{"id":112597,"date":"2026-10-04T05:41:02","date_gmt":"2026-10-03T21:41:02","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/112597.html"},"modified":"2026-10-04T05:41:02","modified_gmt":"2026-10-03T21:41:02","slug":"miekg-dns-%e5%ba%93%e6%8c%87%e5%8d%97%ef%bc%9ago-%e8%af%ad%e8%a8%80%e4%b8%ad%e6%9e%84%e5%bb%ba-dns-%e6%9c%8d%e5%8a%a1%e5%99%a8%e3%80%81%e8%a7%a3%e6%9e%90%e5%99%a8%e4%b8%8e-dnssec-%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/112597.html","title":{"rendered":"miekg\/dns \u5e93\u6307\u5357\uff1aGo \u8bed\u8a00\u4e2d\u6784\u5efa DNS \u670d\u52a1\u5668\u3001\u89e3\u6790\u5668\u4e0e DNSSEC \u5e94\u7528\u7684\u5b8c\u6574\u5b9e\u8df5"},"content":{"rendered":"<ul class=\"gcb-tag-list\">\n<li><span class=\"gcb-tag\">\u4e91\u539f\u751f<\/span><\/li>\n<li><span class=\"gcb-tag\">\u5fae\u670d\u52a1<\/span><\/li>\n<li><span class=\"gcb-tag\">\u5bb9\u5668\u7f16\u6392<\/span><\/li>\n<li><span class=\"gcb-tag\">\u8fd0\u7ef4<\/span><\/li>\n<\/ul>\n<h3 class=\"gcb-project-title\">\u3010\u514d\u8d39\u4e0b\u8f7d\u94fe\u63a5\u3011flynn<\/h3>\n<p class=\"gcb-project-desc\">[UNMAINTAINED] A next generation open source platform as a service (PaaS)<\/p>\n<p>    <span class=\"gcb-project-addr-label\">\u9879\u76ee\u5730\u5740&#xff1a;<\/span><br \/>\n    <span class=\"gcb-project-addr-link\">https:\/\/gitcode.com\/gh_mirrors\/fl\/flynn<\/span> <\/p>\n<p>  <span class=\"gcb-project-btn\"> <span class=\"gcb-project-btn-main\">\u70b9\u51fb\u67e5\u770b<\/span> <span class=\"gcb-project-btn-sub\">\u514d\u8d39\u4e0b\u8f7d<\/span> <\/span> <\/p>\n<h3>\u5bfc\u8bfb<\/h3>\n<p>vendor\/github.com\/miekg\/dns \u662f\u4e00\u4e2a\u9075\u5faa\u201cLess is more\u201d\u54f2\u5b66\u3001\u53ea\u4f9d\u8d56 Go \u6807\u51c6\u5e93\u7684\u5b8c\u6574 DNS \u5e93&#xff0c;\u652f\u6301\u670d\u52a1\u7aef\u4e0e\u5ba2\u6237\u7aef\u7f16\u7a0b&#xff0c;\u6db5\u76d6\u51e0\u4e4e\u5168\u90e8\u5e38\u7528\u8d44\u6e90\u8bb0\u5f55&#xff08;\u542b DNSSEC \u7c7b\u578b&#xff09;\u3002\u672c\u6587\u4ee5\u8be5\u5e93\u7684 README \u4e0e\u6e90\u7801&#xff08;doc.go\u3001server.go\u3001client.go \u7b49&#xff09;\u4e3a\u4e3b\u7ebf&#xff0c;\u7ed3\u5408\u5176\u5728 Flynn \u4e2d discoverd \u5185\u7f6e DNS \u670d\u52a1&#xff08;discoverd\/server\/dns.go&#xff09;\u7684\u771f\u5b9e\u843d\u5730\u573a\u666f&#xff0c;\u7cfb\u7edf\u8bb2\u89e3 RR \u6784\u9020\u3001\u6d88\u606f\u6536\u53d1\u3001\u670d\u52a1\u5668\u7f16\u5199\u3001DNSSEC\u3001\u52a8\u6001\u66f4\u65b0\u3001TSIG\u3001AXFR\u3001EDNS0 \u4e0e SIG(0)&#xff0c;\u8ba9\u4f60\u8bfb\u5b8c\u5373\u53ef\u7528\u8be5\u5e93\u72ec\u7acb\u642d\u5efa\u89e3\u6790\u5668\u4e0e\u6743\u5a01\u670d\u52a1\u5668\u3002<\/p>\n<h3>\u5b9a\u4f4d&#xff1a;\u4e3a\u4ec0\u4e48\u9009\u62e9 miekg\/dns<\/h3>\n<p>\u8fd9\u4e2a\u5e93\u7684\u6838\u5fc3\u7406\u5ff5\u53ef\u4ee5\u6982\u62ec\u4e3a\u4e09\u53e5\u8bdd&#xff1a;<\/p>\n<ul>\n<li>KISS&#xff08;Keep It Simple, Stupid&#xff09;&#xff1a;\u4fdd\u6301\u6700\u7b80\u5355\u76f4\u63a5\u7684\u8bbe\u8ba1&#xff1b;<\/li>\n<li>Fast&#xff1a;\u8ffd\u6c42\u9ad8\u6027\u80fd&#xff1b;<\/li>\n<li>Small API&#xff1a;\u51e1\u662f\u80fd\u7528 Go \u539f\u751f\u4ee3\u7801\u7b80\u5355\u5b9e\u73b0\u7684&#xff0c;\u5c31\u4e0d\u989d\u5916\u63d0\u4f9b\u5c01\u88c5\u51fd\u6570\u3002<\/li>\n<\/ul>\n<p>README \u4e2d\u7ed9\u51fa\u7684\u57fa\u51c6\u6570\u636e&#xff08;\u201cFast\u201d\u7279\u6027\u4e00\u8282&#xff09;\u53ef\u4f9b\u53c2\u8003&#xff1a;\u56de\u590d\u901f\u5ea6\u7ea6\u4e3a\u6bcf\u79d2 8 \u4e07 QPS&#xff08;\u66f4\u5feb\u7684\u786c\u4ef6\u53ef\u66f4\u9ad8&#xff09;&#xff0c;RR \u89e3\u6790\u7ea6\u6bcf\u79d2 10 \u4e07\u6761&#xff0c;\u5373 500 \u4e07\u6761\u8bb0\u5f55\u5927\u7ea6 50 \u79d2\u89e3\u6790\u5b8c\u6210\u3002\u8fd9\u4e9b\u6570\u503c\u6765\u81ea\u9879\u76ee\u65b9\u81ea\u8ff0&#xff0c;\u5b9e\u9645\u8868\u73b0\u53d6\u51b3\u4e8e\u786c\u4ef6\u4e0e\u8d1f\u8f7d\u3002<\/p>\n<p>\u4ece\u4ed3\u5e93\u76ee\u5f55\u53ef\u4ee5\u770b\u5230&#xff0c;\u8be5\u5e93\u7684\u6e90\u7801\u7ec4\u7ec7\u975e\u5e38\u7cbe\u7b80&#xff0c;\u5168\u90e8\u529f\u80fd\u96c6\u4e2d\u5728\u51e0\u5341\u4e2a .go \u6587\u4ef6\u4e2d&#xff1a;<\/p>\n<table>\n<tr>\u6587\u4ef6\u804c\u8d23<\/tr>\n<tbody>\n<tr>\n<td>dns.go<\/td>\n<td>\u6838\u5fc3\u5e38\u91cf\u3001\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>msg.go<\/td>\n<td>DNS \u6d88\u606f\u7684 Pack\/Unpack \u4e0e\u6d88\u606f\u7ed3\u6784<\/td>\n<\/tr>\n<tr>\n<td>server.go<\/td>\n<td>\u670d\u52a1\u7aef\u5b9e\u73b0&#xff08;ServeMux\u3001Handler\u3001Server&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>client.go<\/td>\n<td>\u5ba2\u6237\u7aef\u67e5\u8be2\u5b9e\u73b0<\/td>\n<\/tr>\n<tr>\n<td>scan.go<\/td>\n<td>zone \u6587\u4ef6\u89e3\u6790\u5668<\/td>\n<\/tr>\n<tr>\n<td>dnssec.go<\/td>\n<td>DNSSEC \u7b7e\u540d\u4e0e\u9a8c\u8bc1<\/td>\n<\/tr>\n<tr>\n<td>tsig.go<\/td>\n<td>TSIG \u4e8b\u52a1\u7b7e\u540d<\/td>\n<\/tr>\n<tr>\n<td>xfr.go<\/td>\n<td>AXFR\/IXFR \u533a\u4f20\u9001<\/td>\n<\/tr>\n<tr>\n<td>update.go<\/td>\n<td>RFC 2136 \u52a8\u6001\u66f4\u65b0<\/td>\n<\/tr>\n<tr>\n<td>edns.go<\/td>\n<td>EDNS0 \u6269\u5c55\u673a\u5236<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u5728 Flynn \u4e2d\u7684\u771f\u5b9e\u7528\u9014<\/h4>\n<p>\u672c\u5e93\u5e76\u975e\u5b64\u7acb\u5b58\u5728&#xff0c;\u800c\u662f Flynn \u4e2d\u670d\u52a1\u53d1\u73b0\u7ec4\u4ef6 discoverd \u5185\u7f6e DNS \u670d\u52a1\u5668\u7684\u5e95\u5c42\u5f15\u64ce\u3002\u5728 discoverd\/server\/dns.go \u4e2d&#xff0c;discoverd \u76f4\u63a5\u5bfc\u5165 github.com\/miekg\/dns&#xff0c;\u5229\u7528\u5176 dns.Server\u3001dns.NewServeMux\u3001dns.HandlerFunc\u3001dns.Client \u7b49\u6784\u4ef6\u5b9e\u73b0\u4e86\u4e00\u4e2a\u96c6\u7fa4\u5185 DNS \u670d\u52a1&#xff1a;\u65e2\u80fd\u56de\u7b54 discoverd. \u57df\u4e0b\u7684\u670d\u52a1\u8bb0\u5f55&#xff08;A\/AAAA\/SRV\/SOA&#xff09;&#xff0c;\u53c8\u80fd\u4f5c\u4e3a\u9012\u5f52\u5668\u8f6c\u53d1\u5176\u4ed6\u57df\u7684\u67e5\u8be2\u3002\u8fd9\u662f\u7406\u89e3\u8be5\u5e93\u201c\u670d\u52a1\u7aef &#043; \u5ba2\u6237\u7aef\u4e00\u4f53\u201d\u80fd\u529b\u7684\u6700\u4f73\u53c2\u8003\u5b9e\u73b0\u3002<\/p>\n<h3>\u6784\u5efa\u4e0e\u4e0a\u624b<\/h3>\n<h4>\u7f16\u8bd1\u5b89\u88c5<\/h4>\n<p>README \u7ed9\u51fa\u7684\u6784\u5efa\u65b9\u5f0f&#xff08;\u9488\u5bf9 Go 1.5\/1.6 \u65f6\u4ee3&#xff09;\u5982\u4e0b&#xff1a;<\/p>\n<p>go get github.com\/miekg\/dns<br \/>\ngo build github.com\/miekg\/dns<\/p>\n<p>\u5728 Flynn \u4ed3\u5e93\u4e2d&#xff0c;\u8be5\u5e93\u4ee5 vendor \u65b9\u5f0f\u56fa\u5b9a\u7248\u672c\u5f15\u5165&#xff0c;go.mod \u4e2d\u8bb0\u5f55\u4e86\u4f9d\u8d56\u7248\u672c github.com\/miekg\/dns v0.0.0-20160726032027-db96a2b759cd&#xff08;\u89c1 go.mod&#xff09;&#xff0c;vendor\/github.com\/miekg\/dns \u76ee\u5f55\u5373\u4e3a\u8be5\u7248\u672c\u6e90\u7801\u5feb\u7167\u3002\u8fd9\u610f\u5473\u7740 Flynn \u7684\u6784\u5efa\u5b8c\u5168\u79bb\u7ebf\u53ef\u590d\u73b0&#xff0c;\u4e0d\u53d7\u4e0a\u6e38\u5e93\u6f14\u8fdb\u5f71\u54cd\u3002<\/p>\n<h4>\u6587\u6863\u5165\u53e3<\/h4>\n<p>doc.go \u662f\u5e93\u7684 API \u4f7f\u7528\u6587\u6863&#xff08;godoc github.com\/miekg\/dns \u65f6\u4f1a\u5c55\u793a\u5176\u5185\u5bb9&#xff09;&#xff0c;\u5176\u5f00\u5934\u7684\u201chow to use the API\u201d\u793a\u4f8b\u662f\u4e86\u89e3 API \u7684\u6700\u4f73\u8d77\u70b9\u3002README \u8fd8\u63d0\u5230\u66f4\u591a\u793a\u4f8b\u7a0b\u5e8f\u4f4d\u4e8e github.com\/miekg\/exdns \u4ed3\u5e93\u3002<\/p>\n<h3>\u8d44\u6e90\u8bb0\u5f55&#xff08;RR&#xff09;&#xff1a;\u4e09\u79cd\u6784\u9020\u65b9\u5f0f<\/h3>\n<p>\u5e93\u7684\u6838\u5fc3\u8bbe\u8ba1\u662f&#xff1a;\u8d44\u6e90\u8bb0\u5f55\u662f\u539f\u751f Go \u7c7b\u578b&#xff0c;\u800c\u975e wire \u683c\u5f0f\u7684\u5b57\u8282\u4e32\u3002\u8fd9\u8ba9\u4f60\u53ef\u4ee5\u7528\u7c7b\u578b\u5b89\u5168\u7684\u65b9\u5f0f\u6784\u9020\u548c\u8bfb\u53d6 RR\u3002<\/p>\n<p>doc.go \u5c55\u793a\u4e86\u521b\u5efa\u4e00\u4e2a MX \u8bb0\u5f55\u7684\u57fa\u672c\u6a21\u5f0f&#xff1a;<\/p>\n<p>r :&#061; new(dns.MX)<br \/>\nr.Hdr &#061; dns.RR_Header{Name: &#034;miek.nl.&#034;, Rrtype: dns.TypeMX,<br \/>\n    Class: dns.ClassINET, Ttl: 3600}<br \/>\nr.Preference &#061; 10<br \/>\nr.Mx &#061; &#034;mx.miek.nl.&#034;<\/p>\n<p>\u4e5f\u53ef\u4ee5\u76f4\u63a5\u4ece\u5b57\u7b26\u4e32\u89e3\u6790&#xff08;\u63a8\u8350\u7528\u4e8e\u914d\u7f6e\u9a71\u52a8\u7684\u573a\u666f&#xff09;&#xff1a;<\/p>\n<p>mx, err :&#061; dns.NewRR(&#034;miek.nl. 3600 IN MX 10 mx.miek.nl.&#034;)<\/p>\n<p>\u5f53\u9ed8\u8ba4 TTL&#xff08;3600&#xff09;\u548c class&#xff08;IN&#xff09;\u6070\u597d\u5408\u9002\u65f6\u8fd8\u53ef\u4ee5\u66f4\u7b80\u6d01&#xff1a;<\/p>\n<p>mx, err :&#061; dns.NewRR(&#034;miek.nl. MX 10 mx.miek.nl.&#034;)<\/p>\n<p>\u751a\u81f3\u53ef\u4ee5\u76f4\u63a5\u89e3\u6790\u5e26 $ORIGIN \u6307\u4ee4\u7684 zone \u7247\u6bb5&#xff1a;<\/p>\n<p>mx, err :&#061; dns.NewRR(&#034;$ORIGIN nl.\\\\nmiek 1H IN MX 10 mx.miek&#034;)<\/p>\n<p>\u6ce8\u610f doc.go \u4e2d\u7684\u4e00\u6761\u5173\u952e\u7ea6\u5b9a&#xff1a;\u53d1\u9001\u6d88\u606f\u524d\u57df\u540d\u5fc5\u987b\u662f\u5b8c\u5168\u9650\u5b9a\u540d&#xff08;FQDN&#xff09;&#xff0c;\u672a\u9650\u5b9a\u7684\u540d\u5b57\u5728\u6253\u5305&#xff08;pack&#xff09;\u65f6\u4f1a\u5931\u8d25\u3002\u5e93\u63d0\u4f9b\u4e86 dns.Fqdn(&#034;miek.nl&#034;) \u8fd9\u7c7b\u5de5\u5177\u6765\u8865\u5168\u672b\u5c3e\u7684\u70b9\u3002<\/p>\n<h3>\u6d88\u606f\u6784\u9020\u4e0e\u56db\u6bb5\u7ed3\u6784<\/h3>\n<p>DNS \u6d88\u606f dns.Msg&#xff08;\u5b9a\u4e49\u89c1 msg.go&#xff09;\u7531\u56db\u4e2a\u533a\u6bb5\u6784\u6210&#xff0c;\u4e0e\u534f\u8bae\u672c\u8eab\u4e00\u4e00\u5bf9\u5e94&#xff1a;<\/p>\n<ul>\n<li>Question&#xff1a;\u95ee\u9898\u533a&#xff1b;<\/li>\n<li>Answer&#xff1a;\u56de\u7b54\u533a&#xff1b;<\/li>\n<li>Ns&#xff1a;\u6388\u6743\u533a&#xff08;authority&#xff09;&#xff1b;<\/li>\n<li>Extra&#xff1a;\u9644\u52a0\u533a&#xff08;additional&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u5176\u4e2d\u9664 Question \u5916\u5747\u4e3a []RR\u3002\u6d88\u606f\u5934 MsgHdr \u5219\u66b4\u9732\u4e86 Id\u3001Response\u3001Opcode\u3001Truncated\u3001RecursionDesired\u3001RecursionAvailable\u3001AuthenticatedData\u3001CheckingDisabled\u3001Rcode \u7b49\u5b57\u6bb5&#xff08;msg.go&#xff09;\u3002<\/p>\n<p>\u6784\u9020\u4e00\u4e2a\u67e5\u8be2 MX \u8bb0\u5f55\u7684\u6d88\u606f&#xff0c;\u6700\u7b80\u6d01\u7684\u5199\u6cd5\u662f&#xff1a;<\/p>\n<p>m :&#061; new(dns.Msg)<br \/>\nm.SetQuestion(&#034;miek.nl.&#034;, dns.TypeMX)<\/p>\n<p>\u5982\u679c\u5bf9\u57df\u540d\u662f\u5426\u5df2\u662f FQDN \u4e0d\u786e\u5b9a&#xff1a;<\/p>\n<p>m.SetQuestion(dns.Fqdn(&#034;miek.nl&#034;), dns.TypeMX)<\/p>\n<p>\u66f4\u7075\u6d3b\u4f46\u7a0d\u663e\u5197\u957f\u7684\u7b49\u4ef7\u5199\u6cd5&#xff08;\u624b\u52a8\u586b\u5145\u5404\u5b57\u6bb5&#xff0c;\u4fbf\u4e8e\u9010\u9879\u63a7\u5236&#xff09;&#xff1a;<\/p>\n<p>m1 :&#061; new(dns.Msg)<br \/>\nm1.Id &#061; dns.Id()          \/\/ 16 \u4f4d\u968f\u673a ID<br \/>\nm1.RecursionDesired &#061; true<br \/>\nm1.Question &#061; make([]dns.Question, 1)<br \/>\nm1.Question[0] &#061; dns.Question{&#034;miek.nl.&#034;, dns.TypeMX, dns.ClassINET}<\/p>\n<p>dns.Id \u662f\u4e00\u4e2a\u53ef\u91cd\u8d4b\u503c\u7684\u53d8\u91cf&#xff0c;\u9ed8\u8ba4\u8fd4\u56de 16 \u4f4d\u968f\u673a\u6570&#xff1b;\u4f60\u751a\u81f3\u53ef\u4ee5\u4e3a\u4e86\u6d4b\u8bd5\u628a\u5b83\u6539\u6210\u56fa\u5b9a\u503c&#xff08;\u89c1 msg.go&#xff09;\u3002<\/p>\n<p>\u8bfb\u53d6\u54cd\u5e94\u65f6&#xff0c;\u6309\u7c7b\u578b\u65ad\u8a00\u8bbf\u95ee RR \u6570\u636e\u662f\u6807\u51c6\u59ff\u52bf\u3002\u4f8b\u5982\u53d6\u51fa Answer \u533a\u7b2c\u4e00\u4e2a RR&#xff0c;\u5224\u65ad\u5b83\u662f\u5426\u4e3a TXT \u8bb0\u5f55&#xff1a;<\/p>\n<p>if t, ok :&#061; in.Answer[0].(*dns.TXT); ok {<br \/>\n    \/\/ do something with t.Txt<br \/>\n}<\/p>\n<h4>\u540d\u79f0\u4e0e TXT \u5b57\u7b26\u4e32\u7684\u5c55\u793a\u5f62\u5f0f<\/h4>\n<p>doc.go \u5f3a\u8c03&#xff1a;\u57df\u540d\u4e0e TXT \u5b57\u7b26\u5b57\u7b26\u4e32\u5728\u89e3\u5305&#xff08;unpack&#xff09;\u548c\u8f6c\u5b57\u7b26\u4e32\u65f6\u90fd\u4f1a\u7edf\u4e00\u8f6c\u6362\u4e3a\u5c55\u793a\u5f62\u5f0f&#xff08;presentation form&#xff09;&#xff1a;<\/p>\n<ul>\n<li>TXT \u5b57\u7b26\u4e32\u4e2d\u7684 tab\u3001\u56de\u8f66\u3001\u6362\u884c\u5206\u522b\u8f6c\u4e49\u4e3a \\\\t\u3001\\\\r\u3001\\\\n&#xff1b;\u53cd\u659c\u6760\u4e0e\u5f15\u53f7\u88ab\u8f6c\u4e49&#xff1b;\u5c0f\u4e8e 32 \u6216\u5927\u4e8e 127 \u7684\u5b57\u8282\u8f6c\u4e3a \\\\DDD \u5f62\u5f0f&#xff1b;<\/li>\n<li>\u57df\u540d\u5728\u6b64\u57fa\u7840\u4e0a\u8fd8\u4f1a\u5bf9\u62ec\u53f7\u3001\u53e5\u70b9\u3001\u7a7a\u683c\u3001\u5206\u53f7\u4e0e &#064; \u7b26\u53f7\u8fdb\u884c\u8f6c\u4e49\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4fdd\u8bc1\u4e86\u6253\u5370\u3001\u65e5\u5fd7\u4e0e\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h3>\u5ba2\u6237\u7aef\u7f16\u7a0b&#xff1a;\u540c\u6b65\u67e5\u8be2\u4e0e\u9ad8\u7ea7\u9009\u9879<\/h3>\n<h4>\u6700\u7b80\u67e5\u8be2<\/h4>\n<p>\u4e0d\u9700\u8981\u9ad8\u7ea7\u7279\u6027\u65f6&#xff0c;\u4e00\u6761 UDP \u67e5\u8be2\u5373\u53ef\u5b8c\u6210&#xff1a;<\/p>\n<p>in, err :&#061; dns.Exchange(m1, &#034;127.0.0.1:53&#034;)<\/p>\n<p>\u8be5\u5305\u7ea7\u51fd\u6570&#xff08;client.go&#xff09;\u5185\u90e8\u4ee5 2 \u79d2\u8d85\u65f6\u62e8\u53f7&#xff0c;\u53d1\u9001\u6d88\u606f\u5e76\u7b49\u5f85\u56de\u590d&#xff0c;\u8fd8\u4f1a\u6821\u9a8c\u54cd\u5e94\u6d88\u606f\u7684 Id \u662f\u5426\u4e0e\u8bf7\u6c42\u4e00\u81f4&#xff08;\u4e0d\u4e00\u81f4\u8fd4\u56de ErrId&#xff09;\u3002<\/p>\n<h4>\u4f7f\u7528 dns.Client \u83b7\u5f97 RTT \u4e0e\u66f4\u591a\u63a7\u5236<\/h4>\n<p>c :&#061; new(dns.Client)<br \/>\nin, rtt, err :&#061; c.Exchange(m1, &#034;127.0.0.1:53&#034;)<\/p>\n<p>dns.Client&#xff08;client.go&#xff09;\u652f\u6301\u4ee5\u4e0b\u53c2\u6570&#xff1a;<\/p>\n<table>\n<tr>\u5b57\u6bb5\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>Net<\/td>\n<td>&#034;tcp&#034; \u6216 &#034;tcp-tls&#034;&#xff08;DNS over TLS&#xff09;\u65f6\u8d70 TCP&#xff0c;\u9ed8\u8ba4\u7a7a\u4e32\u8d70 UDP<\/td>\n<\/tr>\n<tr>\n<td>UDPSize<\/td>\n<td>UDP \u6700\u5c0f\u63a5\u6536\u7f13\u51b2\u533a<\/td>\n<\/tr>\n<tr>\n<td>TLSConfig<\/td>\n<td>TLS \u8fde\u63a5\u914d\u7f6e&#xff08;\u7528\u4e8e DoT&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>Timeout<\/td>\n<td>\u62e8\u53f7 &#043; \u8bfb\u5199\u7d2f\u8ba1\u8d85\u65f6&#xff0c;\u975e\u96f6\u65f6\u8986\u76d6\u4e0b\u9762\u4e09\u4e2a\u8d85\u65f6<\/td>\n<\/tr>\n<tr>\n<td>DialTimeout \/ ReadTimeout \/ WriteTimeout<\/td>\n<td>\u9ed8\u8ba4\u5747\u4e3a 2 \u79d2<\/td>\n<\/tr>\n<tr>\n<td>TsigSecret<\/td>\n<td>TSIG \u5bc6\u94a5\u8868&#xff0c;map[\u5b8c\u5168\u9650\u5b9a\u57df\u540d]base64\u5bc6\u94a5<\/td>\n<\/tr>\n<tr>\n<td>SingleInflight<\/td>\n<td>\u4e3a true \u65f6\u5408\u5e76\u76f8\u540c Qname\/Qtype\/Qclass \u7684\u5e76\u53d1\u67e5\u8be2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u5408\u5e76\u5e76\u53d1\u67e5\u8be2&#xff1a;SingleInflight<\/h4>\n<p>\u5f53\u6709\u5927\u91cf\u5e76\u53d1\u8bf7\u6c42\u6307\u5411\u540c\u4e00\u95ee\u9898\u65f6&#xff0c;\u53ef\u4ee5\u5f00\u542f\u67e5\u8be2\u5408\u5e76&#xff1a;<\/p>\n<p>c.SingleInflight &#061; true<\/p>\n<p>\u8bbe\u7f6e\u540e&#xff0c;\u5e93\u4f1a\u4f7f\u7528\u5355\u98de&#xff08;singleflight&#xff09;\u673a\u5236&#xff0c;\u591a\u4e2a\u76f8\u540c\u67e5\u8be2\u5171\u4eab\u4e00\u6b21\u7f51\u7edc\u5f80\u8fd4&#xff0c;\u663e\u8457\u964d\u4f4e\u4e0a\u6e38\u538b\u529b&#xff08;\u5b9e\u73b0\u4f4d\u4e8e singleinflight.go&#xff09;\u3002<\/p>\n<p>\u53e6\u5916\u6ce8\u610f&#xff1a;Exchange \u4e0d\u4f1a\u81ea\u52a8\u91cd\u8bd5\u5931\u8d25\u67e5\u8be2&#xff0c;\u4e5f\u4e0d\u4f1a\u5728\u622a\u65ad&#xff08;truncation&#xff09;\u65f6\u81ea\u52a8\u56de\u9000 TCP&#xff1b;\u5982\u9700\u5927\u54cd\u5e94&#xff0c;\u5e94\u5728\u6d88\u606f\u4e0a\u9644\u52a0 EDNS0 OPT RR \u6765\u901a\u544a\u66f4\u5927\u7684\u7f13\u51b2\u533a&#xff08;\u89c1\u4e0b\u6587 EDNS0 \u4e00\u8282&#xff09;&#xff0c;\u5426\u5219\u56de\u9000\u5230\u5386\u53f2 512 \u5b57\u8282\u9650\u5236\u3002<\/p>\n<h3>\u670d\u52a1\u7aef\u7f16\u7a0b&#xff1a;\u6a21\u4eff net\/http \u7684 Handler \u6a21\u578b<\/h3>\n<p>\u670d\u52a1\u7aef API \u523b\u610f\u6a21\u4eff net\/http&#xff1a;\u6ce8\u518c handler\u3001\u542f\u52a8\u76d1\u542c\u3001\u5e76\u53d1\u5904\u7406\u3002\u6838\u5fc3\u63a5\u53e3\u89c1 server.go&#xff1a;<\/p>\n<ul>\n<li>Handler&#xff1a;\u5b9e\u73b0 ServeDNS(w ResponseWriter, r *Msg) \u7684\u7c7b\u578b&#xff1b;<\/li>\n<li>ResponseWriter&#xff1a;\u63d0\u4f9b LocalAddr()\u3001RemoteAddr()\u3001WriteMsg(*Msg)\u3001Write([]byte)\u3001Close()\u3001TsigStatus()\u3001TsigTimersOnly(bool)\u3001Hijack() \u7b49\u80fd\u529b&#xff1b;<\/li>\n<li>ServeMux&#xff1a;DNS \u8bf7\u6c42\u591a\u8def\u590d\u7528\u5668&#xff0c;\u6309 zone \u540d\u5339\u914d\u6700\u8d34\u8fd1\u7684\u5df2\u6ce8\u518c\u6a21\u5f0f&#xff0c;\u4e14\u5bf9 DNSSEC \u611f\u77e5&#xff08;DS \u8bb0\u5f55\u67e5\u8be2\u4f1a\u88ab\u5bfc\u5411\u7236 zone&#xff09;&#xff0c;\u5e76\u53d1\u8bbf\u95ee\u5b89\u5168\u3002<\/li>\n<\/ul>\n<p>\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u670d\u52a1\u5668&#xff0c;\u51e0\u4e4e\u53ef\u4ee5\u7167\u6284 net\/http \u7684\u5199\u6cd5&#xff1a;<\/p>\n<p>server :&#061; &amp;dns.Server{Addr: &#034;:53&#034;, Net: &#034;udp&#034;}<br \/>\nserver.TsigSecret &#061; map[string]string{&#034;axfr.&#034;: &#034;so6ZGir4GPAqINNh9U5c3A&#061;&#061;&#034;}<br \/>\ngo server.ListenAndServe()<br \/>\ndns.HandleFunc(&#034;.&#034;, handleRequest)<\/p>\n<p>func handleRequest(w dns.ResponseWriter, r *dns.Msg) {<br \/>\n    m :&#061; new(dns.Msg)<br \/>\n    m.SetReply(r)<br \/>\n    w.WriteMsg(m)<br \/>\n}<\/p>\n<p>\u5305\u7ea7\u51fd\u6570 dns.ListenAndServe(addr, network, handler) \u548c dns.ListenAndServeTLS(addr, certFile, keyFile, handler) \u4e5f\u90fd\u6709\u63d0\u4f9b&#xff08;server.go&#xff09;&#xff0c;\u540e\u8005\u5bf9\u5e94 DNS over TLS \u670d\u52a1\u7aef\u3002<\/p>\n<h4>\u751f\u4ea7\u6848\u4f8b&#xff1a;discoverd \u7684\u53cc\u6808 DNS \u670d\u52a1\u5668<\/h4>\n<p>Flynn \u7684 discoverd\/server\/dns.go \u6f14\u793a\u4e86\u5982\u4f55\u7528\u8be5\u5e93\u642d\u5efa\u53ef\u540c\u65f6\u76d1\u542c UDP\/TCP \u7684\u670d\u52a1&#xff1a;<\/p>\n<li>\u7528 dns.NewServeMux() \u521b\u5efa mux&#xff1b;<\/li>\n<li>\u7528 mux.HandleFunc(srv.Domain, api.ServiceLookup) \u6ce8\u518c discoverd. \u57df\u7684\u670d\u52a1\u67e5\u8be2 handler&#xff0c;\u6709\u9012\u5f52\u5668\u65f6\u518d\u7528 mux.HandleFunc(&#034;.&#034;, api.Recurse) \u6ce8\u518c\u515c\u5e95 handler&#xff1b;<\/li>\n<li>\u5206\u522b\u6784\u9020 dns.Server{Net: &#034;udp&#034;, PacketConn: l, Handler: mux, &#8230;} \u4e0e dns.Server{Net: &#034;tcp&#034;, Listener: l, Handler: mux, &#8230;}&#xff0c;\u5404\u81ea ActivateAndServe() \u542f\u52a8&#xff1b;<\/li>\n<li>\u5173\u95ed\u65f6\u8c03\u7528\u6bcf\u4e2a Server \u7684 Shutdown()\u3002<\/li>\n<p>\u5728 handler \u5185\u90e8&#xff0c;discoverd \u7528 dns.SplitDomainName \u62c6\u5206\u67e5\u8be2\u540d&#xff0c;\u89e3\u6790 _service._tcp \u8fd9\u7c7b RFC 2782 SRV \u98ce\u683c\u8bf7\u6c42\u3001leader.service \u4e3b\u8282\u70b9\u67e5\u8be2\u548c instance.service._i \u5b9e\u4f8b\u5730\u5740\u67e5\u8be2&#xff1b;\u5bf9 SRV \u54cd\u5e94\u8fd8\u4f1a\u5728 Extra \u533a\u8ffd\u52a0\u5b9e\u4f8b A\/AAAA \u8bb0\u5f55&#xff08;discoverd\/server\/dns.go&#xff09;\u3002\u54cd\u5e94\u6784\u9020\u4e0a&#xff0c;SOA \u8bb0\u5f55\u3001SRV \u8bb0\u5f55\u548c A\/AAAA \u8bb0\u5f55\u5206\u522b\u7528 dns.SOA\u3001dns.SRV\u3001dns.A\/dns.AAAA \u539f\u751f\u7c7b\u578b\u586b\u5145&#xff08;discoverd\/server\/dns.go&#xff09;\u3002<\/p>\n<p>\u5176\u9012\u5f52\u5668 Recurse \u5219\u4f53\u73b0\u4e86\u5ba2\u6237\u7aef API \u7684\u7528\u6cd5&#xff1a;\u6784\u9020 dns.Client&#xff0c;\u6309\u5165\u7ad9\u8fde\u63a5\u534f\u8bae\u9009\u62e9 client.Net &#061; &#034;tcp&#034;&#xff0c;\u4f9d\u6b21\u5bf9\u6bcf\u4e2a\u4e0a\u6e38 recursor \u6267\u884c client.Exchange(req, recursor)&#xff0c;\u6210\u529f\u5373 w.WriteMsg(res) \u8f6c\u53d1&#xff0c;\u5168\u90e8\u5931\u8d25\u5219\u8fd4\u56de SERVFAIL&#xff08;discoverd\/server\/dns.go&#xff09;\u3002<\/p>\n<p>\u8be5\u903b\u8f91\u6709\u5b8c\u6574\u7684\u6d4b\u8bd5\u8986\u76d6&#xff0c;\u89c1 discoverd\/server\/dns_test.go&#xff0c;\u5176\u4e2d\u540c\u65f6\u542f\u52a8\u4e86 dns.Server&#xff08;UDP \u4e0e TCP&#xff09;&#xff0c;\u5e76\u901a\u8fc7 dns.Client \u7684 Exchange \u6821\u9a8c\u538b\u7f29\u957f\u54cd\u5e94\u3001\u670d\u52a1\u67e5\u8be2\u4e0e SERVFAIL \u573a\u666f\u3002<\/p>\n<h4>\u5176\u4ed6\u670d\u52a1\u7aef\u8981\u70b9<\/h4>\n<ul>\n<li>\u540c\u4e00 TCP \u8fde\u63a5\u4e0a\u9ed8\u8ba4\u6700\u591a\u5904\u7406 128 \u4e2a\u67e5\u8be2\u540e\u5173\u95ed\u8fde\u63a5&#xff08;maxTCPQueries&#xff0c;\u89c1 server.go&#xff09;&#xff1b;<\/li>\n<li>handler \u53ef\u901a\u8fc7 w.Hijack() \u63a5\u7ba1\u8fde\u63a5&#xff0c;\u4e4b\u540e\u5e93\u4e0d\u518d\u5bf9\u8be5\u8fde\u63a5\u505a\u4efb\u4f55\u5904\u7406&#xff1b;<\/li>\n<li>\u5305\u7ea7 DefaultServeMux \u53ef\u7528\u4e8e\u5168\u5c40\u6ce8\u518c&#xff0c;HandleFailed \u8fd4\u56de\u4e00\u4e2a\u5bf9\u4efb\u4f55\u8bf7\u6c42\u90fd\u56de SERVFAIL \u7684 handler\u3002<\/li>\n<\/ul>\n<h3>Zone \u6587\u4ef6\u89e3\u6790<\/h3>\n<p>RFC 1035 \u7684 zone \u6587\u4ef6\u89e3\u6790\u7531 scan.go&#xff08;\u53ca\u5176\u8f85\u52a9 scanner.go\u3001scan_rr.go&#xff09;\u5b9e\u73b0\u3002README \u660e\u786e\u652f\u6301&#xff1a;<\/p>\n<ul>\n<li>$INCLUDE&#xff1a;\u5305\u542b\u5176\u4ed6\u6587\u4ef6&#xff1b;<\/li>\n<li>$ORIGIN&#xff1a;\u4fee\u6539\u5f53\u524d\u6e90\u70b9&#xff1b;<\/li>\n<li>$TTL&#xff1a;\u8bbe\u7f6e\u9ed8\u8ba4 TTL&#xff1b;<\/li>\n<li>$GENERATE&#xff1a;\u4e3a\u6240\u6709\u8bb0\u5f55\u7c7b\u578b\u751f\u6210\u5e8f\u5217\u5316\u8bb0\u5f55\u3002<\/li>\n<\/ul>\n<p>\u914d\u5408 dns.NewRR \u4e0e dns.NewZoneParser \u7b49\u5165\u53e3&#xff0c;\u53ef\u4ee5\u65b9\u4fbf\u5730\u628a zone \u6587\u4ef6\u52a0\u8f7d\u8fdb\u5185\u5b58&#xff0c;\u4f5c\u4e3a\u6743\u5a01\u670d\u52a1\u5668\u7684\u6570\u636e\u6e90\u3002<\/p>\n<h3>DNSSEC&#xff1a;\u7b7e\u540d\u3001\u9a8c\u8bc1\u4e0e\u5bc6\u94a5\u751f\u6210<\/h3>\n<p>DNSSEC&#xff08;DNS Security Extensions&#xff09;\u7528\u516c\u94a5\u5bc6\u7801\u4e3a\u8d44\u6e90\u8bb0\u5f55\u7b7e\u540d&#xff1a;\u516c\u94a5\u653e\u5728 DNSKEY \u8bb0\u5f55\u4e2d&#xff0c;\u7b7e\u540d\u653e\u5728 RRSIG \u8bb0\u5f55\u4e2d\u3002\u672c\u5e93\u652f\u6301&#xff1a;<\/p>\n<ul>\n<li>\u7b7e\u540d&#xff08;dnssec.go&#xff09;&#xff1b;<\/li>\n<li>\u9a8c\u8bc1&#xff08;dnssec.go&#xff09;&#xff1b;<\/li>\n<li>\u5bc6\u94a5\u751f\u6210&#xff08;dnssec_keygen.go\u3001dnssec_keyscan.go \u8d1f\u8d23\u626b\u63cf\u4e0e\u79c1\u94a5\u5904\u7406&#xff09;&#xff1b;<\/li>\n<li>\u7b97\u6cd5\u8986\u76d6 DSA\u3001RSA\u3001ECDSA\u3002<\/li>\n<\/ul>\n<p>\u8bf7\u6c42\u4e00\u4e2a zone \u7684 DNSSEC \u4fe1\u606f&#xff0c;\u53ea\u9700\u5728\u6d88\u606f\u4e2d\u8bbe\u7f6e DO&#xff08;DNSSEC OK&#xff09;\u4f4d&#xff1a;<\/p>\n<p>m :&#061; new(dns.Msg)<br \/>\nm.SetEdns0(4096, true)<\/p>\n<p>SetEdns0(4096, true) \u540c\u65f6\u5b8c\u6210\u4e86\u4e24\u4ef6\u4e8b&#xff1a;\u9644\u52a0\u4e00\u4e2a\u901a\u544a 4096 \u5b57\u8282\u7f13\u51b2\u533a\u7684 OPT RR&#xff0c;\u5e76\u8bbe\u7f6e DO \u4f4d&#xff0c;\u8981\u6c42\u54cd\u5e94\u4e2d\u5305\u542b DNSSEC \u8bb0\u5f55\u3002NSEC3 \u7684\u652f\u6301\u89c1 nsecx.go&#xff0c;TLSA \u8bb0\u5f55&#xff08;DANE&#xff09;\u89c1 tlsa.go\u3002<\/p>\n<h3>\u52a8\u6001\u66f4\u65b0&#xff08;RFC 2136&#xff09;<\/h3>\n<p>\u52a8\u6001\u66f4\u65b0\u590d\u7528 DNS \u6d88\u606f\u683c\u5f0f&#xff0c;\u4f46\u8bed\u4e49\u4e0a\u91cd\u547d\u540d\u4e86\u4e09\u4e2a\u533a\u6bb5&#xff08;\u89c1 update.go&#xff09;&#xff1a;<\/p>\n<ul>\n<li>Question \u2192 Zone&#xff1b;<\/li>\n<li>Answer \u2192 Prerequisite&#xff08;\u524d\u63d0\u6761\u4ef6&#xff09;&#xff1b;<\/li>\n<li>Authority \u2192 Update&#xff1b;<\/li>\n<li>Additional \u540d\u79f0\u4e0d\u53d8\u3002<\/li>\n<\/ul>\n<p>\u4f60\u53ef\u4ee5\u7528\u524d\u63d0\u6761\u4ef6\u89c4\u5b9a\u201c\u67d0\u8bb0\u5f55\u5b58\u5728\/\u4e0d\u5b58\u5728\u201d\u6765\u51b3\u5b9a\u540e\u7eed\u589e\u5220\u662f\u5426\u6267\u884c\u3002doc.go \u7ed9\u51fa\u4e24\u5f20\u6765\u81ea RFC 2136 \u7684\u5b8c\u6574\u5bf9\u5e94\u8868&#xff1a;<\/p>\n<p>\u524d\u63d0\u533a&#xff08;Prerequisite&#xff09;\u7528\u5230\u7684\u51fd\u6570&#xff1a;<\/p>\n<table>\n<tr>CLASSTYPERDATA\u542b\u4e49\u51fd\u6570<\/tr>\n<tbody>\n<tr>\n<td>ANY<\/td>\n<td>ANY<\/td>\n<td>\u7a7a<\/td>\n<td>\u540d\u5b57\u88ab\u4f7f\u7528<\/td>\n<td>dns.NameUsed<\/td>\n<\/tr>\n<tr>\n<td>ANY<\/td>\n<td>rrset<\/td>\n<td>\u7a7a<\/td>\n<td>RRset \u5b58\u5728&#xff08;\u4e0e\u503c\u65e0\u5173&#xff09;<\/td>\n<td>dns.RRsetUsed<\/td>\n<\/tr>\n<tr>\n<td>NONE<\/td>\n<td>ANY<\/td>\n<td>\u7a7a<\/td>\n<td>\u540d\u5b57\u672a\u88ab\u4f7f\u7528<\/td>\n<td>dns.NameNotUsed<\/td>\n<\/tr>\n<tr>\n<td>NONE<\/td>\n<td>rrset<\/td>\n<td>\u7a7a<\/td>\n<td>RRset \u4e0d\u5b58\u5728<\/td>\n<td>dns.RRsetNotUsed<\/td>\n<\/tr>\n<tr>\n<td>zone<\/td>\n<td>rrset<\/td>\n<td>rr<\/td>\n<td>RRset \u5b58\u5728&#xff08;\u4f9d\u8d56\u503c&#xff09;<\/td>\n<td>dns.Used<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u524d\u63d0\u533a\u4e5f\u53ef\u4ee5\u7559\u7a7a\u3002<\/p>\n<p>\u66f4\u65b0\u533a&#xff08;Update&#xff09;\u7528\u5230\u7684\u51fd\u6570&#xff1a;<\/p>\n<table>\n<tr>CLASSTYPERDATA\u542b\u4e49\u51fd\u6570<\/tr>\n<tbody>\n<tr>\n<td>ANY<\/td>\n<td>ANY<\/td>\n<td>\u7a7a<\/td>\n<td>\u5220\u9664\u540d\u5b57\u4e0b\u6240\u6709 RRset<\/td>\n<td>dns.RemoveName<\/td>\n<\/tr>\n<tr>\n<td>ANY<\/td>\n<td>rrset<\/td>\n<td>\u7a7a<\/td>\n<td>\u5220\u9664\u4e00\u4e2a RRset<\/td>\n<td>dns.RemoveRRset<\/td>\n<\/tr>\n<tr>\n<td>NONE<\/td>\n<td>rrset<\/td>\n<td>rr<\/td>\n<td>\u4ece RRset \u4e2d\u5220\u9664\u4e00\u6761 RR<\/td>\n<td>dns.Remove<\/td>\n<\/tr>\n<tr>\n<td>zone<\/td>\n<td>rrset<\/td>\n<td>rr<\/td>\n<td>\u5411 RRset \u6dfb\u52a0\u4e00\u6761 RR<\/td>\n<td>dns.Insert<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>TSIG \u4e8b\u52a1\u7b7e\u540d<\/h3>\n<p>TSIG&#xff08;Transaction Signature&#xff09;\u4e3a\u6bcf\u6761\u6d88\u606f\u9644\u52a0\u4e00\u4e2a HMAC \u7b7e\u540d\u8bb0\u5f55\u3002\u652f\u6301\u7684\u7b97\u6cd5\u5305\u62ec HmacMD5\u3001HmacSHA1\u3001HmacSHA256\u3001HmacSHA512&#xff08;tsig.go&#xff09;\u3002<\/p>\n<h4>\u67e5\u8be2\u573a\u666f<\/h4>\n<p>c :&#061; new(dns.Client)<br \/>\nc.TsigSecret &#061; map[string]string{&#034;axfr.&#034;: &#034;so6ZGir4GPAqINNh9U5c3A&#061;&#061;&#034;}<br \/>\nm :&#061; new(dns.Msg)<br \/>\nm.SetQuestion(&#034;miek.nl.&#034;, dns.TypeMX)<br \/>\nm.SetTsig(&#034;axfr.&#034;, dns.HmacMD5, 300, time.Now().Unix())<br \/>\n\/\/ \u53d1\u9001\u65f6 TSIG RR \u4f1a\u88ab\u8ba1\u7b97\u5e76\u81ea\u52a8\u586b\u5165<\/p>\n<p>\u6ce8\u610f&#xff1a;TSIG \u7684 key \u540d\u662f\u57df\u540d&#xff0c;\u5fc5\u987b\u5b8c\u5168\u9650\u5b9a&#xff08;\u5e26\u672b\u5c3e\u70b9&#xff09;\u3002<\/p>\n<h4>\u670d\u52a1\u7aef\u9a8c\u8bc1<\/h4>\n<p>server :&#061; &amp;dns.Server{Addr: &#034;:53&#034;, Net: &#034;udp&#034;}<br \/>\nserver.TsigSecret &#061; map[string]string{&#034;axfr.&#034;: &#034;so6ZGir4GPAqINNh9U5c3A&#061;&#061;&#034;}<br \/>\ngo server.ListenAndServe()<br \/>\ndns.HandleFunc(&#034;.&#034;, handleRequest)<\/p>\n<p>func handleRequest(w dns.ResponseWriter, r *dns.Msg) {<br \/>\n    m :&#061; new(dns.Msg)<br \/>\n    m.SetReply(r)<br \/>\n    if r.IsTsig() !&#061; nil {<br \/>\n        if w.TsigStatus() &#061;&#061; nil {<br \/>\n            \/\/ r \u5e26 TSIG \u4e14\u9a8c\u8bc1\u901a\u8fc7<br \/>\n            m.SetTsig(&#034;axfr.&#034;, dns.HmacMD5, 300, time.Now().Unix())<br \/>\n        } else {<br \/>\n            \/\/ r \u5e26 TSIG \u4f46\u9a8c\u8bc1\u5931\u8d25<br \/>\n        }<br \/>\n    }<br \/>\n    w.WriteMsg(m)<br \/>\n}<\/p>\n<p>ResponseWriter.TsigStatus() \u8fd4\u56de TSIG \u9a8c\u8bc1\u72b6\u6001&#xff0c;\u4e3a nil \u8868\u793a\u9a8c\u8bc1\u6210\u529f&#xff1b;TsigTimersOnly(bool) \u53ef\u5207\u6362\u5230\u4ec5\u6821\u9a8c\u65f6\u95f4\u6233\u6a21\u5f0f\u3002<\/p>\n<h3>AXFR \/ IXFR \u533a\u4f20\u9001<\/h3>\n<p>\u533a\u4f20\u9001&#xff08;zone transfer&#xff09;\u662f TSIG \u6700\u4e3b\u8981\u7684\u5e94\u7528\u573a\u666f\u3002\u7528 dns.Transfer \u8bf7\u6c42 AXFR \u7684\u5b8c\u6574\u6a21\u5f0f\u5982\u4e0b&#xff08;xfr.go&#xff09;&#xff1a;<\/p>\n<p>t :&#061; new(dns.Transfer)<br \/>\nm :&#061; new(dns.Msg)<br \/>\nt.TsigSecret &#061; map[string]string{&#034;axfr.&#034;: &#034;so6ZGir4GPAqINNh9U5c3A&#061;&#061;&#034;}<br \/>\nm.SetAxfr(&#034;miek.nl.&#034;)<br \/>\nm.SetTsig(&#034;axfr.&#034;, dns.HmacMD5, 300, time.Now().Unix())<br \/>\nc, err :&#061; t.In(m, &#034;176.58.119.54:53&#034;)<br \/>\nfor r :&#061; range c {<br \/>\n    \/\/ \u9010\u4e2a\u5904\u7406\u4f20\u9001\u56de\u6765\u7684\u8bb0\u5f55<br \/>\n}<\/p>\n<p>\u6bcf\u6536\u5230\u4e00\u4e2a\u6d88\u606f\u4fe1\u5c01\u90fd\u4f1a\u505a TSIG \u6821\u9a8c&#xff0c;\u4efb\u4f55\u5f02\u5e38\u90fd\u4f1a\u8fd4\u56de\u9519\u8bef\u3002IXFR&#xff08;\u589e\u91cf\u4f20\u9001&#xff0c;RFC 1995&#xff09;\u540c\u6837\u652f\u6301\u3002<\/p>\n<h3>EDNS0 \u6269\u5c55\u673a\u5236<\/h3>\n<p>EDNS0 \u7531 RFC 2671 \u5b9a\u4e49\u3001RFC 6891 \u66f4\u65b0&#xff0c;\u5f15\u5165\u4e00\u79cd\u88ab\u201c\u6ee5\u7528\u201d\u7684\u65b0 RR \u7c7b\u578b OPT\u3002\u6784\u9020\u4e00\u4e2a\u7a7a\u7684 OPT RR&#xff1a;<\/p>\n<p>o :&#061; new(dns.OPT)<br \/>\no.Hdr.Name &#061; &#034;.&#034; \/\/ \u6309\u5b9a\u4e49\u5fc5\u987b\u662f\u6839\u57df<br \/>\no.Hdr.Rrtype &#061; dns.TypeOPT<\/p>\n<p>OPT \u7684 rdata \u662f\u4e00\u7ec4 EDNS0 \u63a5\u53e3&#xff08;edns.go&#xff09;&#xff0c;\u76ee\u524d\u5df2\u6807\u51c6\u5316\u7684\u5305\u62ec EDNS0_NSID&#xff08;RFC 5001&#xff09;\u4e0e EDNS0_SUBNET&#xff08;client subnet&#xff0c;draft-vandergaast-edns-client-subnet-02&#xff09;&#xff0c;\u4e14\u53ef\u5728\u540c\u4e00\u4e2a OPT \u4e2d\u7ec4\u5408\u3002<\/p>\n<p>\u670d\u52a1\u7aef\u68c0\u67e5\u5ba2\u6237\u7aef\u5e26\u4e0a\u4e86\u54ea\u4e9b\u9009\u9879&#xff1a;<\/p>\n<p>\/\/ o \u662f\u4e00\u4e2a dns.OPT<br \/>\nfor _, s :&#061; range o.Option {<br \/>\n    switch e :&#061; s.(type) {<br \/>\n    case *dns.EDNS0_NSID:<br \/>\n        \/\/ \u5904\u7406 e.Nsid<br \/>\n    case *dns.EDNS0_SUBNET:<br \/>\n        \/\/ \u8bbf\u95ee e.Family\u3001e.Address \u7b49<br \/>\n    }<br \/>\n}<\/p>\n<p>\u76f8\u5173\u80fd\u529b\u8fd8\u5305\u62ec&#xff1a;DNS Cookies&#xff08;RFC 7873&#xff0c;draft-ietf-dnsop-cookies&#xff09;\u3001NSID&#xff08;RFC 5001&#xff09;\u3001EDNS0 EXPIRE \u9009\u9879&#xff08;RFC 7314&#xff09;\u4ee5\u53ca EDNS0 DNS Update Lease&#xff08;draft&#xff0c;\u5c1a\u5728\u8349\u6848\u9636\u6bb5&#xff09;\u3002\u6b64\u5916&#xff0c;\u542f\u7528\u6d88\u606f\u538b\u7f29\u540e\u5e93\u4f1a\u81ea\u52a8\u8fdb\u884c DNS \u540d\u79f0\u538b\u7f29&#xff08;\u89c1 msg.go \u4e2d\u7684 maxCompressionOffset \u5e38\u91cf&#xff0c;\u538b\u7f29\u6307\u9488\u53ef\u7528 14 \u4f4d&#xff09;\u3002<\/p>\n<h3>SIG(0)&#xff08;RFC 2931&#xff09;<\/h3>\n<p>RFC 2931 \u7684 SIG(0) \u4e3a DNS \u4e8b\u52a1\u63d0\u4f9b\u4fdd\u62a4&#xff1a;\u4fdd\u62a4 glue \u8bb0\u5f55\u3001\u8bf7\u6c42\u3001\u8bf7\u6c42\u4e0e\u54cd\u5e94\u4e2d\u7684\u6d88\u606f\u5934\u4ee5\u53ca\u54cd\u5e94\u6574\u4f53\u5b8c\u6574\u6027\u3002\u5b83\u5de5\u4f5c\u65b9\u5f0f\u7c7b\u4f3c TSIG&#xff0c;\u4f46\u4f7f\u7528\u516c\u94a5\u5bc6\u7801\u800c\u975e\u5171\u4eab\u5bc6\u94a5\u3002<\/p>\n<p>\u652f\u6301\u7684\u7b97\u6cd5&#xff1a;DSA\u3001ECDSAP256SHA256\u3001ECDSAP384SHA384\u3001RSASHA1\u3001RSASHA256\u3001RSASHA512&#xff08;\u5b9e\u73b0\u89c1 sig0.go&#xff09;\u3002<\/p>\n<p>\u4e00\u4e2a\u5df2\u77e5\u9650\u5236&#xff1a;\u591a\u6d88\u606f\u4f1a\u8bdd\u4e2d\u7684\u8fde\u7eed\u7b7e\u540d&#xff08;signing subsequent messages in multi-message sessions&#xff09;\u5c1a\u672a\u5b9e\u73b0\u3002<\/p>\n<h3>\u79c1\u6709 RR \u7c7b\u578b<\/h3>\n<p>RFC 6895 \u4e3a\u79c1\u6709\u7528\u9014\u5212\u51fa\u4e86\u4e00\u6bb5\u7c7b\u578b\u7801\u533a\u95f4&#xff1a;65,280 \u2013 65,534&#xff08;0xFF00 \u2013 0xFFFE&#xff09;\u3002\u5728\u5411 IANA \u7533\u8bf7\u6b63\u5f0f\u7c7b\u578b\u7801\u4e4b\u524d&#xff0c;\u53ef\u4ee5\u7528\u8fd9\u4e9b\u7801\u5b9e\u9a8c\u65b0\u7684 RR \u7c7b\u578b&#xff08;\u76f8\u5173\u5de5\u5177\u51fd\u6570\u89c1 types.go \u4e0e ztypes.go \u7684\u7c7b\u578b\u6620\u5c04&#xff09;\u3002<\/p>\n<h3>\u652f\u6301\u7684 RFC \u5168\u666f<\/h3>\n<p>README \u5217\u51fa\u4e86\u5b8c\u6574\u652f\u6301\u6e05\u5355&#xff08;\u62ec\u53f7\u5185\u4e3a\u672c\u4ed3\u5e93\u53ef\u6838\u5b9e\u7684\u5bf9\u5e94\u5b9e\u73b0\u6587\u4ef6&#xff09;&#xff1a;<\/p>\n<table>\n<tr>RFC\u5185\u5bb9\u5bf9\u5e94\u6e90\u7801<\/tr>\n<tbody>\n<tr>\n<td>1034\/1035<\/td>\n<td>DNS \u6807\u51c6<\/td>\n<td>msg.go\u3001scan.go<\/td>\n<\/tr>\n<tr>\n<td>1982<\/td>\n<td>\u5e8f\u5217\u53f7\u7b97\u672f<\/td>\n<td>\u5404\u5e8f\u5217\u53f7\u5904\u7406\u5904<\/td>\n<\/tr>\n<tr>\n<td>1876<\/td>\n<td>LOC \u8bb0\u5f55<\/td>\n<td>types.go<\/td>\n<\/tr>\n<tr>\n<td>1995 \/ 5936<\/td>\n<td>IXFR \/ AXFR<\/td>\n<td>xfr.go<\/td>\n<\/tr>\n<tr>\n<td>1996<\/td>\n<td>DNS notify<\/td>\n<td>\u6d88\u606f Opcode \u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td>2136<\/td>\n<td>DNS \u52a8\u6001\u66f4\u65b0<\/td>\n<td>update.go<\/td>\n<\/tr>\n<tr>\n<td>2782<\/td>\n<td>SRV \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49\u4e0e discoverd \u7528\u6cd5&#xff08;discoverd\/server\/dns.go&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>2845 \/ 4635<\/td>\n<td>TSIG \/ HMAC SHA TSIG<\/td>\n<td>tsig.go<\/td>\n<\/tr>\n<tr>\n<td>2915 \/ 3401-3403<\/td>\n<td>NAPTR \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>3225<\/td>\n<td>DO \u4f4d&#xff08;DNSSEC OK&#xff09;<\/td>\n<td>SetEdns0<\/td>\n<\/tr>\n<tr>\n<td>3597<\/td>\n<td>\u672a\u77e5 RR<\/td>\n<td>\u901a\u7528 RR \u5904\u7406<\/td>\n<\/tr>\n<tr>\n<td>4033\/4034\/4035<\/td>\n<td>DNSSEC \u4e0e\u9a8c\u8bc1\u51fd\u6570<\/td>\n<td>dnssec.go<\/td>\n<\/tr>\n<tr>\n<td>4255<\/td>\n<td>SSHFP \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>4408<\/td>\n<td>SPF \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>4509<\/td>\n<td>DS \u4e2d\u7684 SHA256 \u54c8\u5e0c<\/td>\n<td>DNSSEC \u9a8c\u8bc1<\/td>\n<\/tr>\n<tr>\n<td>4592<\/td>\n<td>DNS \u901a\u914d\u7b26<\/td>\n<td>zone \u89e3\u6790<\/td>\n<\/tr>\n<tr>\n<td>4701<\/td>\n<td>DHCID<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>5001<\/td>\n<td>NSID<\/td>\n<td>edns.go<\/td>\n<\/tr>\n<tr>\n<td>5155<\/td>\n<td>NSEC3 \u8bb0\u5f55<\/td>\n<td>nsecx.go<\/td>\n<\/tr>\n<tr>\n<td>5205<\/td>\n<td>HIP \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>5702<\/td>\n<td>DNS \u4e2d\u7684 SHA2<\/td>\n<td>DNSSEC \u7b97\u6cd5<\/td>\n<\/tr>\n<tr>\n<td>5966<\/td>\n<td>TCP \u5b9e\u73b0\u5efa\u8bae<\/td>\n<td>server.go<\/td>\n<\/tr>\n<tr>\n<td>6605<\/td>\n<td>ECDSA<\/td>\n<td>DNSSEC \u7b97\u6cd5<\/td>\n<\/tr>\n<tr>\n<td>6844<\/td>\n<td>CAA \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>6891<\/td>\n<td>EDNS0 \u66f4\u65b0<\/td>\n<td>edns.go<\/td>\n<\/tr>\n<tr>\n<td>6975<\/td>\n<td>DNSSEC \u7b97\u6cd5\u7406\u89e3<\/td>\n<td>DNSSEC \u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td>7043<\/td>\n<td>EUI48\/EUI64 \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>7314<\/td>\n<td>EDNS EXPIRE \u9009\u9879<\/td>\n<td>EDNS \u9009\u9879<\/td>\n<\/tr>\n<tr>\n<td>7553<\/td>\n<td>URI \u8bb0\u5f55<\/td>\n<td>\u7c7b\u578b\u5b9a\u4e49<\/td>\n<\/tr>\n<tr>\n<td>7858<\/td>\n<td>DNS over TLS&#xff08;draft&#xff09;<\/td>\n<td>client.go \u7684 tcp-tls \u4e0e server.go \u7684 ListenAndServeTLS<\/td>\n<\/tr>\n<tr>\n<td>7873<\/td>\n<td>DNS Cookies&#xff08;draft-ietf-dnsop-cookies&#xff09;<\/td>\n<td>EDNS \u9009\u9879<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6309 README \u7684\u8bf4\u6cd5&#xff0c;\u8fd9\u4efd\u6e05\u5355\u51e0\u4e4e\u8986\u76d6\u4e86\u201c\u6240\u6709\u201d\u76f8\u5173 RFC&#xff1b;\u540c\u65f6\u5b83\u4e5f\u5f3a\u8c03 ldns\u3001NSD\u3001Net::DNS\u3001GRONG \u7b49\u9879\u76ee\u662f\u8bbe\u8ba1\u4e0a\u7684\u53c2\u8003\u6765\u6e90\u3002<\/p>\n<h3>\u5728\u9879\u76ee\u4e2d\u4f7f\u7528\u65f6\u7684\u5efa\u8bae<\/h3>\n<ul>\n<li>\u4f9d\u8d56\u56fa\u5b9a&#xff1a;\u53c2\u7167 Flynn \u7684\u505a\u6cd5&#xff0c;\u628a\u8be5\u5e93\u653e\u5165 vendor \u76ee\u5f55\u5e76\u8bb0\u5f55\u7cbe\u786e\u7248\u672c&#xff08;go.mod&#xff09;&#xff0c;\u4fdd\u8bc1\u6784\u5efa\u53ef\u590d\u73b0&#xff1b;<\/li>\n<li>\u6ce8\u610f FQDN \u7ea6\u5b9a&#xff1a;\u6240\u6709\u53d1\u9001\u7684\u57df\u540d\u4e0e TSIG key \u540d\u5fc5\u987b\u5b8c\u5168\u9650\u5b9a&#xff0c;\u5426\u5219\u6253\u5305\u5931\u8d25&#xff1b;<\/li>\n<li>\u6b63\u786e\u8bbe\u7f6e EDNS0 \u7f13\u51b2\u533a&#xff1a;\u9700\u8981\u5927\u4e8e 512 \u5b57\u8282\u54cd\u5e94\u65f6&#xff0c;\u7528 SetEdns0 \u901a\u544a\u7f13\u51b2\u533a\u5927\u5c0f&#xff1b;<\/li>\n<li>\u533a\u5206\u4f20\u8f93&#xff1a;\u5927\u54cd\u5e94\u4e0e\u533a\u4f20\u9001\u573a\u666f\u4f18\u5148 TCP&#xff1b;UDP \u54cd\u5e94\u6ce8\u610f 512 \u5b57\u8282 \/ EDNS0 \u7f13\u51b2\u533a\u7684\u9650\u5236&#xff1b;<\/li>\n<li>\u590d\u7528 discoverd \u7684\u6a21\u5f0f&#xff1a;\u9700\u8981\u540c\u65f6\u670d\u52a1 UDP \u4e0e TCP \u65f6&#xff0c;\u53ef\u4eff\u7167 discoverd\/server\/dns.go \u5206\u522b\u542f\u52a8\u4e24\u4e2a dns.Server \u5171\u4eab\u540c\u4e00\u4e2a ServeMux\u3002<\/li>\n<\/ul>\n<h3>\u7ed3\u8bed<\/h3>\n<p>\u4ece README \u7684\u201cLess is more\u201d\u54f2\u5b66\u51fa\u53d1&#xff0c;\u672c\u6587\u628a miekg\/dns \u7684\u5b8c\u6574\u80fd\u529b\u9762\u2014\u2014RR \u6784\u9020\u3001\u6d88\u606f\u56db\u6bb5\u7ed3\u6784\u3001\u5ba2\u6237\u7aef\u540c\u6b65\u67e5\u8be2\u4e0e singleflight \u4f18\u5316\u3001net\/http \u98ce\u683c\u7684\u670d\u52a1\u7aef\u6a21\u578b\u3001zone \u89e3\u6790\u3001DNSSEC\u3001RFC 2136 \u52a8\u6001\u66f4\u65b0\u3001TSIG\u3001AXFR\/IXFR\u3001EDNS0 \u4e0e SIG(0)\u2014\u2014\u9010\u9879\u843d\u5730\u4e3a\u53ef\u76f4\u63a5\u8fd0\u884c\u7684\u4ee3\u7801\u6a21\u5f0f&#xff0c;\u5e76\u7ed3\u5408 Flynn discoverd \u7684 discoverd\/server\/dns.go \u5c55\u793a\u4e86\u5176\u5728\u771f\u5b9e PaaS \u670d\u52a1\u53d1\u73b0\u4e2d\u7684\u5de5\u7a0b\u7528\u6cd5\u3002\u65e0\u8bba\u662f\u7f16\u5199\u6743\u5a01\u670d\u52a1\u5668\u3001\u9012\u5f52\u89e3\u6790\u5668&#xff0c;\u8fd8\u662f\u4e3a\u5185\u90e8\u57fa\u7840\u8bbe\u65bd\u589e\u52a0\u5b89\u5168 DNS \u80fd\u529b&#xff0c;\u8fd9\u4e2a\u5e93\u90fd\u63d0\u4f9b\u4e86\u5c0f\u800c\u5b8c\u6574\u7684\u5de5\u5177\u7bb1\u3002<\/p>\n<p>  <img loading=\"lazy\" decoding=\"async\" class=\"gcb-icon-like\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261003214100-6ac1766ce45f7.svg\" alt=\"\" width=\"16\" height=\"16\" \/> <span class=\"gcb-like-text\">\u8d5e<\/span>  <\/p>\n<p>   <span class=\"gcb-share-text\">\u5206\u4eab<\/span>  <\/p>\n<ul class=\"gcb-tag-list\">\n<li><span class=\"gcb-tag\">\u4e91\u539f\u751f<\/span><\/li>\n<li><span class=\"gcb-tag\">\u5fae\u670d\u52a1<\/span><\/li>\n<li><span class=\"gcb-tag\">\u5bb9\u5668\u7f16\u6392<\/span><\/li>\n<li><span class=\"gcb-tag\">\u8fd0\u7ef4<\/span><\/li>\n<\/ul>\n<h3 class=\"gcb-project-title\">\u3010\u514d\u8d39\u4e0b\u8f7d\u94fe\u63a5\u3011flynn<\/h3>\n<p class=\"gcb-project-desc\">[UNMAINTAINED] A next generation open source platform as a service (PaaS)<\/p>\n<p>    <span class=\"gcb-project-addr-label\">\u9879\u76ee\u5730\u5740&#xff1a;<\/span><br \/>\n    <span class=\"gcb-project-addr-link\">https:\/\/gitcode.com\/gh_mirrors\/fl\/flynn<\/span> <\/p>\n<p>  <span class=\"gcb-project-btn\"> <span class=\"gcb-project-btn-main\">\u70b9\u51fb\u67e5\u770b<\/span> <span class=\"gcb-project-btn-sub\">\u514d\u8d39\u4e0b\u8f7d<\/span> <\/span> <\/p>\n<h4 class=\"gcb-related-title\">\u76f8\u5173\u63a8\u8350<\/h4>\n<ul class=\"gcb-related-list\">\n<li class=\"gcb-related-item\">\n<h5 class=\"gcb-related-item-title\">\u673a\u68b0\u952e\u76d8\u6309\u952e\u91cd\u590d\u89e6\u53d1&#xff1f;QMK \u6d88\u6296 5 \u5206\u949f\u8c03\u5bf9<\/h5>\n<p class=\"gcb-related-item-desc\">\u673a\u68b0\u952e\u76d8\u6309\u952e\u91cd\u590d\u89e6\u53d1&#xff1f;QMK \u6d88\u6296 5 \u5206\u949f\u8c03\u5bf9 QMK Firmware \u662f\u5f00\u6e90\u7684\u673a\u68b0\u952e\u76d8\u56fa\u4ef6&#xff0c;\u8dd1\u5728 AVR\/ARM \u82af\u7247\u4e0a\u3002\u88c5\u597d\u4e4b\u540e\u9047\u5230\u4e00\u7c7b\u8001\u6bdb\u75c5&#xff1a;\u6309\u4e00\u4e0b <\/p>\n<p>     <span class=\"gcb-tag\">\u540e\u7aef<\/span><br \/>\n     <span class=\"gcb-tag\">\u5fae\u670d\u52a1<\/span><br \/>\n     <span class=\"gcb-tag\">\u5b58\u50a8<\/span><br \/>\n     <span class=\"gcb-tag\">\u8ba4\u8bc1\u9274\u6743<\/span>\n      <\/li>\n<li class=\"gcb-related-item\">\n<h5 class=\"gcb-related-item-title\">Core-R-Theta&#xff1a;\u5f53\u56db\u8f74\u6781\u5750\u6807\u6280\u672f\u91cd\u65b0\u5b9a\u4e493D\u6253\u5370\u7684\u8fb9\u754c<\/h5>\n<p class=\"gcb-related-item-desc\">Core R Theta&#xff1a;\u5f53\u56db\u8f74\u6781\u5750\u6807\u6280\u672f\u91cd\u65b0\u5b9a\u4e493D\u6253\u5370\u7684\u8fb9\u754c \u60f3\u8c61\u4e00\u4e0b&#xff0c;\u5982\u679c\u4f60\u80fd\u6446\u8131\u4f20\u7edf3D\u6253\u5370\u7684\u5e73\u9762\u675f\u7f1a&#xff0c;\u8ba9\u6253\u5370\u5934\u50cf\u884c\u661f\u56f4\u7ed5\u6052\u661f\u4e00\u6837\u81ea\u7531\u65cb\u8f6c\u79fb\u52a8\u2014\u2014\u8fd9\u5c31\u662f<\/p>\n<p>     <span class=\"gcb-tag\">\u786c\u4ef6\u5f00\u53d1<\/span><br \/>\n     <span class=\"gcb-tag\">\u667a\u80fd\u786c\u4ef6<\/span><br \/>\n     <span class=\"gcb-tag\">\u5d4c\u5165\u5f0f<\/span>\n      <\/li>\n<li class=\"gcb-related-item\">\n<h5 class=\"gcb-related-item-title\">DNSSEC\u5728miekg\/dns\u4e2d\u7684\u7ec8\u6781\u5e94\u7528\u6307\u5357&#xff1a;\u4ece\u7b7e\u540d\u5230\u9a8c\u8bc1\u7684\u5b8c\u6574\u6559\u7a0b<\/h5>\n<p class=\"gcb-related-item-desc\">DNSSEC\u5728miekg\/dns\u4e2d\u7684\u7ec8\u6781\u5e94\u7528\u6307\u5357&#xff1a;\u4ece\u7b7e\u540d\u5230\u9a8c\u8bc1\u7684\u5b8c\u6574\u6559\u7a0b DNSSEC&#xff08;DNS\u5b89\u5168\u6269\u5c55&#xff09;\u4e3a\u57df\u540d\u7cfb\u7edf\u6dfb\u52a0\u4e86\u4e00\u5c42\u5b89\u5168\u4fdd\u969c&#xff0c;\u901a\u8fc7\u516c\u94a5\u52a0\u5bc6\u6280\u672f\u5bf9\u8d44\u6e90\u8bb0\u5f55<\/p>\n<p>     <span class=\"gcb-tag\">\u7f51\u7edc<\/span><br \/>\n     <span class=\"gcb-tag\">\u540e\u7aef<\/span>\n      <\/li>\n<\/ul>\n<p>  <span class=\"gcb-prev-next-label\">\u4e0a\u4e00\u7bc7&#xff1a;<\/span><br \/>\n  LyricsX macOS \u6b4c\u8bcd\u540c\u6b65\u6307\u5357&#xff1a;\u81ea\u52a8\u641c\u8bcd\u3001\u684c\u9762\u5361\u62c9OK\u3001\u5341\u79d2\u8c03\u51c6\u504f\u79fb <\/p>\n<p>  <span class=\"gcb-prev-next-label\">\u4e0b\u4e00\u7bc7&#xff1a;<\/span><br \/>\n   md2pptx&#xff1a;3\u5927\u4f18\u52bf\u8ba9\u4f605\u5206\u949f\u5b8c\u6210Markdown\u8f6cPPT\u7684\u9769\u547d\u6027\u65b9\u6848 <\/p>\n<p>\u521b\u4f5c\u58f0\u660e\uff1a\u672c\u6587\u90e8\u5206\u5185\u5bb9\u7531AI\u8f85\u52a9\u751f\u6210\uff08AIGC\uff09\uff0c\u4ec5\u4f9b\u53c2\u8003<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e91\u539f\u751f\u5fae\u670d\u52a1\u5bb9\u5668\u7f16\u6392\u8fd0\u7ef4 \u3010\u514d\u8d39\u4e0b\u8f7d\u94fe\u63a5\u3011flynn [UNMAINTAINED] A next generation open source platform as a service (PaaS) \u9879\u76ee\u5730\u5740&#xff1a; https:\/\/gitcode.com\/gh_mirrors\/fl\/flynn \u70b9\u51fb\u67e5\u770b \u514d\u8d39\u4e0b\u8f7d  \u5bfc\u8bfb<br \/>\nvendor\/github.com\/miekg\/dns \u662f\u4e00\u4e2a\u9075\u5faa\u201cLess is more\u201d\u54f2\u5b66\u3001\u53ea\u4f9d\u8d56 Go \u6807\u51c6\u5e93\u7684\u5b8c\u6574 DNS 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