{"id":62404,"date":"2025-04-29T14:54:12","date_gmt":"2025-04-29T06:54:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/62404\/"},"modified":"2025-04-29T14:54:12","modified_gmt":"2025-04-29T06:54:12","slug":"%e5%91%bd%e4%bb%a4%e8%a1%8c%e6%98%af%e4%bd%a0%e7%9a%84%e9%98%b2%e5%be%a1%e6%ad%a6%e5%99%a8%ef%bc%9a%e4%bf%9d%e6%8a%a4%e4%bd%a0%e7%9a%84linux%e6%9c%8d%e5%8a%a1%e5%99%a8-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/62404\/","title":{"rendered":"\u547d\u4ee4\u884c\u662f\u4f60\u7684\u9632\u5fa1\u6b66\u5668\uff1a\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/169415200860761.jpg\" class=\"aligncenter\" title=\"\u547d\u4ee4\u884c\u662f\u4f60\u7684\u9632\u5fa1\u6b66\u5668\uff1a\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u63d2\u56fe\" alt=\"\u547d\u4ee4\u884c\u662f\u4f60\u7684\u9632\u5fa1\u6b66\u5668\uff1a\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u63d2\u56fe\" \/><\/p>\n<p>\u547d\u4ee4\u884c\u662f\u4f60\u7684\u9632\u5fa1\u6b66\u5668\uff1a\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668<\/p>\n<p>\u968f\u7740\u8ba1\u7b97\u673a\u6280\u672f\u7684\u5feb\u901f\u53d1\u5c55\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7684\u9996\u9009\u3002\u7136\u800c\uff0c\u968f\u4e4b\u800c\u6765\u7684\u662f\u7f51\u7edc\u5b89\u5168\u5a01\u80c1\u7684\u589e\u52a0\u3002\u4e3a\u4e86\u4fdd\u62a4\u6211\u4eec\u7684\u670d\u52a1\u5668\u514d\u53d7\u9ed1\u5ba2\u548c\u6076\u610f\u8f6f\u4ef6\u7684\u653b\u51fb\uff0c\u6211\u4eec\u9700\u8981\u5229\u7528\u4e00\u4e9b\u5f3a\u5927\u7684\u5de5\u5177\u548c\u6280\u672f\u3002\u800c\u547d\u4ee4\u884c\u6b63\u662f\u6211\u4eec\u7684\u9632\u5fa1\u6b66\u5668\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u884c\u5de5\u5177\u548c\u6280\u5de7\uff0c\u5e2e\u52a9\u4f60\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u3002<\/p>\n<ol>\n<li>iptables\uff1a\u9632\u706b\u5899\u7684\u5229\u5668<\/li>\n<\/ol>\n<p>iptables\u662fLinux\u7cfb\u7edf\u4e2d\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u9632\u706b\u5899\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8fc7\u6ee4\u548c\u7ba1\u7406\u7f51\u7edc\u6d41\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\uff1a<\/p>\n<ul>\n<li>\u67e5\u770b\u5f53\u524d\u7684iptables\u89c4\u5219\uff1a<\/li>\n<\/ul>\n<pre>iptables -L<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u5141\u8bb8\u7279\u5b9a\u7aef\u53e3\u7684\u8fdb\u5165\u548c\u79bb\u5f00\uff1a<\/li>\n<\/ul>\n<pre>iptables -A INPUT -p tcp --dport 80 -j ACCEPT\niptables -A OUTPUT -p tcp --sport 80 -j ACCEPT<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u7981\u6b62\u7279\u5b9aIP\u5730\u5740\u7684\u8bbf\u95ee\uff1a<\/li>\n<\/ul>\n<pre>iptables -A INPUT -s 192.168.1.100 -j DROP<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u963b\u6b62\u7279\u5b9a\u7aef\u53e3\u7684\u6240\u6709\u8fdb\u5165\u548c\u79bb\u5f00\uff1a<\/li>\n<\/ul>\n<pre>iptables -A INPUT -p tcp --dport 22 -j DROP\niptables -A OUTPUT -p tcp --sport 22 -j DROP<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>fail2ban\uff1a\u81ea\u52a8\u963b\u6b62\u6076\u610fIP<\/li>\n<\/ol>\n<p>fail2ban\u662f\u4e00\u6b3e\u81ea\u52a8\u5316\u963b\u6b62IP\u7684\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u6839\u636e\u5931\u8d25\u7684\u767b\u5f55\u5c1d\u8bd5\u6b21\u6570\u81ea\u52a8\u963b\u6b62\u6076\u610fIP\u5730\u5740\u3002\u6211\u4eec\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u5b89\u88c5\u548c\u914d\u7f6efail2ban\uff1a<\/p>\n<ul>\n<li>\u5b89\u88c5fail2ban\uff1a<\/li>\n<\/ul>\n<pre>sudo apt-get install fail2ban<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6\uff1a<\/li>\n<\/ul>\n<pre>sudo vi \/etc\/fail2ban\/jail.local<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5728\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre>[sshd]\nenabled = true\nport = 22\nfilter = sshd\nlogpath = \/var\/log\/auth.log\nmaxretry = 3<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u542f\u52a8fail2ban\u670d\u52a1\uff1a<\/li>\n<\/ul>\n<pre>sudo systemctl start fail2ban\nsudo systemctl enable fail2ban<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u9a8c\u8bc1\u662f\u5426\u751f\u6548\uff1a<\/li>\n<\/ul>\n<pre>sudo fail2ban-client status sshd<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>SSH\u914d\u7f6e\uff1a\u589e\u52a0\u5b89\u5168\u6027<\/li>\n<\/ol>\n<p>\u901a\u8fc7\u914d\u7f6eSSH\u670d\u52a1\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684SSH\u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n<ul>\n<li>\u4fee\u6539SSH\u9ed8\u8ba4\u7aef\u53e3\uff1a<\/li>\n<\/ul>\n<p>\u7f16\u8f91SSH\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre>sudo vi \/etc\/ssh\/sshd_config<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u627e\u5230\u4ee5\u4e0b\u884c\u5e76\u4fee\u6539\u4e3a\u4f60\u60f3\u8981\u7684\u7aef\u53e3\u53f7\uff08\u4f8b\u59822222\uff09\uff1a<\/p>\n<pre>#Port 22\nPort 2222<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u7981\u6b62root\u7528\u6237\u8fdc\u7a0b\u767b\u5f55\uff1a<\/li>\n<\/ul>\n<p>\u5728SSH\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre>PermitRootLogin no<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u914d\u7f6eSSH\u8bbf\u95ee\u9650\u5236\uff1a<\/li>\n<\/ul>\n<p>\u5728SSH\u914d\u7f6e\u6587\u4ef6\u7684\u672b\u5c3e\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff0c\u4ec5\u5141\u8bb8\u6307\u5b9a\u7684IP\u5730\u5740\u8bbf\u95eeSSH\u670d\u52a1\u5668\uff1a<\/p>\n<pre>AllowUsers user1@192.168.1.1 user2@192.168.1.2<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>\u91cd\u542fSSH\u670d\u52a1\u5668\uff1a<\/li>\n<\/ul>\n<pre>sudo systemctl restart sshd<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u4f7f\u7528\u5f3a\u5bc6\u7801\uff1a\u589e\u52a0\u5e10\u6237\u5b89\u5168<\/li>\n<\/ol>\n<p>\u5f31\u5bc6\u7801\u662f\u9ed1\u5ba2\u653b\u51fb\u7684\u4e00\u9879\u5e38\u89c1\u76ee\u6807\u3002\u4e3a\u4e86\u4fdd\u62a4\u6211\u4eec\u7684\u670d\u52a1\u5668\uff0c\u6211\u4eec\u5e94\u8be5\u4f7f\u7528\u5f3a\u5bc6\u7801\u7b56\u7565\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u751f\u6210\u548c\u4f7f\u7528\u5f3a\u5bc6\u7801\u7684\u6280\u5de7\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u5305\u542b\u5927\u5c0f\u5199\u5b57\u6bcd\u3001\u6570\u5b57\u548c\u7279\u6b8a\u5b57\u7b26\u7684\u957f\u5bc6\u7801\u3002<\/li>\n<li>\u4f7f\u7528\u5bc6\u7801\u7ba1\u7406\u5de5\u5177\uff0c\u5982KeePassXC\u6216LastPass\uff0c\u751f\u6210\u548c\u5b58\u50a8\u590d\u6742\u5bc6\u7801\u3002<\/li>\n<li>\u5b9a\u671f\u66f4\u6539\u5bc6\u7801\uff0c\u5e76\u907f\u514d\u5728\u591a\u4e2a\u7f51\u7ad9\u548c\u670d\u52a1\u4e2d\u91cd\u590d\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u7801\u3002<\/li>\n<\/ul>\n<ol>\n<li>\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f<\/li>\n<\/ol>\n<p>\u4fdd\u6301\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u7684\u6700\u65b0\u7248\u672c\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u66f4\u65b0\u901a\u5e38\u5305\u542b\u4e86\u4fee\u590d\u5b89\u5168\u6f0f\u6d1e\u548c\u5f3a\u5316\u5b89\u5168\u6027\u7684\u8865\u4e01\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u66f4\u65b0\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\uff1a<\/p>\n<ul>\n<li>Ubuntu\/Debian\u7cfb\u7edf\uff1a<\/li>\n<\/ul>\n<pre>sudo apt-get update\nsudo apt-get upgrade<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ul>\n<li>CentOS\/RHEL\u7cfb\u7edf\uff1a<\/li>\n<\/ul>\n<pre>sudo yum update<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u603b\u7ed3\uff1a<\/p>\n<p>\u4fdd\u62a4Linux\u670d\u52a1\u5668\u514d\u53d7\u9ed1\u5ba2\u548c\u6076\u610f\u8f6f\u4ef6\u7684\u653b\u51fb\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u901a\u8fc7\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u548c\u6280\u5de7\uff0c\u6211\u4eec\u53ef\u4ee5\u589e\u5f3a\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u65e0\u8bba\u662f\u901a\u8fc7\u914d\u7f6e\u9632\u706b\u5899\uff0c\u4f7f\u7528\u81ea\u52a8\u963b\u6b62\u6076\u610fIP\u7684\u5de5\u5177\uff0c\u8fd8\u662f\u6539\u5584SSH\u914d\u7f6e\u548c\u4f7f\u7528\u5f3a\u5bc6\u7801\uff0c\u90fd\u53ef\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u6700\u540e\uff0c\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u4ee5\u786e\u4fdd\u4f60\u7684\u670d\u52a1\u5668\u59cb\u7ec8\u5177\u5907\u6700\u65b0\u7684\u5b89\u5168\u6027\u8865\u4e01\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u547d\u4ee4\u884c\u662f\u4f60\u7684\u9632\u5fa1\u6b66\u5668\uff1a\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\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>\u547d\u4ee4\u884c\u662f\u4f60\u7684\u9632\u5fa1\u6b66\u5668\uff1a\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668 \u968f\u7740\u8ba1\u7b97\u673a\u6280\u672f\u7684\u5feb\u901f\u53d1\u5c55\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7684\u9996\u9009\u3002\u7136\u800c\uff0c\u968f\u4e4b\u800c\u6765\u7684\u662f\u7f51\u7edc\u5b89\u5168\u5a01\u80c1\u7684\u589e\u52a0\u3002\u4e3a\u4e86\u4fdd\u62a4\u6211\u4eec\u7684\u670d\u52a1\u5668\u514d\u53d7\u9ed1\u5ba2\u548c\u6076\u610f\u8f6f\u4ef6\u7684\u653b\u51fb\uff0c\u6211\u4eec\u9700\u8981\u5229\u7528\u4e00\u4e9b\u5f3a\u5927\u7684\u5de5\u5177\u548c\u6280\u672f\u3002\u800c\u547d\u4ee4\u884c\u6b63\u662f\u6211\u4eec\u7684\u9632\u5fa1\u6b66\u5668\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u884c\u5de5\u5177\u548c\u6280\u5de7\uff0c\u5e2e\u52a9\u4f60\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u3002 iptables\uff1a\u9632\u706b\u5899\u7684\u5229\u5668 iptables\u662fLinux\u7cfb\u7edf\u4e2d\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u9632\u706b\u5899\u5de5\u5177\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8fc7\u6ee4\u548c\u7ba1\u7406\u7f51\u7edc\u6d41\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\uff1a \u67e5\u770b\u5f53\u524d\u7684iptables\u89c4\u5219\uff1a iptables -L \u767b\u5f55\u540e\u590d\u5236 \u5141\u8bb8\u7279\u5b9a\u7aef\u53e3\u7684\u8fdb\u5165\u548c\u79bb\u5f00\uff1a iptables -A INPUT -p tcp &#8211;dport 80 -j ACCEPT iptables -A OUTPUT -p tcp &#8211;sport 80 -j ACCEPT \u767b\u5f55\u540e\u590d\u5236 \u7981\u6b62\u7279\u5b9aIP\u5730\u5740\u7684\u8bbf\u95ee\uff1a iptables -A INPUT -s 192.168.1.100 -j DROP \u767b\u5f55\u540e\u590d\u5236 \u963b\u6b62\u7279\u5b9a\u7aef\u53e3\u7684\u6240\u6709\u8fdb\u5165\u548c\u79bb\u5f00\uff1a iptables -A INPUT -p tcp &#8211;dport 22 -j DROP iptables -A OUTPUT -p tcp &#8211;sport 22 -j [&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-62404","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62404","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=62404"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62404\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=62404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=62404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=62404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}