{"id":14561,"date":"2025-04-18T21:18:05","date_gmt":"2025-04-18T13:18:05","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/14561.html"},"modified":"2025-04-18T21:18:05","modified_gmt":"2025-04-18T13:18:05","slug":"%e5%a6%82%e4%bd%95%e5%90%af%e5%8a%a8-linux-debian-ubuntu-%e7%ad%89-ssh-%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/14561.html","title":{"rendered":"\u5982\u4f55\u542f\u52a8 Linux Debian\/Ubuntu \u7b49 SSH \u670d\u52a1\u5668"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u5f15\u8a00<\/li>\n<li>\u6b63\u6587<\/li>\n<li>\n<ul>\n<li>\u4e00\u3001\u4ec0\u4e48\u662f SSH&#xff1f;<\/li>\n<li>\u4e8c\u3001\u5b89\u88c5 SSH \u670d\u52a1\u5668<\/li>\n<li>\u4e09\u3001\u9a8c\u8bc1 SSH \u670d\u52a1\u662f\u5426\u8fd0\u884c<\/li>\n<li>\u56db\u3001\u914d\u7f6e SSH \u670d\u52a1\u5668<\/li>\n<li>\u4e94\u3001\u4f7f\u7528 SSH \u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u670d\u52a1\u5668<\/li>\n<li>\u516d\u3001\u5b89\u5168\u4f18\u5316<\/li>\n<li>\u4e03\u3001\u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5<\/li>\n<\/ul>\n<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<h2>\u5f15\u8a00<\/h2>\n<p>SSH&#xff08;Secure Shell&#xff09;\u662f\u4e00\u79cd\u7528\u4e8e\u8fdc\u7a0b\u767b\u5f55\u548c\u6267\u884c\u547d\u4ee4\u7684\u5b89\u5168\u534f\u8bae\u3002\u5b83\u662f Linux \u7cfb\u7edf\u7ba1\u7406\u5458\u548c\u5f00\u53d1\u8005\u5e38\u7528\u7684\u5de5\u5177\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728 Debian \u548c Ubuntu \u7b49 Linux \u53d1\u884c\u7248\u4e0a\u5b89\u88c5\u3001\u914d\u7f6e\u548c\u542f\u52a8 SSH \u670d\u52a1\u5668\u3002<\/p>\n<hr \/>\n<h2>\u6b63\u6587<\/h2>\n<h3>\u4e00\u3001\u4ec0\u4e48\u662f SSH&#xff1f;<\/h3>\n<p>SSH \u662f\u4e00\u79cd\u7f51\u7edc\u534f\u8bae&#xff0c;\u7528\u4e8e\u5728\u4e0d\u5b89\u5168\u7684\u7f51\u7edc\u4e2d\u5b89\u5168\u5730\u4f20\u8f93\u6570\u636e\u3002\u5b83\u901a\u8fc7\u52a0\u5bc6\u901a\u4fe1\u901a\u9053\u6765\u4fdd\u62a4\u7528\u6237\u7684\u5bc6\u7801\u548c\u6570\u636e\u4e0d\u88ab\u7a83\u53d6\u3002SSH \u670d\u52a1\u5668\u5141\u8bb8\u7528\u6237\u901a\u8fc7\u7f51\u7edc\u8fdc\u7a0b\u767b\u5f55\u5230 Linux \u7cfb\u7edf&#xff0c;\u5e76\u6267\u884c\u5404\u79cd\u547d\u4ee4\u3002<\/p>\n<hr \/>\n<h3>\u4e8c\u3001\u5b89\u88c5 SSH \u670d\u52a1\u5668<\/h3>\n<p>\u5728 Debian\/Ubuntu \u7cfb\u7edf\u4e0a&#xff0c;\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u53ef\u80fd\u6ca1\u6709\u5b89\u88c5 SSH \u670d\u52a1\u5668\u3002\u6211\u4eec\u9700\u8981\u624b\u52a8\u5b89\u88c5\u5b83\u3002<\/p>\n<li>\u66f4\u65b0\u8f6f\u4ef6\u5305\u5217\u8868 \u5728\u5b89\u88c5\u4efb\u4f55\u8f6f\u4ef6\u4e4b\u524d&#xff0c;\u5efa\u8bae\u5148\u66f4\u65b0\u8f6f\u4ef6\u5305\u5217\u8868&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">apt<\/span> update <\/p>\n<li>\u5b89\u88c5 OpenSSH \u670d\u52a1\u5668 OpenSSH \u662f\u4e00\u4e2a\u5e7f\u6cdb\u4f7f\u7528\u7684 SSH \u5b9e\u73b0\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5 OpenSSH \u670d\u52a1\u5668&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">apt<\/span> <span class=\"token function\">install<\/span> openssh-server <\/p>\n<li>\u542f\u52a8 SSH \u670d\u52a1 \u5b89\u88c5\u5b8c\u6210\u540e&#xff0c;SSH \u670d\u52a1\u4f1a\u81ea\u52a8\u542f\u52a8\u3002\u5982\u679c\u9700\u8981\u624b\u52a8\u542f\u52a8&#xff0c;\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> systemctl start <span class=\"token function\">ssh<\/span> <\/p>\n<li>\u8bbe\u7f6e SSH \u670d\u52a1\u5f00\u673a\u81ea\u542f\u52a8 \u4e3a\u4e86\u786e\u4fdd SSH \u670d\u52a1\u5728\u7cfb\u7edf\u91cd\u542f\u540e\u81ea\u52a8\u542f\u52a8&#xff0c;\u53ef\u4ee5\u542f\u7528\u5f00\u673a\u81ea\u542f\u52a8&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> systemctl <span class=\"token builtin class-name\">enable<\/span> <span class=\"token function\">ssh<\/span> <\/p>\n<hr \/>\n<h3>\u4e09\u3001\u9a8c\u8bc1 SSH \u670d\u52a1\u662f\u5426\u8fd0\u884c<\/h3>\n<p>\u5b89\u88c5\u5e76\u542f\u52a8 SSH \u670d\u52a1\u540e&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u9a8c\u8bc1\u5176\u662f\u5426\u6b63\u5e38\u8fd0\u884c&#xff1a;<\/p>\n<li>\u68c0\u67e5 SSH \u670d\u52a1\u72b6\u6001<\/li>\n<p><span class=\"token function\">sudo<\/span> systemctl status <span class=\"token function\">ssh<\/span> <\/p>\n<p>\u5982\u679c\u663e\u793a active (running)&#xff0c;\u5219\u8868\u793a SSH \u670d\u52a1\u6b63\u5728\u8fd0\u884c\u3002<\/p>\n<li>\u67e5\u770b SSH \u7aef\u53e3\u76d1\u542c\u60c5\u51b5<\/li>\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>\u6b63\u5e38\u60c5\u51b5\u4e0b&#xff0c;\u4f1a\u770b\u5230 tcp \u7aef\u53e3 22&#xff08;\u9ed8\u8ba4 SSH \u7aef\u53e3&#xff09;\u6b63\u5728\u76d1\u542c\u3002<\/p>\n<hr \/>\n<h3>\u56db\u3001\u914d\u7f6e SSH \u670d\u52a1\u5668<\/h3>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;SSH \u670d\u52a1\u5668\u5df2\u7ecf\u53ef\u4ee5\u4f7f\u7528&#xff0c;\u4f46\u4e3a\u4e86\u5b89\u5168\u6027\u548c\u529f\u80fd\u6027&#xff0c;\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u4e00\u4e9b\u914d\u7f6e\u3002<\/p>\n<li>\u4fee\u6539 SSH \u914d\u7f6e\u6587\u4ef6 SSH \u7684\u4e3b\u914d\u7f6e\u6587\u4ef6\u4f4d\u4e8e \/etc\/ssh\/sshd_config\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668&#xff08;\u5982 vim \u6216 nano&#xff09;\u6253\u5f00\u8be5\u6587\u4ef6&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> <span class=\"token function\">nano<\/span> \/etc\/ssh\/sshd_config <\/p>\n<li>\u5e38\u89c1\u914d\u7f6e\u9009\u9879<\/li>\n<ul>\n<li>\u4fee\u6539\u9ed8\u8ba4\u7aef\u53e3 \u5982\u679c\u5e0c\u671b\u66f4\u6539\u9ed8\u8ba4\u7684 SSH \u7aef\u53e3&#xff08;22&#xff09;&#xff0c;\u53ef\u4ee5\u627e\u5230\u4ee5\u4e0b\u884c\u5e76\u4fee\u6539&#xff1a;<span class=\"token comment\">#Port 22 <\/span><br \/>\nPort <span class=\"token number\">2222<\/span>\n <\/li>\n<li>\u7981\u7528 root \u767b\u5f55 \u4e3a\u4e86\u63d0\u9ad8\u5b89\u5168\u6027&#xff0c;\u5efa\u8bae\u7981\u7528 root \u7528\u6237\u901a\u8fc7 SSH \u767b\u5f55&#xff1a;PermitRootLogin no\n <\/li>\n<li>\u542f\u7528\u516c\u94a5\u8ba4\u8bc1 \u516c\u94a5\u8ba4\u8bc1\u6bd4\u5bc6\u7801\u8ba4\u8bc1\u66f4\u5b89\u5168\u3002\u786e\u4fdd\u4ee5\u4e0b\u884c\u672a\u88ab\u6ce8\u91ca&#xff1a;PubkeyAuthentication <span class=\"token function\">yes<\/span>\n <\/li>\n<li>\u9650\u5236\u5141\u8bb8\u767b\u5f55\u7684\u7528\u6237 \u5982\u679c\u53ea\u60f3\u5141\u8bb8\u7279\u5b9a\u7528\u6237\u767b\u5f55&#xff0c;\u53ef\u4ee5\u6dfb\u52a0\u4ee5\u4e0b\u884c&#xff1a;AllowUsers username\n <\/li>\n<\/ul>\n<li>\u4fdd\u5b58\u5e76\u5e94\u7528\u914d\u7f6e \u4fee\u6539\u5b8c\u914d\u7f6e\u6587\u4ef6\u540e&#xff0c;\u4fdd\u5b58\u5e76\u9000\u51fa\u7f16\u8f91\u5668\u3002\u7136\u540e\u91cd\u542f SSH \u670d\u52a1\u4ee5\u4f7f\u66f4\u6539\u751f\u6548&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> systemctl restart <span class=\"token function\">ssh<\/span> <\/p>\n<hr \/>\n<h3>\u4e94\u3001\u4f7f\u7528 SSH \u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u670d\u52a1\u5668<\/h3>\n<p>\u5b89\u88c5\u5e76\u914d\u7f6e\u597d SSH \u670d\u52a1\u5668\u540e&#xff0c;\u53ef\u4ee5\u901a\u8fc7 SSH \u5ba2\u6237\u7aef&#xff08;\u5982 Terminal \u6216 PuTTY&#xff09;\u8fde\u63a5\u5230\u670d\u52a1\u5668\u3002<\/p>\n<li>\u4f7f\u7528\u547d\u4ee4\u884c\u8fde\u63a5 \u5728\u7ec8\u7aef\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4&#xff1a;<\/li>\n<p><span class=\"token function\">ssh<\/span> username&#064;server_ip <span class=\"token parameter variable\">-p<\/span> port_number <\/p>\n<p>\u5176\u4e2d&#xff1a;<\/p>\n<ul>\n<li>username \u662f\u670d\u52a1\u5668\u4e0a\u7684\u7528\u6237\u540d\u3002<\/li>\n<li>server_ip \u662f\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u3002<\/li>\n<li>port_number \u662f SSH \u7aef\u53e3&#xff08;\u9ed8\u8ba4\u4e3a 22&#xff09;\u3002<\/li>\n<\/ul>\n<li>\u793a\u4f8b \u5047\u8bbe\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u662f 192.168.1.100&#xff0c;\u7528\u6237\u540d\u662f user&#xff0c;\u7aef\u53e3\u662f 2222&#xff0c;\u5219\u547d\u4ee4\u5982\u4e0b&#xff1a;<\/li>\n<p><span class=\"token function\">ssh<\/span> user&#064;192.168.1.100 <span class=\"token parameter variable\">-p<\/span> <span class=\"token number\">2222<\/span> <\/p>\n<hr \/>\n<h3>\u516d\u3001\u5b89\u5168\u4f18\u5316<\/h3>\n<p>\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63d0\u9ad8 SSH \u670d\u52a1\u5668\u7684\u5b89\u5168\u6027&#xff0c;\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u63aa\u65bd&#xff1a;<\/p>\n<li>\u4f7f\u7528\u5bc6\u94a5\u8ba4\u8bc1 \u751f\u6210 SSH \u5bc6\u94a5\u5bf9\u5e76\u5c06\u5176\u5206\u53d1\u5230\u5ba2\u6237\u7aef&#xff1a;<\/li>\n<p>ssh-keygen <span class=\"token parameter variable\">-t<\/span> rsa <\/p>\n<p>\u5c06\u516c\u94a5\u590d\u5236\u5230\u670d\u52a1\u5668&#xff1a;<\/p>\n<p>ssh-copy-id username&#064;server_ip <\/p>\n<li>\u7981\u7528\u5bc6\u7801\u8ba4\u8bc1 \u5728 \/etc\/ssh\/sshd_config \u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c&#xff1a;<\/li>\n<p>PasswordAuthentication no <\/p>\n<li>\u914d\u7f6e\u9632\u706b\u5899 \u4f7f\u7528 ufw \u6216 iptables \u9632\u706b\u5899\u9650\u5236\u5bf9 SSH \u7aef\u53e3\u7684\u8bbf\u95ee\u3002\u4f8b\u5982&#xff1a;<\/li>\n<p><span class=\"token function\">sudo<\/span> ufw allow <span class=\"token number\">2222<\/span>\/tcp <\/p>\n<hr \/>\n<h3>\u4e03\u3001\u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5<\/h3>\n<li>\u8fde\u63a5\u88ab\u62d2\u7edd<\/li>\n<ul>\n<li>\u68c0\u67e5 SSH \u670d\u52a1\u662f\u5426\u6b63\u5728\u8fd0\u884c&#xff1a;<span class=\"token function\">sudo<\/span> systemctl status <span class=\"token function\">ssh<\/span>\n <\/li>\n<li>\u786e\u4fdd\u9632\u706b\u5899\u5141\u8bb8 SSH \u7aef\u53e3\u901a\u8fc7\u3002<\/li>\n<\/ul>\n<li>\u5bc6\u7801\u9519\u8bef<\/li>\n<ul>\n<li>\u786e\u4fdd\u8f93\u5165\u7684\u7528\u6237\u540d\u548c\u5bc6\u7801\u6b63\u786e\u3002<\/li>\n<li>\u68c0\u67e5 \/var\/log\/auth.log \u6587\u4ef6\u4ee5\u83b7\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<li>\u7aef\u53e3\u51b2\u7a81<\/li>\n<ul>\n<li>\u786e\u4fdd\u6ca1\u6709\u5176\u4ed6\u7a0b\u5e8f\u5360\u7528 SSH \u7aef\u53e3\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd&#xff0c;\u60a8\u5e94\u8be5\u80fd\u591f\u8f7b\u677e\u5730\u5728 Debian\/Ubuntu \u7cfb\u7edf\u4e0a\u5b89\u88c5\u3001\u914d\u7f6e\u548c\u542f\u52a8 SSH \u670d\u52a1\u5668\u3002SSH \u662f\u4e00\u4e2a\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u5de5\u5177&#xff0c;\u638c\u63e1\u5b83\u7684\u57fa\u672c\u4f7f\u7528\u548c\u914d\u7f6e\u5c06\u6781\u5927\u63d0\u5347\u60a8\u7684\u5de5\u4f5c\u6548\u7387\u548c\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.6k\u6b21\uff0c\u70b9\u8d5e21\u6b21\uff0c\u6536\u85cf8\u6b21\u3002SSH \u662f\u4e00\u79cd\u7f51\u7edc\u534f\u8bae\uff0c\u7528\u4e8e\u5728\u4e0d\u5b89\u5168\u7684\u7f51\u7edc\u4e2d\u5b89\u5168\u5730\u4f20\u8f93\u6570\u636e\u3002\u5b83\u901a\u8fc7\u52a0\u5bc6\u901a\u4fe1\u901a\u9053\u6765\u4fdd\u62a4\u7528\u6237\u7684\u5bc6\u7801\u548c\u6570\u636e\u4e0d\u88ab\u7a83\u53d6\u3002SSH \u670d\u52a1\u5668\u5141\u8bb8\u7528\u6237\u901a\u8fc7\u7f51\u7edc\u8fdc\u7a0b\u767b\u5f55\u5230 Linux 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