{"id":62486,"date":"2025-04-29T10:44:25","date_gmt":"2025-04-29T02:44:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/62486\/"},"modified":"2025-04-29T10:44:25","modified_gmt":"2025-04-29T02:44:25","slug":"%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%ef%bc%9a%e4%bd%bf%e7%94%a8%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%b7%a5%e5%85%b7%e5%a2%9e%e5%bc%ba%e4%bd%a0%e7%9a%84linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8-3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/62486\/","title":{"rendered":"\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u589e\u5f3a\u4f60\u7684Linux\u670d\u52a1\u5668\u5b89\u5168"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/169424615529162.jpg\" class=\"aligncenter\" title=\"\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u589e\u5f3a\u4f60\u7684Linux\u670d\u52a1\u5668\u5b89\u5168\u63d2\u56fe\" alt=\"\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u589e\u5f3a\u4f60\u7684Linux\u670d\u52a1\u5668\u5b89\u5168\u63d2\u56fe\" \/><\/p>\n<p>\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u589e\u5f3a\u4f60\u7684Linux\u670d\u52a1\u5668\u5b89\u5168<\/p>\n<p>\u5f15\u8a00\uff1a<br \/>Linux\u670d\u52a1\u5668\u662f\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7528\u6237\u9996\u9009\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5b83\u62e5\u6709\u51fa\u8272\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002\u7136\u800c\uff0c\u6ca1\u6709\u91c7\u53d6\u9002\u5f53\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u670d\u52a1\u5668\u4ecd\u7136\u9762\u4e34\u7740\u6f5c\u5728\u7684\u5a01\u80c1\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u589e\u5f3aLinux\u670d\u52a1\u5668\u5b89\u5168\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u5e2e\u52a9\u4f60\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u5165\u4fb5\u8005\u7684\u653b\u51fb\u3002<\/p>\n<p>\u4e00\u3001\u4f7f\u7528\u9632\u706b\u5899\u4fdd\u62a4\u670d\u52a1\u5668<\/p>\n<p>\u9632\u706b\u5899\u662f\u670d\u52a1\u5668\u5b89\u5168\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\uff0c\u5b83\u53ef\u4ee5\u8fc7\u6ee4\u7f51\u7edc\u6d41\u91cf\u5e76\u4ec5\u5141\u8bb8\u6388\u6743\u7684\u8fde\u63a5\u901a\u8fc7\u3002\u5728Linux\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528iptables\u5de5\u5177\u6765\u914d\u7f6e\u548c\u7ba1\u7406\u9632\u706b\u5899\u89c4\u5219\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\u793a\u4f8b\uff1a<\/p>\n<ol>\n<li>\n<p>\u5141\u8bb8\u7279\u5b9a\u7aef\u53e3\u7684\u8fde\u63a5\uff1a<\/p>\n<pre>iptables -A INPUT -p tcp --dport 22 -j ACCEPT\niptables -A INPUT -p tcp --dport 80 -j ACCEPT<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u62d2\u7edd\u6240\u6709\u5176\u4ed6\u8fde\u63a5\uff1a<\/p>\n<pre>iptables -P INPUT DROP<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\u548c\u76f8\u5173\u7684\u8fde\u63a5\uff1a<\/p>\n<pre>iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u663e\u793a\u5f53\u524d\u7684\u9632\u706b\u5899\u89c4\u5219\uff1a<\/p>\n<pre>iptables -L<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>\u4ee5\u4e0a\u547d\u4ee4\u53ea\u662f\u4e00\u4e9b\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u5b9a\u5236\u66f4\u590d\u6742\u7684\u89c4\u5219\u6765\u4fdd\u62a4\u670d\u52a1\u5668\u3002<\/p>\n<p>\u4e8c\u3001\u4f7f\u7528Fail2Ban\u9632\u5fa1\u66b4\u529b\u7834\u89e3<\/p>\n<p>Fail2Ban\u662f\u4e00\u6b3e\u6d41\u884c\u7684\u5165\u4fb5\u9632\u5fa1\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u68c0\u6d4b\u5230\u91cd\u590d\u767b\u5f55\u5931\u8d25\u7684\u5c1d\u8bd5\uff0c\u5e76\u5bf9\u6e90IP\u5730\u5740\u8fdb\u884c\u4e34\u65f6\u5c01\u7981\u3002\u4ee5\u4e0b\u662fFail2Ban\u7684\u5b89\u88c5\u548c\u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n<ol>\n<li>\n<p>\u5b89\u88c5Fail2Ban\uff1a<\/p>\n<pre>sudo apt-get install fail2ban<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\u914d\u7f6eFail2Ban\uff1a<br \/>\u8bf7\u7f16\u8f91\/etc\/fail2ban\/jail.conf\u6587\u4ef6\u4ee5\u542f\u7528\u548c\u914d\u7f6eFail2Ban\u89c4\u5219\u3002<\/li>\n<li>\n<p>\u542f\u52a8Fail2Ban\uff1a<\/p>\n<pre>sudo service fail2ban start<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>Fail2Ban\u5c06\u4f1a\u76d1\u89c6\u767b\u5f55\u65e5\u5fd7\u6587\u4ef6\uff08\u5982\/var\/log\/auth.log\uff09\uff0c\u5e76\u5728\u68c0\u6d4b\u5230\u66b4\u529b\u7834\u89e3\u5c1d\u8bd5\u540e\uff0c\u81ea\u52a8\u5c01\u7981\u6e90IP\u5730\u5740\u3002<\/p>\n<p>\u4e09\u3001\u4f7f\u7528SSH\u5bc6\u94a5\u767b\u5f55<\/p>\n<p>SSH\u5bc6\u94a5\u767b\u5f55\u662f\u4e00\u79cd\u66f4\u5b89\u5168\u7684\u767b\u5f55\u65b9\u5f0f\uff0c\u76f8\u8f83\u4e8e\u4f20\u7edf\u7684\u57fa\u4e8e\u5bc6\u7801\u7684\u767b\u5f55\u65b9\u5f0f\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SSH\u5bc6\u94a5\u767b\u5f55\u7684\u793a\u4f8b\uff1a<\/p>\n<ol>\n<li>\n<p>\u751f\u6210SSH\u5bc6\u94a5\uff1a<\/p>\n<pre>ssh-keygen -t rsa<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u5c06\u516c\u94a5\u590d\u5236\u5230\u670d\u52a1\u5668\uff1a<\/p>\n<pre>ssh-copy-id user@server_ip<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\u7981\u7528\u5bc6\u7801\u767b\u5f55\uff1a<br \/>\u8bf7\u7f16\u8f91\/etc\/ssh\/sshd_config\u6587\u4ef6\uff0c\u5c06PasswordAuthentication\u8bbe\u7f6e\u4e3ano\uff0c\u5e76\u91cd\u542fSSH\u670d\u52a1\u3002<\/li>\n<\/ol>\n<p>\u4f7f\u7528SSH\u5bc6\u94a5\u767b\u5f55\u540e\uff0c\u4f60\u5c06\u4e0d\u518d\u4f9d\u8d56\u4e8e\u5f31\u5bc6\u7801\uff0c\u5927\u5927\u63d0\u9ad8\u4e86\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>\u56db\u3001\u4f7f\u7528SSH\u7aef\u53e3\u8f6c\u53d1\u8fdb\u884c\u5b89\u5168\u8bbf\u95ee<\/p>\n<p>SSH\u7aef\u53e3\u8f6c\u53d1\uff08SSH port forwarding\uff09\u53ef\u4ee5\u5e2e\u52a9\u4f60\u901a\u8fc7\u52a0\u5bc6\u7684SSH\u8fde\u63a5\u5728\u672c\u5730\u548c\u8fdc\u7a0b\u4e3b\u673a\u4e4b\u95f4\u5efa\u7acb\u5b89\u5168\u7684\u901a\u4fe1\u3002\u4ee5\u4e0b\u662fSSH\u7aef\u53e3\u8f6c\u53d1\u7684\u793a\u4f8b\uff1a<\/p>\n<ol>\n<li>\n<p>\u672c\u5730\u7aef\u53e3\u8f6c\u53d1\uff1a<\/p>\n<pre>ssh -L local_port:remote_host:remote_port user@server_ip<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<li>\n<p>\u8fdc\u7a0b\u7aef\u53e3\u8f6c\u53d1\uff1a<\/p>\n<pre>ssh -R remote_port:local_host:local_port user@server_ip<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/li>\n<\/ol>\n<p>\u901a\u8fc7SSH\u7aef\u53e3\u8f6c\u53d1\uff0c\u4f60\u53ef\u4ee5\u5728\u4e0d\u76f4\u63a5\u66b4\u9732\u670d\u52a1\u5668\u7684\u60c5\u51b5\u4e0b\uff0c\u5b89\u5168\u5730\u8bbf\u95ee\u8fdc\u7a0b\u4e3b\u673a\u7684\u670d\u52a1\u3002<\/p>\n<p>\u7ed3\u8bba\uff1a<br \/>\u672c\u6587\u4ecb\u7ecd\u4e86\u4e00\u4e9b\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u589e\u5f3aLinux\u670d\u52a1\u5668\u5b89\u5168\u7684\u6700\u4f73\u5b9e\u8df5\u3002\u901a\u8fc7\u4f7f\u7528\u9632\u706b\u5899\u3001Fail2Ban\u3001SSH\u5bc6\u94a5\u767b\u5f55\u548cSSH\u7aef\u53e3\u8f6c\u53d1\u7b49\u5de5\u5177\uff0c\u4f60\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u5165\u4fb5\u7684\u653b\u51fb\u3002\u5f53\u7136\uff0c\u8fd9\u4e9b\u53ea\u662f\u670d\u52a1\u5668\u5b89\u5168\u7684\u57fa\u672c\u5b9e\u8df5\uff0c\u4e3a\u4e86\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\uff0c\u4f60\u8fd8\u9700\u8981\u5b9a\u671f\u66f4\u65b0\u8f6f\u4ef6\u5305\u3001\u4f7f\u7528\u5f3a\u5bc6\u7801\u548c\u5b9a\u671f\u5907\u4efd\u7b49\u3002\u5e0c\u671b\u8fd9\u4e9b\u5b9e\u8df5\u80fd\u591f\u5e2e\u52a9\u4f60\u5efa\u7acb\u4e00\u4e2a\u66f4\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u589e\u5f3a\u4f60\u7684Linux\u670d\u52a1\u5668\u5b89\u5168\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u589e\u5f3a\u4f60\u7684Linux\u670d\u52a1\u5668\u5b89\u5168 \u5f15\u8a00\uff1aLinux\u670d\u52a1\u5668\u662f\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7528\u6237\u9996\u9009\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5b83\u62e5\u6709\u51fa\u8272\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002\u7136\u800c\uff0c\u6ca1\u6709\u91c7\u53d6\u9002\u5f53\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u670d\u52a1\u5668\u4ecd\u7136\u9762\u4e34\u7740\u6f5c\u5728\u7684\u5a01\u80c1\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6765\u589e\u5f3aLinux\u670d\u52a1\u5668\u5b89\u5168\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u5e2e\u52a9\u4f60\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u5165\u4fb5\u8005\u7684\u653b\u51fb\u3002 \u4e00\u3001\u4f7f\u7528\u9632\u706b\u5899\u4fdd\u62a4\u670d\u52a1\u5668 \u9632\u706b\u5899\u662f\u670d\u52a1\u5668\u5b89\u5168\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\uff0c\u5b83\u53ef\u4ee5\u8fc7\u6ee4\u7f51\u7edc\u6d41\u91cf\u5e76\u4ec5\u5141\u8bb8\u6388\u6743\u7684\u8fde\u63a5\u901a\u8fc7\u3002\u5728Linux\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528iptables\u5de5\u5177\u6765\u914d\u7f6e\u548c\u7ba1\u7406\u9632\u706b\u5899\u89c4\u5219\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\u793a\u4f8b\uff1a \u5141\u8bb8\u7279\u5b9a\u7aef\u53e3\u7684\u8fde\u63a5\uff1a iptables -A INPUT -p tcp &#8211;dport 22 -j ACCEPT iptables -A INPUT -p tcp &#8211;dport 80 -j ACCEPT \u767b\u5f55\u540e\u590d\u5236 \u62d2\u7edd\u6240\u6709\u5176\u4ed6\u8fde\u63a5\uff1a iptables -P INPUT DROP \u767b\u5f55\u540e\u590d\u5236 \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\u548c\u76f8\u5173\u7684\u8fde\u63a5\uff1a iptables -A INPUT -m conntrack &#8211;ctstate ESTABLISHED,RELATED -j ACCEPT \u767b\u5f55\u540e\u590d\u5236 \u663e\u793a\u5f53\u524d\u7684\u9632\u706b\u5899\u89c4\u5219\uff1a iptables -L \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u547d\u4ee4\u53ea\u662f\u4e00\u4e9b\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u5b9a\u5236\u66f4\u590d\u6742\u7684\u89c4\u5219\u6765\u4fdd\u62a4\u670d\u52a1\u5668\u3002 \u4e8c\u3001\u4f7f\u7528Fail2Ban\u9632\u5fa1\u66b4\u529b\u7834\u89e3 Fail2Ban\u662f\u4e00\u6b3e\u6d41\u884c\u7684\u5165\u4fb5\u9632\u5fa1\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u68c0\u6d4b\u5230\u91cd\u590d\u767b\u5f55\u5931\u8d25\u7684\u5c1d\u8bd5\uff0c\u5e76\u5bf9\u6e90IP\u5730\u5740\u8fdb\u884c\u4e34\u65f6\u5c01\u7981\u3002\u4ee5\u4e0b\u662fFail2Ban\u7684\u5b89\u88c5\u548c\u914d\u7f6e\u793a\u4f8b\uff1a \u5b89\u88c5Fail2Ban\uff1a sudo apt-get install fail2ban \u767b\u5f55\u540e\u590d\u5236 \u914d\u7f6eFail2Ban\uff1a\u8bf7\u7f16\u8f91\/etc\/fail2ban\/jail.conf\u6587\u4ef6\u4ee5\u542f\u7528\u548c\u914d\u7f6eFail2Ban\u89c4\u5219\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-62486","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=62486"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62486\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=62486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=62486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=62486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}