2d\u52a0\u5165 no-hosts \u8bed\u53e5\u3002<br \/>\n\u5982\u679c\u4e0d\u60f3\u901a\u8fc7\/etc\/resolv.conf \u6587\u4ef6\u4e2dDNS\u67e5\u8be2&#xff0c;\u5728 \/etc\/dnsmasq.conf \u4e2d\u52a0\u5165 no-reslov \u8bed\u53e5\u3002<\/p>\n<\/li>\n<h5>dnsmasq \u5b89\u88c5<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># yum install -y dnsmasq<\/span><\/p>\n<h5>dnsmasq \u914d\u7f6e<\/h5>\n<p>\/etc\/dnsmasq.conf \u914d\u7f6e\u6587\u4ef6\u63d0\u4f9b\u5927\u91cf\u7684\u6ce8\u91ca\u8bf4\u660e\u3002<br \/>\n\u6bd4\u8f83\u91cd\u8981\u53c2\u6570&#xff1a;<\/p>\n<ul>\n<li>\n<p>resolv-file&#xff0c;\u5b9a\u4e49dnsmasq\u4ece\u54ea\u91cc\u83b7\u53d6\u4e0a\u6e38DNS\u670d\u52a1\u5668\u7684\u5730\u5740&#xff0c; \u9ed8\u8ba4\u503c \/etc\/resolv.conf\u3002<\/p>\n<\/li>\n<li>\n<p>strict-order&#xff0c;\u6307\u5b9a\u4e25\u683c\u6309\u7167 resolv-file \u6587\u4ef6\u4e2d\u7684\u987a\u5e8f\u4ece\u4e0a\u5230\u4e0b\u8fdb\u884cDNS\u89e3\u6790&#xff0c;\u76f4\u5230\u7b2c\u4e00\u4e2a\u89e3\u6790\u6210\u529f\u4e3a\u6b62\u3002<\/p>\n<\/li>\n<li>\n<p>listen-address&#xff0c;\u5b9a\u4e49dnsmasq\u76d1\u542c\u7684\u5730\u5740&#xff0c;\u9ed8\u8ba4\u662f\u76d1\u63a7\u672c\u673a\u7684\u6240\u6709\u7f51\u5361\u4e0a\u3002<\/p>\n<\/li>\n<li>\n<p>address&#xff0c;\u81ea\u5b9a\u4e49\u89e3\u6790A\u8bb0\u5f55&#xff0c;\u4f8b\u5982&#xff1a;address&#061;\/long.com\/192.168.115.10 \u8bbf\u95eelong.com\u65f6\u7684\u6240\u6709\u57df\u540d\u90fd\u4f1a\u88ab\u89e3\u6790\u6210192.168.115.10<\/p>\n<\/li>\n<li>\n<p>server&#xff0c;\u6307\u5b9a\u4f7f\u7528\u54ea\u4e2aDNS\u670d\u52a1\u5668\u8fdb\u884c\u89e3\u6790\u3002\u5bf9\u4e8e\u4e0d\u540c\u7684\u7f51\u7ad9\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u57df\u540d\u5bf9\u5e94\u89e3\u6790\u3002\u4f8b\u5982&#xff1a;server&#061;\/google.com\/8.8.8.8&#xff0c;\u8868\u793a google.com \u57df\u4e2d\u4e3b\u673a&#xff0c;\u4f7f\u7528 8.8.8.8 \u89e3\u6790\u3002<\/p>\n<\/li>\n<li>\n<p>bogus-nxdomain&#xff0c;\u5bf9\u4e8e\u4efb\u4f55\u88ab\u89e3\u6790\u5230\u6b64 IP \u7684\u57df\u540d&#xff0c;\u54cd\u5e94 NXDOMAIN&#xff0c;\u4ee5\u4f7f\u5176\u89e3\u6790\u5931\u6548\u3002\u53ef\u4ee5\u591a\u6b21\u6307\u5b9a&#xff0c;\u901a\u5e38\u7528\u4e8e\u5bf9\u4e8e\u8bbf\u95ee\u4e0d\u5b58\u5728\u7684\u57df\u540d&#xff0c;\u7981\u6b62\u5176\u8df3\u8f6c\u5230\u8fd0\u8425\u5546\u7684\u5e7f\u544a\u7ad9\u70b9\u3002<br \/>\n\u914d\u7f6e\u793a\u4f8b&#xff1a;<\/p>\n<p><span class=\"token assign-left variable\">server<\/span><span class=\"token operator\">&#061;<\/span>\/zyy\/10.1.8.10<\/p>\n<\/li>\n<\/ul>\n<h5>dnsmasq \u542f\u7528<\/h5>\n<p><span class=\"token comment\"># \u6d4b\u8bd5\u914d\u7f6e\u6587\u4ef6\u8bed\u6cd5<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dnsmasq -test<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># echo $?<\/span><br \/>\n<span class=\"token number\">0<\/span><br \/>\n<span class=\"token comment\"># \u542f\u7528\u5e76\u542f\u52a8\u670d\u52a1<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># systemctl enable dnsmasq &#8211;now<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># systemctl status dnsmasq<\/span><br \/>\n<span class=\"token comment\"># \u8bbe\u7f6e\u9632\u706b\u5899<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># firewall-cmd &#8211;add-service&#061;dns<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;cache ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># firewall-cmd &#8211;add-service&#061;dns &#8211;permanent<\/span><\/p>\n<h5>\u5ba2\u6237\u7aef\u6d4b\u8bd5<\/h5>\n<p><span class=\"token punctuation\">[<\/span>root&#064;client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.20 client.zyy<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.20 student.zyy<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.20 dns.zyy<\/span><\/p>\n<h5>\u4e09\u4e2a\u4ee5\u4e0a\u57df\u540d\u670d\u52a1\u5668<\/h5>\n<p>Linux \u5904\u7406 DNS \u8bf7\u6c42\u65f6\u6709\u4e2a\u9650\u5236&#xff0c;\u5728 resolv.conf \u4e2d \u591a\u53ea\u80fd\u914d\u7f6e\u4e09\u4e2a\u57df\u540d\u670d\u52a1\u5668\u3002\u4f5c\u4e3a\u4e00\u79cd\u53d8\u901a\u65b9\u6cd5&#xff0c;\u53ef\u4ee5\u5728 resolv.conf \u6587\u4ef6\u4e2d\u53ea\u4fdd\u7559 localhost \u4f5c\u4e3a\u57df\u540d\u670d\u52a1\u5668&#xff0c;\u7136\u540e\u4e3a\u5916\u90e8\u57df\u540d\u670d\u52a1\u5668\u53e6\u5916\u521b\u5efa resolv-file \u6587\u4ef6\u3002<\/p>\n<p><span class=\"token comment\"># \u4e3a dnsmasq \u65b0\u5efa\u4e00\u4e2a\u57df\u540d\u89e3\u6790\u6587\u4ef6<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dnsmasq ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vim \/etc\/resolv.dnsmasq.conf<\/span><br \/>\n<span class=\"token comment\"># Google&#039;s nameservers, for example<\/span><br \/>\nnameserver <span class=\"token number\">8.8<\/span>.8.8<br \/>\nnameserver <span class=\"token number\">8.8<\/span>.4.4<br \/>\n<span class=\"token comment\"># \u5f15\u7528\u4e0a\u8ff0\u6587\u4ef6<\/span><br \/>\n<span class=\"token punctuation\">[<\/span>root&#064;dnsmasq ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># vim \/etc\/dnsmasq.conf<\/span><br \/>\n<span class=\"token comment\"># \u6dfb\u52a0\u5982\u4e0b\u8bb0\u5f55<\/span><br \/>\nresolv-file<span class=\"token operator\">&#061;<\/span>\/etc\/resolv.dnsmasq.conf<\/p>\n<h4>\u6392\u6545 DNS \u95ee\u9898<\/h4>\n<p>\u540d\u79f0\u89e3\u6790\u4f9d\u8d56\u4ee5\u4e0b\u51e0\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u5ba2\u6237\u7aef\u4e0a\u547d\u540d\u89e3\u6790\u548c \/etc\/resolv.conf\u3002<\/li>\n<li>\u5ba2\u6237\u7aef\u4f7f\u7528\u7684\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u5411\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u63d0\u4f9b\u6570\u636e\u7684\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e\u3002<\/li>\n<li>\u7528\u4e8e\u5728\u8fd9\u4e9b\u7cfb\u7edf\u4e4b\u95f4\u901a\u4fe1\u7684\u7f51\u7edc\u914d\u7f6e\u3002<\/li>\n<\/ul>\n<h5>\u540d\u79f0\u89e3\u6790\u6765\u6e90\u987a\u5e8f<\/h5>\n<p>DNS\u662f\u7cfb\u7edf \u5e38\u7528\u7684\u540d\u79f0\u89e3\u6790\u65b9\u6cd5&#xff0c;\u56e0\u6b64&#xff0c;\u5f53\u53d1\u751f\u540d\u79f0\u89e3\u6790\u9519\u8bef\u65f6&#xff0c;\u901a\u5e38\u4f1a\u88ab\u6307\u8d23\u4e3aDNS\u3002 \u4f46\u8fd9\u4e0d\u662f\u7cfb\u7edf\u89e3\u6790\u4e3b\u673a\u540d\u548cIP\u5730\u5740\u7684\u552f\u4e00\u65b9\u6cd5\u3002\u5176\u4ed6\u540d\u79f0\u89e3\u6790\u65b9\u6cd5\u5305\u62ec\u672c\u5730\/etc\/hosts\u6587\u4ef6\u548cZeroconf\u7f51\u7edc\u3002<br \/>\n\u7cfb\u7edf \/etc\/nsswitch.conf \u6587\u4ef6\u4e2d\u7684hosts\u884c\u63a7\u5236\u67e5\u627e\u4e3b\u673a\u540d\u7684\u65b9\u5f0f\u3002<br \/>\n\u5178\u578b\u7684\u6761\u76ee\u5982\u4e0b\u6240\u793a&#xff1a;<\/p>\n<p>hosts: files dns myhostname<\/p>\n<p>\u9996\u5148\u5728\u672c\u5730\/etc\/hosts\u6587\u4ef6\u4e2d\u67e5\u627e&#xff0c;\u7136\u540e\u6267\u884cDNS\u67e5\u627e&#xff0c; \u540e\u4f7f\u7528nss-myhostname\u67e5\u627e\u672c\u5730\u914d\u7f6e\u7684\u7cfb\u7edf\u4e3b\u673a\u540d\u3002<br \/>\n\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528glibc-common\u8f6f\u4ef6\u5305\u4e2d\u7684getent\u547d\u4ee4&#xff0c;\u6309\u7167\/etc\/nsswitch.conf\u6240\u6307\u5b9a\u7684\u4e3b\u673a\u540d\u79f0\u89e3\u6790\u987a\u5e8f\u6267\u884c\u540d\u79f0\u89e3\u6790\u3002\u8fd9\u79cd\u89e3\u6790\u8fc7\u7a0b\u4e5f\u662f\u5927\u591a\u6570\u5e94\u7528\u7a0b\u5e8f\u89e3\u6790\u7684\u8fc7\u7a0b\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;client ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># getent hosts server.zyy<\/span><br \/>\n<span class=\"token number\">10.1<\/span>.8.20 server.zyy server<\/p>\n<h5>\u8c03\u67e5DNS\u95ee\u9898<\/h5>\n<h6>dig\u5de5\u5177<\/h6>\n<p>dig\u662f\u8c03\u67e5DNS\u95ee\u9898\u7684 \u4f73\u5de5\u5177\u4e4b\u4e00\u3002 dig\u547d\u4ee4\u6267\u884cDNS\u67e5\u627e&#xff0c;\u5e76\u63d0\u4f9b\u8be6\u7ec6\u7684\u54cd\u5e94&#xff0c;\u5176\u4e2d\u5305\u62ec\u6709\u5173\u8bf7\u6c42\u548c\u7ed3\u679c\u7684\u8bca\u65ad\u4fe1\u606f\u3002<br \/>\n\u5728\u4ee5\u4e0b\u793a\u4f8b\u4e2d&#xff0c;\u5c06\u4f7f\u7528\u540d\u79f0\u6765\u8c03\u7528dig\u8fdb\u884c\u89e3\u6790\u3002 \u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;\u5b83\u5c06\u67e5\u627e\u8be5\u540d\u79f0\u7684A\u8bb0\u5f55\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig servera.zyy<\/span><br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> DiG <span class=\"token number\">9.11<\/span>.4-P2-RedHat-9.11.4-26.P2.el8 <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> servera.lab.zyy<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> global options: &#043;cmd<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Got answer:<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> &#8211;<span class=\"token operator\">&gt;&gt;<\/span>HEADER<span class=\"token operator\">&lt;&lt;-<\/span> opcode: QUERY, status: NOERROR, id: <span class=\"token number\">7589<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> flags: qr aa rd ra<span class=\"token punctuation\">;<\/span> QUERY: <span class=\"token number\">1<\/span>, ANSWER: <span class=\"token number\">1<\/span>, AUTHORITY: <span class=\"token number\">0<\/span>, ADDITIONAL: <span class=\"token number\">1<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> OPT PSEUDOSECTION:<br \/>\n<span class=\"token punctuation\">;<\/span> EDNS: version: <span class=\"token number\">0<\/span>, flags:<span class=\"token punctuation\">;<\/span> udp: <span class=\"token number\">4096<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> QUESTION SECTION:<br \/>\n<span class=\"token punctuation\">;<\/span>servera.lab.zyy. IN A<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> ANSWER SECTION:<br \/>\nservera.lab.zyy. <span class=\"token number\">3600<\/span> IN A <span class=\"token number\">172.25<\/span>.250.10<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Query time: <span class=\"token number\">1<\/span> msec<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> SERVER: <span class=\"token number\">10.1<\/span>.8.20<span class=\"token comment\">#53(10.1.8.20)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> WHEN: Fri Mar 05 <span class=\"token number\">17<\/span>:55:55 CST <span class=\"token number\">2021<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> MSG SIZE rcvd: <span class=\"token number\">68<\/span><\/p>\n<p>\u8f93\u51fa\u8bf4\u660e&#xff1a;\u7ed3\u679c\u8868\u660e\u8bf7\u6c42\u7684\u72b6\u6001\u4e3aNOERROR&#xff0c;\u8fd9\u610f\u5473\u7740\u5b83\u5df2\u6210\u529f\u5b8c\u6210\u3002 \u95ee\u9898\u90e8\u5206\u91cd\u8ff0\u67e5\u8be2&#xff0c;\u56de\u7b54\u90e8\u5206\u663e\u793a\u8fd4\u56de\u7684\u8d44\u6e90\u8bb0\u5f55&#xff1a;servera.lab.zyy\u7684A\u8bb0\u5f55\u6307\u5411172.25.250.10&#xff0c;\u5e76\u5177\u6709\u751f\u5b58\u65f6\u95f4<br \/>\n&#xff08;TTL&#xff09;&#xff0c;\u7f13\u5b583600\u79d2\u3002<br \/>\n\u6211\u4eec\u8fd8\u53ef\u4ee5\u6307\u5b9a\u5176\u4ed6\u8d44\u6e90\u8bb0\u5f55\u4ee5\u8fdb\u884c\u67e5\u627e\u3002 \u4f8b\u5982&#xff0c;\u4ee5\u4e0b\u547d\u4ee4\u6307\u5b9a\u6211\u4eec\u8981\u67e5\u627e\u540c\u4e00\u4e3b\u673a\u7684AAAA\u8bb0\u5f55\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> AAAA servera.lab.zyy<br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> DiG <span class=\"token number\">9.11<\/span>.4-RedHat-9.11.4-26.P2.el8 <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> AAAA servera.lab.zyy<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> global options: &#043;cmd<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Got answer:<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> &#8211;<span class=\"token operator\">&gt;&gt;<\/span>HEADER<span class=\"token operator\">&lt;&lt;-<\/span> opcode: QUERY, status: NOERROR, id: <span class=\"token number\">61178<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> flags: qr aa rd ra<span class=\"token punctuation\">;<\/span> QUERY: <span class=\"token number\">1<\/span>, ANSWER: <span class=\"token number\">2<\/span>, AUTHORITY: <span class=\"token number\">0<\/span>, ADDITIONAL: <span class=\"token number\">1<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> OPT PSEUDOSECTION:<br \/>\n<span class=\"token punctuation\">;<\/span> EDNS: version: <span class=\"token number\">0<\/span>, flags:<span class=\"token punctuation\">;<\/span> udp: <span class=\"token number\">4096<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> QUESTION SECTION:<br \/>\n<span class=\"token punctuation\">;<\/span>servera.lab.zyy. IN AAAA<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> ANSWER SECTION:<br \/>\nservera.lab.zyy. <span class=\"token number\">3600<\/span> IN AAAA fde2:6494:1e09:1::a<br \/>\nservera.lab.zyy. <span class=\"token number\">3600<\/span> IN AAAA fde2:6494:1e09:2::a<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Query time: <span class=\"token number\">0<\/span> msec<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> SERVER: <span class=\"token number\">10.1<\/span>.8.20<span class=\"token comment\">#53(10.1.8.20)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> WHEN: Wed May <span class=\"token number\">13<\/span> <span class=\"token number\">15<\/span>:22:01 CDT <span class=\"token number\">2020<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> MSG SIZE rcvd: <span class=\"token number\">101<\/span><\/p>\n<p>\u672c\u793a\u4f8b\u4e3a\u4e3b\u673a\u8fd4\u56de\u4e86\u4e24\u4e2aAAAA\u8bb0\u5f55\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig AAAA servera.lab.zyy<\/span><br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> DiG <span class=\"token number\">9.11<\/span>.4-P2-RedHat-9.11.4-26.P2.el8 <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> AAAA servera.lab.zyy<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> global options: &#043;cmd<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Got answer:<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> &#8211;<span class=\"token operator\">&gt;&gt;<\/span>HEADER<span class=\"token operator\">&lt;&lt;-<\/span> opcode: QUERY, status: NOERROR, id: <span class=\"token number\">38275<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> flags: qr aa rd ra<span class=\"token punctuation\">;<\/span> QUERY: <span class=\"token number\">1<\/span>, ANSWER: <span class=\"token number\">0<\/span>, AUTHORITY: <span class=\"token number\">0<\/span>, ADDITIONAL: <span class=\"token number\">1<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> OPT PSEUDOSECTION:<br \/>\n<span class=\"token punctuation\">;<\/span> EDNS: version: <span class=\"token number\">0<\/span>, flags:<span class=\"token punctuation\">;<\/span> udp: <span class=\"token number\">4096<\/span><br \/>\n<span class=\"token punctuation\">;<\/span> COOKIE: d6f0231ceac57242ebe19dc4604200e983840c3f1f9a3b75 <span class=\"token punctuation\">(<\/span>good<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> QUESTION SECTION:<br \/>\n<span class=\"token punctuation\">;<\/span>servera.lab.zyy. IN AAAA<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Query time: <span class=\"token number\">16<\/span> msec<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> SERVER: <span class=\"token number\">10.1<\/span>.8.20<span class=\"token comment\">#53(10.1.8.20)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> WHEN: Fri Mar 05 <span class=\"token number\">17<\/span>:59:05 CST <span class=\"token number\">2021<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> MSG SIZE rcvd: <span class=\"token number\">80<\/span><\/p>\n<p>\u5982\u679c\u7f3a\u5c11ANSWER SECTION\u5e76\u4e14ANSWER\u4e3a0&#xff0c;\u5219\u67e5\u627e\u627e\u4e0d\u5230\u8be5\u540d\u79f0\u7684\u8be5\u7c7b\u578b\u7684\u8d44\u6e90\u8bb0\u5f55\u3002<br \/>\n\u901a\u5e38&#xff0c;dig\u4f7f\u7528\/etc\/resolv.conf\u4e2d\u5217\u51fa\u7684DNS\u540d\u79f0\u670d\u52a1\u5668\u3002 \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5728\u547d\u4ee4\u884c\u4e0a\u6dfb\u52a0\u4e00\u4e2a&#064;&#xff0c;\u7136\u540e\u52a0\u4e0a\u670d\u52a1\u5668\u7684\u540d\u79f0\u6765\u6307\u5b9a\u5176\u4ed6\u540d\u79f0\u670d\u52a1\u5668\u3002<br \/>\n\u4ee5\u4e0b\u793a\u4f8b\u5728classroom.zyy\u4e0a\u67e5\u627ezyy\u7684MX\u8bb0\u5f55\u3002 \u7ed3\u679c\u8fd8\u62a5\u544a\u6709\u5173\u540d\u79f0\u670d\u52a1\u5668\u7684\u4e00\u4e9b\u76f8\u5173\u4fe1\u606f&#xff0c;\u7f13\u5b58\u540d\u79f0\u670d\u52a1\u5668\u4e5f\u5c06\u7f13\u5b58\u8fd9\u4e9b\u4fe1\u606f\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>root&#064;server ~<span class=\"token punctuation\">]<\/span><span class=\"token comment\"># dig &#064;10.1.8.20 mx zyy<\/span><br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> DiG <span class=\"token number\">9.11<\/span>.4-P2-RedHat-9.11.4-26.P2.el8 <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> &#064;10.1.8.20 mx zyy<br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span> server found<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> global options: &#043;cmd<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Got answer:<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> &#8211;<span class=\"token operator\">&gt;&gt;<\/span>HEADER<span class=\"token operator\">&lt;&lt;-<\/span> opcode: QUERY, status: NOERROR, id: <span class=\"token number\">15684<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> flags: qr aa rd ra<span class=\"token punctuation\">;<\/span> QUERY: <span class=\"token number\">1<\/span>, ANSWER: <span class=\"token number\">1<\/span>, AUTHORITY: <span class=\"token number\">1<\/span>, ADDITIONAL: <span class=\"token number\">2<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> OPT PSEUDOSECTION:<br \/>\n<span class=\"token punctuation\">;<\/span> EDNS: version: <span class=\"token number\">0<\/span>, flags:<span class=\"token punctuation\">;<\/span> udp: <span class=\"token number\">4096<\/span><br \/>\n<span class=\"token punctuation\">;<\/span> COOKIE: 2af577a35598d62d58d9f5e7604201ebf3383377df6034f6 <span class=\"token punctuation\">(<\/span>good<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> QUESTION SECTION:<br \/>\n<span class=\"token punctuation\">;<\/span>zyy. IN MX<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> ANSWER SECTION:<br \/>\nzyy. <span class=\"token number\">86400<\/span> IN MX <span class=\"token number\">10<\/span> dns.zyy.<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> AUTHORITY SECTION:<br \/>\nzyy. <span class=\"token number\">86400<\/span> IN NS dns.zyy.<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> ADDITIONAL SECTION:<br \/>\ndns.zyy. <span class=\"token number\">86400<\/span> IN A <span class=\"token number\">172.25<\/span>.254.254<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Query time: <span class=\"token number\">3<\/span> msec<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> SERVER: <span class=\"token number\">10.1<\/span>.8.20<span class=\"token comment\">#53(10.1.8.20)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> WHEN: Fri Mar 05 <span class=\"token number\">18<\/span>:03:23 CST <span class=\"token number\">2021<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> MSG SIZE rcvd: <span class=\"token number\">124<\/span><\/p>\n<p>\u5982\u679cgetent\u7684\u7ed3\u679c\u4e0edig\u4ea7\u751f\u7684\u7ed3\u679c\u4e0d\u540c&#xff0c;\u5219\u53ef\u4ee5\u6e05\u695a\u5730\u8868\u660e&#xff0c;\u662fDNS\u4ee5\u5916\u7684\u5176\u4ed6\u539f\u56e0\u5bfc\u81f4\u4e86\u610f\u5916\u7684\u540d\u79f0\u89e3\u6790\u7ed3\u679c\u3002<\/p>\n<h6>\u7f51\u7edc\u8fde\u63a5\u95ee\u9898<\/h6>\n<p>\u4e3a\u4e86\u4f7fDNS\u540d\u79f0\u89e3\u6790\u6b63\u5e38\u5de5\u4f5c&#xff0c;\u5ba2\u6237\u7aef\u5fc5\u987b\u80fd\u591f\u4e0e\u89e3\u6790\u540d\u79f0\u670d\u52a1\u5668\u6b63\u5e38\u901a\u884c&#xff0c;\u89e3\u6790\u540d\u79f0\u670d\u52a1\u5668\u4e0e\u5176\u4ed6\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u6b63\u5e38\u901a\u4fe1\u3002<br \/>\n\u4f8b\u5982&#xff0c;\u5982\u679cdig\u65e0\u6cd5\u5230\u8fbe\/etc\/resolv.conf\u4e2d\u7684\u4efb\u4f55DNS\u670d\u52a1\u5668&#xff0c;\u5219\u4f1a\u53d1\u751f\u4ee5\u4e0b\u9519\u8bef\u3002 \u8fd9\u53ef\u80fd\u662f\u56e0\u4e3a\u540d\u79f0\u670d\u52a1\u5668\u5df2\u5173\u95ed&#xff0c;\u5ba2\u6237\u7aef\u4e0a\u7684\u7f51\u7edc\u6216\u9632\u706b\u5899\u51fa\u73b0\u95ee\u9898\u6216\/etc\/resolv.conf\u7684\u914d\u7f6e\u9519\u8bef\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> A zyy<br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> DiG <span class=\"token number\">9.11<\/span>.4-P2-RedHat-9.11.4-26.P2.el8 <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> A zyy<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> global options: &#043;cmd<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> connection timed out<span class=\"token punctuation\">;<\/span> no servers could be reached<\/p>\n<p>\u5982\u679c\u6d89\u53ca\u9632\u706b\u5899&#xff0c;\u5219\u5fc5\u987b\u786e\u4fdd\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e0e\u540d\u79f0\u670d\u52a1\u5668UDP\u548cTCP\u4e0a53\u7aef\u53e3\u901a\u4fe1\u3002 \u5982\u679c\u540d\u79f0\u670d\u52a1\u5668\u53ea\u5141\u8bb8\u7aef\u53e353\/UDP\u4e0a\u7684\u6d41\u91cf\u901a\u8fc7&#xff0c;\u4e0d\u5141\u8bb8\u7aef\u53e353\/TCP\u4e0a\u7684\u6d41\u91cf\u901a\u8fc7&#xff0c;\u5219\u5f53\u54cd\u5e94\u7684\u5927\u5c0f\u8d85\u8fc7512\u5b57\u8282&#xff08;\u652f\u6301DNS\u6269\u5c55\u673a\u5236&#xff08;EDNS&#xff09;\u7684\u670d\u52a1\u5668\u4e3a4096\u5b57\u8282&#xff09;\u65f6&#xff0c;\u89e3\u6790\u5668\u5fc5\u987b\u4eceUDP\u5207\u6362\u5230TCP\u5e76\u91cd\u8bd5\u67e5\u8be2&#xff0c;\u6211\u4eec\u4f1a\u770b\u5230\u622a\u65ad\u901a\u77e5\u4ee5\u53ca\u4e3b\u673a\u65e0\u6cd5\u8bbf\u95ee\u7684\u9519\u8bef&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> &#064;dns.zyy A labhost1.zyy<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Truncated, retrying <span class=\"token keyword\">in<\/span> TCP mode.<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Connection to <span class=\"token number\">172.25<\/span>.1.11<span class=\"token comment\">#53(172.25.1.11) for labhost1.zyy failed:<\/span><br \/>\n<span class=\"token function\">host<\/span> unreachable.<\/p>\n<p>dig\u547d\u4ee4\u53ef\u4ee5\u6307\u5b9atcp\u6216vc\u9009\u9879&#xff0c;\u5f3a\u5236\u4f7f\u7528TCP\u67e5\u8be2\u8bb0\u5f55&#xff0c;\u800c\u4e0d\u662f\u9ed8\u8ba4\u884c\u4e3a&#xff1a;\u5148\u4f7f\u7528UDP&#xff0c;\u7136\u540e\u4ec5\u5bf9\u4e8e\u5927\u54cd\u5e94\u624d\u4f7f\u7528TCP\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> &#043;tcp A zyy<br \/>\nNAL: <span class=\"token number\">2<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> OPT PSEUDOSECTION:<br \/>\n<span class=\"token punctuation\">;<\/span> EDNS: version: <span class=\"token number\">0<\/span>, flags:<span class=\"token punctuation\">;<\/span> udp: <span class=\"token number\">4096<\/span><br \/>\n<span class=\"token punctuation\">;<\/span> COOKIE: 2af577a35598d62d58d9f5e7604201ebf3383377df6034f6 <span class=\"token punctuation\">(<\/span>good<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> QUESTION SECTION:<br \/>\n<span class=\"token punctuation\">;<\/span>zyy. IN MX<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> ANSWER SECTION:<br \/>\nzyy. <span class=\"token number\">86400<\/span> IN MX <span class=\"token number\">10<\/span> dns.zyy.<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> AUTHORITY SECTION:<br \/>\nzyy. <span class=\"token number\">86400<\/span> IN NS dns.zyy.<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> ADDITIONAL SECTION:<br \/>\ndns.zyy. <span class=\"token number\">86400<\/span> IN A <span class=\"token number\">172.25<\/span>.254.254<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Query time: <span class=\"token number\">3<\/span> msec<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> SERVER: <span class=\"token number\">10.1<\/span>.8.20<span class=\"token comment\">#53(10.1.8.20)<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> WHEN: Fri Mar 05 <span class=\"token number\">18<\/span>:03:23 CST <span class=\"token number\">2021<\/span><br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> MSG SIZE rcvd: <span class=\"token number\">124<\/span><\/p>\n<p>\u5982\u679cgetent\u7684\u7ed3\u679c\u4e0edig\u4ea7\u751f\u7684\u7ed3\u679c\u4e0d\u540c&#xff0c;\u5219\u53ef\u4ee5\u6e05\u695a\u5730\u8868\u660e&#xff0c;\u662fDNS\u4ee5\u5916\u7684\u5176\u4ed6\u539f\u56e0\u5bfc\u81f4\u4e86\u610f\u5916\u7684\u540d\u79f0\u89e3\u6790\u7ed3\u679c\u3002<\/p>\n<h6>\u7f51\u7edc\u8fde\u63a5\u95ee\u9898<\/h6>\n<p>\u4e3a\u4e86\u4f7fDNS\u540d\u79f0\u89e3\u6790\u6b63\u5e38\u5de5\u4f5c&#xff0c;\u5ba2\u6237\u7aef\u5fc5\u987b\u80fd\u591f\u4e0e\u89e3\u6790\u540d\u79f0\u670d\u52a1\u5668\u6b63\u5e38\u901a\u884c&#xff0c;\u89e3\u6790\u540d\u79f0\u670d\u52a1\u5668\u4e0e\u5176\u4ed6\u6743\u5a01\u540d\u79f0\u670d\u52a1\u5668\u6b63\u5e38\u901a\u4fe1\u3002<br \/>\n\u4f8b\u5982&#xff0c;\u5982\u679cdig\u65e0\u6cd5\u5230\u8fbe\/etc\/resolv.conf\u4e2d\u7684\u4efb\u4f55DNS\u670d\u52a1\u5668&#xff0c;\u5219\u4f1a\u53d1\u751f\u4ee5\u4e0b\u9519\u8bef\u3002 \u8fd9\u53ef\u80fd\u662f\u56e0\u4e3a\u540d\u79f0\u670d\u52a1\u5668\u5df2\u5173\u95ed&#xff0c;\u5ba2\u6237\u7aef\u4e0a\u7684\u7f51\u7edc\u6216\u9632\u706b\u5899\u51fa\u73b0\u95ee\u9898\u6216\/etc\/resolv.conf\u7684\u914d\u7f6e\u9519\u8bef\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> A zyy<br \/>\n<span class=\"token punctuation\">;<\/span> <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> DiG <span class=\"token number\">9.11<\/span>.4-P2-RedHat-9.11.4-26.P2.el8 <span class=\"token operator\">&lt;&lt;<\/span><span class=\"token operator\">&gt;&gt;<\/span> A zyy<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> global options: &#043;cmd<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> connection timed out<span class=\"token punctuation\">;<\/span> no servers could be reached<\/p>\n<p>\u5982\u679c\u6d89\u53ca\u9632\u706b\u5899&#xff0c;\u5219\u5fc5\u987b\u786e\u4fdd\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e0e\u540d\u79f0\u670d\u52a1\u5668UDP\u548cTCP\u4e0a53\u7aef\u53e3\u901a\u4fe1\u3002 \u5982\u679c\u540d\u79f0\u670d\u52a1\u5668\u53ea\u5141\u8bb8\u7aef\u53e353\/UDP\u4e0a\u7684\u6d41\u91cf\u901a\u8fc7&#xff0c;\u4e0d\u5141\u8bb8\u7aef\u53e353\/TCP\u4e0a\u7684\u6d41\u91cf\u901a\u8fc7&#xff0c;\u5219\u5f53\u54cd\u5e94\u7684\u5927\u5c0f\u8d85\u8fc7512\u5b57\u8282&#xff08;\u652f\u6301DNS\u6269\u5c55\u673a\u5236&#xff08;EDNS&#xff09;\u7684\u670d\u52a1\u5668\u4e3a4096\u5b57\u8282&#xff09;\u65f6&#xff0c;\u89e3\u6790\u5668\u5fc5\u987b\u4eceUDP\u5207\u6362\u5230TCP\u5e76\u91cd\u8bd5\u67e5\u8be2&#xff0c;\u6211\u4eec\u4f1a\u770b\u5230\u622a\u65ad\u901a\u77e5\u4ee5\u53ca\u4e3b\u673a\u65e0\u6cd5\u8bbf\u95ee\u7684\u9519\u8bef&#xff1a;<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> &#064;dns.zyy A labhost1.zyy<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Truncated, retrying <span class=\"token keyword\">in<\/span> TCP mode.<br \/>\n<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span> Connection to <span class=\"token number\">172.25<\/span>.1.11<span class=\"token comment\">#53(172.25.1.11) for labhost1.zyy failed:<\/span><br \/>\n<span class=\"token function\">host<\/span> unreachable.<\/p>\n<p>dig\u547d\u4ee4\u53ef\u4ee5\u6307\u5b9atcp\u6216vc\u9009\u9879&#xff0c;\u5f3a\u5236\u4f7f\u7528TCP\u67e5\u8be2\u8bb0\u5f55&#xff0c;\u800c\u4e0d\u662f\u9ed8\u8ba4\u884c\u4e3a&#xff1a;\u5148\u4f7f\u7528UDP&#xff0c;\u7136\u540e\u4ec5\u5bf9\u4e8e\u5927\u54cd\u5e94\u624d\u4f7f\u7528TCP\u3002<\/p>\n<p><span class=\"token punctuation\">[<\/span>user&#064;host ~<span class=\"token punctuation\">]<\/span>$ <span class=\"token function\">dig<\/span> &#043;tcp A zyy<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/#content_views .toc,\/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/#content_views.markdown_views &gt; p:empty:has(+ .toc),#content_views.markdown_views &gt; .toc + p:empty,\/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/#content<\/p>\n","protected":false},"author":2,"featured_media":121155,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[43,44],"topic":[],"class_list":["post-121171","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-43","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4ece\u539f\u7406\u5230\u5b9e\u6218\uff1aDNS \u670d\u52a1\u5668\u5b8c\u5168\u6307\u5357\uff08BIND\/Unbound\/Dnsmasq \u914d\u7f6e\u8be6\u89e3\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/121171.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4ece\u539f\u7406\u5230\u5b9e\u6218\uff1aDNS \u670d\u52a1\u5668\u5b8c\u5168\u6307\u5357\uff08BIND\/Unbound\/Dnsmasq \u914d\u7f6e\u8be6\u89e3\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/#content_views .toc,\/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/#content_views.markdown_views &gt; p:empty:has(+ .toc),#content_views.markdown_views &gt; .toc + p:empty,\/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/#content\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/121171.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-01T21:09:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101210913-6ae7aa790194f.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"19 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/121171.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/121171.html\",\"name\":\"\u4ece\u539f\u7406\u5230\u5b9e\u6218\uff1aDNS 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