{"id":41004,"date":"2025-05-30T17:21:33","date_gmt":"2025-05-30T09:21:33","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/41004.html"},"modified":"2025-05-30T17:21:33","modified_gmt":"2025-05-30T09:21:33","slug":"%e5%a6%82%e6%9e%9c%e6%98%af%e5%9c%a8%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84tty2%e7%bb%88%e7%ab%af%e6%80%8e%e4%b9%88%e6%9f%a5%e7%9c%8b%e7%99%bb%e9%99%86%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%9a%84ip%e5%91%a2","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/41004.html","title":{"rendered":"\u5982\u679c\u662f\u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u600e\u4e48\u67e5\u770b\u767b\u9646\u670d\u52a1\u5668\u7684IP\u5462"},"content":{"rendered":"<h2>1. \u5982\u679c\u662f\u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u600e\u4e48\u67e5\u770b\u767b\u9646\u670d\u52a1\u5668\u7684IP\u5462<\/h2>\n<p>\u5728\u670d\u52a1\u5668\u7684 tty2 \u6216\u5176\u4ed6\u7ec8\u7aef\u4f1a\u8bdd\u4e2d&#xff0c;\u8981\u67e5\u770b\u4e0e\u8be5\u670d\u52a1\u5668\u7684\u8fde\u63a5\u76f8\u5173\u7684 IP \u5730\u5740&#xff0c;\u53ef\u4ee5\u4f7f\u7528\u51e0\u79cd\u547d\u4ee4\u6765\u83b7\u53d6\u8fd9\u4e9b\u4fe1\u606f&#xff1a;<\/p>\n<h3>1.1 \u4f7f\u7528 who \u547d\u4ee4&#xff1a;<\/h3>\n<p>who \u547d\u4ee4\u53ef\u4ee5\u663e\u793a\u5f53\u524d\u767b\u5f55\u5230\u670d\u52a1\u5668\u4e0a\u7684\u7528\u6237\u4ee5\u53ca\u4ed6\u4eec\u7684\u6765\u6e90\u4fe1\u606f\u3002<\/p>\n<p><span class=\"token function\">who<\/span> <\/p>\n<p>\u8f93\u51fa\u4e2d\u4f60\u53ef\u80fd\u4f1a\u770b\u5230\u7c7b\u4f3c\u4e8e username pts\/0 YYYY-MM-DD HH:MM (IP_address) \u7684\u4fe1\u606f&#xff0c;\u5176\u4e2d IP_address \u662f\u7528\u6237\u8fde\u63a5\u5230\u670d\u52a1\u5668\u65f6\u7684\u6e90\u5730\u5740\u3002<\/p>\n<h3>1.2 \u4f7f\u7528 w \u547d\u4ee4&#xff1a;<\/h3>\n<p>w \u547d\u4ee4\u63d0\u4f9b\u4e86\u66f4\u8be6\u7ec6\u7684\u4fe1\u606f&#xff0c;\u5305\u62ec\u6bcf\u4e2a\u7528\u6237\u7684\u6d3b\u52a8\u60c5\u51b5\u3002<\/p>\n<p>w<\/p>\n<p>\u5728\u8f93\u51fa\u4e2d&#xff0c;\u4f60\u53ef\u4ee5\u770b\u5230\u8fde\u63a5\u5230\u670d\u52a1\u5668\u7684\u7528\u6237\u7684 IP \u5730\u5740\u5217\u8868\u3002<\/p>\n<h3>1.3 \u4f7f\u7528 last \u547d\u4ee4&#xff1a;<\/h3>\n<p>last \u547d\u4ee4\u53ef\u4ee5\u663e\u793a\u6700\u8fd1\u767b\u5f55\u7528\u6237\u7684\u8be6\u7ec6\u4fe1\u606f&#xff0c;\u5305\u62ec\u4ed6\u4eec\u7684 IP \u5730\u5740\u3002<\/p>\n<p>last<\/p>\n<p>\u9664\u4e86\u5f53\u524d\u4f1a\u8bdd\u5916&#xff0c;\u8fd8\u53ef\u4ee5\u67e5\u770b\u8fc7\u5f80\u7684\u767b\u5f55\u8bb0\u5f55\u3002<\/p>\n<h3>1.4 \u901a\u8fc7 ss \u6216 netstat \u547d\u4ee4&#xff1a;<\/h3>\n<p>ss \u548c netstat \u547d\u4ee4\u53ef\u4ee5\u663e\u793a\u4e0e\u670d\u52a1\u5668\u5efa\u7acb\u7684\u5f53\u524d\u8fde\u63a5&#xff0c;\u5305\u62ec\u767b\u5f55\u7528\u6237\u7684 IP \u5730\u5740\u3002<\/p>\n<p>ss <span class=\"token parameter variable\">-tn<\/span> src :22<\/p>\n<p>\u6216\u8005\u4f7f\u7528 netstat&#xff08;\u5982\u679c\u5b89\u88c5\u4e86\u8be5\u5de5\u5177&#xff09;&#xff1a;<\/p>\n<p><span class=\"token function\">netstat<\/span> <span class=\"token parameter variable\">-tn<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">grep<\/span> <span class=\"token string\">&#039;:22&#039;<\/span><\/p>\n<p>\u8fd9\u4e24\u4e2a\u547d\u4ee4\u4f1a\u5217\u51fa\u8fde\u63a5\u5230 SSH \u670d\u52a1&#xff08;\u901a\u5e38\u662f\u7aef\u53e3 22&#xff09;\u7684\u5ba2\u6237\u7aef\u7684 IP \u5730\u5740\u3002 \u8fd9\u4e9b\u5de5\u5177\u548c\u547d\u4ee4\u5e94\u8be5\u80fd\u591f\u5e2e\u52a9\u4f60\u5728\u670d\u52a1\u5668\u7684\u7ec8\u7aef\u4f1a\u8bdd\u4e2d\u67e5\u770b\u8fde\u63a5\u7528\u6237\u7684 IP \u5730\u5740\u3002\u8bf7\u6ce8\u610f&#xff0c;\u65e0\u8bba\u4f7f\u7528\u54ea\u4e2a\u547d\u4ee4&#xff0c;\u901a\u5e38\u9700\u8981\u9002\u5f53\u7684\u6743\u9650&#xff0c;\u5c24\u5176\u662f\u5f53\u4f60\u67e5\u770b\u5176\u4ed6\u7528\u6237\u8fde\u63a5\u4fe1\u606f\u65f6\u3002<\/p>\n<h2>2. \u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u5982\u4f55\u67e5\u770b\u670d\u52a1\u5668\u7684IP<\/h2>\n<p>\u5728\u670d\u52a1\u5668\u7684 tty2 \u6216\u5176\u4ed6\u7ec8\u7aef\u4e2d&#xff0c;\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770b\u670d\u52a1\u5668\u7684 IP \u5730\u5740&#xff1a;<\/p>\n<h3>2.1 \u4f7f\u7528 ip \u547d\u4ee4&#xff1a;<\/h3>\n<p>ip \u547d\u4ee4\u662f\u67e5\u770b\u7f51\u7edc\u914d\u7f6e\u7684\u73b0\u4ee3\u5de5\u5177&#xff0c;\u5efa\u8bae\u7528\u4e8e\u67e5\u770b\u7f51\u7edc\u63a5\u53e3\u7684 IP \u5730\u5740\u3002<\/p>\n<p><span class=\"token function\">ip<\/span> addr show<\/p>\n<p>\u6216\u8005\u7b80\u5316\u8f93\u51fa&#xff1a;<\/p>\n<p><span class=\"token function\">ip<\/span> <span class=\"token parameter variable\">-brief<\/span> addr<\/p>\n<p>\u4f60\u9700\u8981\u5bfb\u627e inet \u5f00\u5934\u7684\u884c&#xff0c;\u8fd9\u884c\u4f1a\u663e\u793a\u63a5\u53e3\u7684 IP \u5730\u5740\u3002<\/p>\n<h3>2.2 \u4f7f\u7528 ifconfig \u547d\u4ee4&#xff1a;<\/h3>\n<p>\u5728\u67d0\u4e9b\u7cfb\u7edf\u4e2d&#xff0c;ifconfig \u4ecd\u7136\u53ef\u7528&#xff0c;\u5b83\u4e5f\u662f\u4e00\u4e2a\u4f20\u7edf\u7684\u7528\u4e8e\u67e5\u770b\u7f51\u7edc\u63a5\u53e3\u8be6\u7ec6\u4fe1\u606f\u7684\u5de5\u5177\u3002<\/p>\n<p><span class=\"token function\">ifconfig<\/span><\/p>\n<p>\u8bf7\u67e5\u627e\u5bf9\u8c61\u662finet addr: \u6807\u7b7e\u4e0b\u7684\u884c&#xff0c;\u8fd9\u4e2a\u884c\u662f\u5bf9\u5e94\u7684 IP \u5730\u5740\u3002<\/p>\n<p>\u8bf7\u6ce8\u610f&#xff0c;\u6839\u636e\u4f60\u7684\u7f51\u7edc\u914d\u7f6e&#xff0c;\u670d\u52a1\u5668\u53ef\u80fd\u6709\u591a\u4e2a\u63a5\u53e3&#xff08;\u4f8b\u5982 eth0, eth1, ens33, wlan0&#xff09;&#xff0c;\u5b83\u4eec\u53ef\u80fd\u4f1a\u5206\u914d\u6709\u4e0d\u540c\u7684 IP \u5730\u5740&#xff08;\u4f8b\u5982&#xff0c;\u4e00\u4e2a\u7528\u4e8e\u5185\u90e8\u7f51\u7edc&#xff0c;\u4e00\u4e2a\u7528\u4e8e\u5916\u90e8\u7f51\u7edc&#xff09;\u3002\u8981\u67e5\u770b\u7279\u5b9a\u63a5\u53e3\u7684 IP \u5730\u5740&#xff0c;\u53ef\u4ee5\u6307\u5b9a\u63a5\u53e3\u540d&#xff0c;\u4f8b\u5982&#xff1a;<\/p>\n<p>\u4f7f\u7528 ip&#xff1a;<\/p>\n<p><span class=\"token function\">ip<\/span> addr show eth0<\/p>\n<p>\u4f7f\u7528 ifconfig&#xff1a;<\/p>\n<p><span class=\"token function\">ifconfig<\/span> eth0<\/p>\n<p>\u5728\u8f83\u65b0\u7684\u7cfb\u7edf\u4e0a&#xff0c;ip \u547d\u4ee4\u901a\u5e38\u662f\u9ed8\u8ba4\u5b89\u88c5\u4e0e\u63a8\u8350\u4f7f\u7528\u7684\u547d\u4ee4\u5de5\u5177&#xff0c;ifconfig \u53ef\u80fd\u9700\u8981\u624b\u52a8\u5b89\u88c5 net-tools \u5305\u624d\u80fd\u4f7f\u7528\u3002<\/p>\n<h2>3. \u5229\u7528\u67e5\u5230\u7684\u670d\u52a1\u5668\u7684IP\u767b\u9646\u4e0d\u4e0a<\/h2>\n<p>\u5982\u679c\u4f60\u4f7f\u7528\u67e5\u5230\u7684\u670d\u52a1\u5668 IP \u5730\u5740\u65e0\u6cd5\u767b\u5f55&#xff0c;\u53ef\u80fd\u7531\u4ee5\u4e0b\u51e0\u4e2a\u539f\u56e0\u5bfc\u81f4\u7684\u3002\u53ef\u4ee5\u6309\u6b65\u9aa4\u8fdb\u884c\u6392\u67e5&#xff1a;<\/p>\n<h3>3.1 \u7f51\u7edc\u8fde\u63a5\u95ee\u9898&#xff1a;<\/h3>\n<p>\u786e\u4fdd\u5ba2\u6237\u7aef\u8bbe\u5907\u4e0e\u670d\u52a1\u5668\u5728\u540c\u4e00\u4e2a\u7f51\u7edc\u4e0a&#xff0c;\u5c24\u5176\u662f\u5728\u4f7f\u7528\u5c40\u57df\u7f51 IP \u5730\u5740\u65f6\u3002 \u68c0\u67e5\u7f51\u7edc\u662f\u5426\u6b63\u5e38\u8fde\u63a5&#xff0c;\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\u7b49\u7f51\u7edc\u8bbe\u5907\u662f\u5426\u5de5\u4f5c\u6b63\u5e38\u3002<\/p>\n<h3>3.2 SSH \u670d\u52a1\u95ee\u9898&#xff1a;<\/h3>\n<p>\u786e\u4fdd\u670d\u52a1\u5668\u4e0a\u7684 SSH \u670d\u52a1\u6b63\u5728\u8fd0\u884c\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b SSH \u670d\u52a1\u72b6\u6001&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> systemctl status <span class=\"token function\">ssh<\/span><\/p>\n<p>\u5982\u679c\u670d\u52a1\u6ca1\u6709\u8fd0\u884c&#xff0c;\u53ef\u4ee5\u542f\u7528\u5b83&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> systemctl start <span class=\"token function\">ssh<\/span><\/p>\n<p>\u786e\u4fdd SSH \u4e0d\u5728\u975e\u9ed8\u8ba4\u7aef\u53e3\u4e0a\u8fd0\u884c&#xff08;\u9ed8\u8ba4\u7aef\u53e3\u662f 22&#xff09;\u3002\u5982\u679c SSH \u88ab\u914d\u7f6e\u5728\u4e0d\u540c\u7aef\u53e3\u4e0a&#xff0c;\u4f60\u9700\u8981\u5728\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\u6307\u5b9a\u8be5\u7aef\u53e3\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token function\">ssh<\/span> user&#064;hostname <span class=\"token parameter variable\">-p<\/span> port_number <\/p>\n<h3>3.3 \u9632\u706b\u5899\u914d\u7f6e\u95ee\u9898&#xff1a;<\/h3>\n<p>\u68c0\u67e5\u670d\u52a1\u5668\u4e0a\u7684\u9632\u706b\u5899\u914d\u7f6e&#xff0c;\u786e\u4fdd\u5141\u8bb8 SSH \u7aef\u53e3&#xff08;\u901a\u5e38\u662f 22&#xff09;\u3002\u4f7f\u7528 ufw&#xff0c;\u53ef\u4ee5\u67e5\u770b\u89c4\u5219&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> ufw status<\/p>\n<p>\u786e\u4fdd\u6709\u7c7b\u4f3c\u4e8e 22\/tcp ALLOW \u7684\u89c4\u5219\u3002\u5982\u679c\u6ca1\u6709&#xff0c;\u8bf7\u6dfb\u52a0&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> ufw allow <span class=\"token number\">22<\/span>\/tcp<\/p>\n<h3>3.4 IP \u5730\u5740\u95ee\u9898&#xff1a;<\/h3>\n<p>\u786e\u8ba4\u8bfb\u53d6\u7684 IP \u5730\u5740\u662f\u5426\u6b63\u786e\u3002\u8fd9\u53ef\u4ee5\u5728\u4e3b\u673a\u4e0a\u4f7f\u7528 ip addr show\u65f6\u68c0\u67e5\u8fd4\u56de\u7684\u63a5\u53e3\u4fe1\u606f&#xff0c;\u786e\u8ba4 IP \u5730\u5740\u6ca1\u6709\u9519\u3002<\/p>\n<h3>3.5 \u7528\u6237\u51ed\u8bc1\u95ee\u9898&#xff1a;<\/h3>\n<p>\u68c0\u67e5\u767b\u5f55\u4f7f\u7528\u7684\u7528\u6237\u540d\u662f\u5426\u6b63\u786e&#xff0c;\u8fd8\u6709 SSH \u5bc6\u94a5\u6216\u5bc6\u7801\u662f\u5426\u6b63\u786e\u3002 \u53ef\u80fd\u662f SSH \u5bc6\u94a5\u6743\u9650\u95ee\u9898&#xff0c;\u786e\u4fdd\u79c1\u94a5\u6587\u4ef6\u7684\u6743\u9650\u8bbe\u7f6e\u6b63\u786e&#xff08;\u5e94\u8be5\u662f 600&#xff09;\u3002<\/p>\n<h3>3.6 DNS \u89e3\u6790\u95ee\u9898&#xff1a;<\/h3>\n<p>\u5982\u679c\u901a\u8fc7\u4e3b\u673a\u540d\u800c\u975e\u76f4\u63a5 IP \u5730\u5740\u8fde\u63a5&#xff0c;\u786e\u8ba4\u5ba2\u6237\u7aef\u7684 DNS \u89e3\u6790\u662f\u5426\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n<p>\u5982\u679c\u4e0a\u8ff0\u6b65\u9aa4\u4ecd\u7136\u65e0\u6cd5\u89e3\u51b3\u95ee\u9898&#xff0c;\u53ef\u4ee5\u67e5\u770b\u670d\u52a1\u5668\u4e0a\u7684\u65e5\u5fd7\u6587\u4ef6\u4ee5\u83b7\u5f97\u66f4\u591a\u8bca\u65ad\u4fe1\u606f\u3002\u4f8b\u5982&#xff0c;\u68c0\u67e5\/var\/log\/auth.log&#xff08;\u6216 \/var\/log\/secure \u5728 CentOS \u548c Red Hat \u7cfb\u7edf\u4e0a&#xff09;&#xff0c;\u8fd9\u53ef\u80fd\u4f1a\u63d0\u4f9b\u6709\u5173 SSH \u767b\u5f55\u5c1d\u8bd5\u7684\u8be6\u7ec6\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<h2>4. \u6211\u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u80fd\u591fssh\u767b\u9646&#xff0c;\u4f46\u662f\u7528\u5176\u4ed6\u7535\u8111\u767b\u4e0d\u4e0a<\/h2>\n<p>\u5982\u679c\u4f60\u80fd\u591f\u4ece\u670d\u52a1\u5668\u7684 tty2 \u7ec8\u7aef\u6210\u529f\u8fdb\u884c SSH \u767b\u5f55&#xff0c;\u4f46\u4ece\u5176\u4ed6\u8ba1\u7b97\u673a\u5219\u4e0d\u884c&#xff0c;\u53ef\u80fd\u7684\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848\u5982\u4e0b&#xff1a;<\/p>\n<h3>4.1 \u68c0\u67e5\u670d\u52a1\u5668\u9632\u706b\u5899\u8bbe\u7f6e&#xff1a;<\/h3>\n<p>\u670d\u52a1\u5668\u53ef\u80fd\u914d\u7f6e\u4e86\u9632\u706b\u5899&#xff0c;\u4f7f\u5f97\u5916\u90e8\u8bbe\u5907\u65e0\u6cd5\u901a\u8fc7 SSH \u8fde\u63a5\u3002\u68c0\u67e5\u5e76\u786e\u4fdd\u9632\u706b\u5899\u5141\u8bb8 SSH \u5728\u9ed8\u8ba4\u7aef\u53e3 22 \u4e0a&#xff08;\u6216\u4f60\u914d\u7f6e\u7684\u5176\u4ed6\u7aef\u53e3&#xff09;\u8fdb\u884c\u8fde\u63a5\u3002 \u4f7f\u7528 ufw \u7684\u8bdd&#xff0c;\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u5e76\u8bbe\u7f6e\u89c4\u5219&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> ufw status<\/p>\n<p>\u786e\u8ba4\u6709 22\/tcp ALLOW \u8fd9\u6837\u7684\u6761\u76ee\u3002\u5982\u679c\u6ca1\u6709&#xff0c;\u6267\u884c&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> ufw allow <span class=\"token number\">22<\/span>\/tcp<\/p>\n<p>\u5982\u679c\u4f7f\u7528\u4e86\u5176\u4ed6\u9632\u706b\u5899\u5de5\u5177&#xff0c;\u5982 iptables&#xff0c;\u5219\u9700\u76f8\u5e94\u8c03\u6574\u89c4\u5219\u3002<\/p>\n<h3>4.2 SSH \u7aef\u53e3\u914d\u7f6e&#xff1a;<\/h3>\n<p>\u786e\u8ba4 SSH \u670d\u52a1\u5728\u671f\u5f85\u7684\u7aef\u53e3\u53f7\u4e0a\u76d1\u542c\u3002\u5982\u679c\u66f4\u6539\u4e86\u9ed8\u8ba4\u7aef\u53e3 22&#xff0c;\u6bd4\u5982\u5728 sshd_config \u6587\u4ef6\u4e2d&#xff0c;\u5c06\u7aef\u53e3\u6539\u4e3a 2222&#xff0c;\u9700\u8981\u786e\u4fdd\u8fd9\u76f8\u540c\u7684\u7aef\u53e3\u5728\u767b\u5f55\u65f6\u4e5f\u4f7f\u7528\u3002 \u914d\u7f6e\u6587\u4ef6\u4f4d\u4e8e \/etc\/ssh\/sshd_config&#xff0c;\u68c0\u67e5\u5176\u4e2d\u7684 Port \u8bbe\u7f6e\u3002<\/p>\n<h3>4.3 \u7f51\u7edc\u8fde\u63a5\u95ee\u9898&#xff1a;<\/h3>\n<p>\u786e\u4fdd\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u5728\u5916\u90e8\u7f51\u7edc\u4e2d\u53ef\u8bbf\u95ee\u3002\u53ef\u80fd\u662f\u56e0\u4e3a\u8def\u7531\u5668\u8bbe\u7f6e\u6216\u7f51\u7edc\u8303\u56f4\u9650\u5236&#xff0c;\u5bfc\u81f4\u65e0\u6cd5\u8bbf\u95ee\u3002 \u4f7f\u7528 ping \u547d\u4ee4\u4ece\u5ba2\u6237\u7aef\u8ba1\u7b97\u673a\u4e0a\u5c1d\u8bd5 ping \u8be5 IP \u5730\u5740&#xff0c;\u4ee5\u68c0\u67e5\u57fa\u672c\u8fde\u901a\u6027\u3002<\/p>\n<h3>4.4 \u670d\u52a1\u72b6\u6001\u68c0\u67e5&#xff1a;<\/h3>\n<p>\u786e\u5b9a SSH \u670d\u52a1\u6b63\u5728\u8fd0\u884c\u5e76\u76d1\u542c\u6240\u6709\u63a5\u53e3&#xff0c;\u800c\u4e0d\u53ea\u662f\u672c\u5730\u3002\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b SSH \u670d\u52a1\u76d1\u542c\u7684\u63a5\u53e3&#xff1a;<\/p>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">netstat<\/span> <span class=\"token parameter variable\">-tuln<\/span> <span class=\"token operator\">|<\/span> <span class=\"token function\">grep<\/span> <span class=\"token function\">ssh<\/span><\/p>\n<p>\u786e\u4fdd\u8f93\u51fa\u5305\u542b 0.0.0.0:22 \u6216 ::0:22 \u8868\u793a\u76d1\u542c\u6240\u6709 IPv4 \u6216 IPv6 \u5730\u5740\u3002<\/p>\n<h3>4.5 \u67e5\u770b\u65e5\u5fd7\u6587\u4ef6&#xff1a;<\/h3>\n<p>\u68c0\u67e5\u670d\u52a1\u5668\u65e5\u5fd7\u4ee5\u83b7\u53d6\u66f4\u591a\u9519\u8bef\u4fe1\u606f\u548c\u5c1d\u8bd5\u7ec6\u8282&#xff08;\u5982 \/var\/log\/auth.log \u6216 \/var\/log\/secure&#xff09;&#xff0c;\u7279\u522b\u662f\u5173\u4e8e\u62d2\u7edd\u8fde\u63a5\u6216\u8ba4\u8bc1\u5931\u8d25\u7684\u8bb0\u5f55\u3002<\/p>\n<h3>4.6 \u8def\u7531\u5668\/\u7f51\u7edc\u914d\u7f6e&#xff1a;<\/h3>\n<p>\u5982\u679c\u5728\u4e00\u4e2a\u5728\u5177\u6709 NAT \u7684\u7f51\u7edc\u4e2d\u5de5\u4f5c&#xff0c;\u786e\u4fdd\u8def\u7531\u5668\u6b63\u786e\u5730\u8f6c\u53d1\u7aef\u53e3&#xff08;\u5373\u7aef\u53e3\u8f6c\u53d1\u6216 DMZ \u8bbe\u7f6e&#xff09;\u4ee5\u5141\u8bb8\u5916\u90e8\u8bbf\u95ee\u670d\u52a1\u5668\u3002<\/p>\n<p>\u901a\u8fc7\u68c0\u67e5\u4ee5\u4e0a\u8fd9\u4e9b\u8bbe\u7f6e\u548c\u914d\u7f6e&#xff0c;\u4f60\u5e94\u8be5\u80fd\u591f\u627e\u51fa\u5e76\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u5982\u679c\u8fd9\u4e9b\u63aa\u65bd\u90fd\u6ca1\u6709\u89e3\u51b3\u95ee\u9898&#xff0c;\u53ef\u4ee5\u91cd\u65b0\u8bc4\u4f30\u7f51\u7edc\u57fa\u7840\u8bbe\u65bd\u6765\u786e\u4fdd\u65e0\u8bef\u8fde\u63a5\u548c\u8bbf\u95ee\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e7\u6b21\uff0c\u6536\u85cf3\u6b21\u30021. \u5982\u679c\u662f\u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u600e\u4e48\u67e5\u770b\u767b\u9646\u670d\u52a1\u5668\u7684IP\u54622. \u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u5982\u4f55\u67e5\u770b\u670d\u52a1\u5668\u7684IP3. \u5229\u7528\u67e5\u5230\u7684\u670d\u52a1\u5668\u7684IP\u767b\u9646\u4e0d\u4e0a4. \u6211\u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u80fd\u591fssh\u767b\u9646\uff0c\u4f46\u662f\u7528\u5176\u4ed6\u7535\u8111\u767b\u4e0d\u4e0a<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3764,3435,43],"topic":[],"class_list":["post-41004","post","type-post","status-publish","format-standard","hentry","category-server","tag-tty2","tag-3435","tag-43"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5982\u679c\u662f\u5728\u670d\u52a1\u5668\u7684tty2\u7ec8\u7aef\u600e\u4e48\u67e5\u770b\u767b\u9646\u670d\u52a1\u5668\u7684IP\u5462 - \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\" 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