{"id":16976,"date":"2024-11-18T09:35:27","date_gmt":"2024-11-18T01:35:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16976\/"},"modified":"2024-11-18T09:35:27","modified_gmt":"2024-11-18T01:35:27","slug":"%e6%90%ad%e5%bb%ba%e5%ae%89%e5%85%a8%e7%9a%84linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%8e%af%e5%a2%83%ef%bc%9a%e6%8e%8c%e6%8f%a1%e8%bf%99%e4%ba%9b%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16976\/","title":{"rendered":"\u642d\u5efa\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\uff1a\u638c\u63e1\u8fd9\u4e9b\u547d\u4ee4"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/465\/014\/169424750960333.jpg\" class=\"aligncenter\" title=\"\u642d\u5efa\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\uff1a\u638c\u63e1\u8fd9\u4e9b\u547d\u4ee4\u63d2\u56fe\" alt=\"\u642d\u5efa\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\uff1a\u638c\u63e1\u8fd9\u4e9b\u547d\u4ee4\u63d2\u56fe\" \/><\/p>\n<p>\u642d\u5efa\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\uff1a\u638c\u63e1\u8fd9\u4e9b\u547d\u4ee4<\/p>\n<p>\u5728\u5f53\u524d\u4fe1\u606f\u65f6\u4ee3\uff0c\u7f51\u7edc\u5b89\u5168\u95ee\u9898\u6210\u4e3a\u4e86\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u8bdd\u9898\u3002\u4f5c\u4e3a\u670d\u52a1\u5668\u7ba1\u7406\u5458\u6216\u8005\u4e91\u8ba1\u7b97\u4ece\u4e1a\u8005\uff0c\u642d\u5efa\u4e00\u4e2a\u5b89\u5168\u53ef\u9760\u7684\u670d\u52a1\u5668\u73af\u5883\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5fc5\u5907\u7684Linux\u547d\u4ee4\uff0c\u5e2e\u52a9\u4f60\u642d\u5efa\u4e00\u4e2a\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\u3002<\/p>\n<ol>\n<li>\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6<\/li>\n<\/ol>\n<p>\u9996\u5148\uff0c\u4fdd\u6301\u64cd\u4f5c\u7cfb\u7edf\u548c\u8f6f\u4ef6\u6700\u65b0\u662f\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u6b65\u9aa4\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6\uff1a<\/p>\n<pre>sudo apt update\nsudo apt upgrade<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5b89\u88c5\u9632\u706b\u5899<\/li>\n<\/ol>\n<p>\u9632\u706b\u5899\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u672a\u7ecf\u6388\u6743\u8bbf\u95ee\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u8fc7\u9650\u5236\u5165\u7ad9\u548c\u51fa\u7ad9\u6d41\u91cf\uff0c\u9632\u706b\u5899\u53ef\u4ee5\u68c0\u6d4b\u548c\u963b\u6b62\u6f5c\u5728\u7684\u653b\u51fb\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u6765\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9632\u706b\u5899\u547d\u4ee4\uff1a<\/p>\n<pre>sudo apt install iptables\nsudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT\nsudo iptables -A INPUT -j DROP\nsudo iptables-save | sudo tee \/etc\/iptables\/rules.v4<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u4e9b\u547d\u4ee4\u5c06\u5141\u8bb8SSH\u8bbf\u95ee\uff0c\u5e76\u4e14\u963b\u6b62\u4efb\u4f55\u5176\u4ed6\u5165\u7ad9\u8fde\u63a5\u3002\u5f53\u7136\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u8fdb\u884c\u5b9a\u5236\u3002<\/p>\n<ol>\n<li>\u542f\u7528SELinux<\/li>\n<\/ol>\n<p>SELinux\uff08Security-Enhanced Linux\uff09\u662f\u4e00\u79cdLinux\u5185\u6838\u5b89\u5168\u6a21\u5757\uff0c\u7528\u4e8e\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\u3002\u542f\u7528SELinux\u53ef\u4ee5\u63d0\u4f9b\u989d\u5916\u7684\u5b89\u5168\u5c42\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e0eSELinux\u76f8\u5173\u7684\u547d\u4ee4\uff1a<\/p>\n<pre>sudo apt install selinux-utils selinux-basics selinux-policy-default\nsudo selinux-activate\nsudo reboot<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u6267\u884c\u4ee5\u4e0a\u547d\u4ee4\u540e\uff0c\u7cfb\u7edf\u5c06\u542f\u7528SELinux\u5e76\u91cd\u65b0\u542f\u52a8\u3002<\/p>\n<ol>\n<li>\u8bbe\u7f6eSSH\u5b89\u5168<\/li>\n<\/ol>\n<p>SSH\uff08Secure Shell\uff09\u662f\u4e00\u79cd\u52a0\u5bc6\u7684\u8fdc\u7a0b\u767b\u5f55\u534f\u8bae\uff0c\u975e\u5e38\u5e38\u7528\u4e8e\u670d\u52a1\u5668\u7ba1\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8bbe\u7f6eSSH\u5b89\u5168\u7684\u547d\u4ee4\uff1a<\/p>\n<pre>sudo nano \/etc\/ssh\/sshd_config<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5728\u6253\u5f00\u7684\u6587\u4ef6\u4e2d\uff0c\u4fee\u6539\u4ee5\u4e0b\u53c2\u6570\uff1a<\/p>\n<pre>Port 2222\nPermitEmptyPasswords no\nPermitRootLogin no\nPasswordAuthentication no<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4fdd\u5b58\u5e76\u9000\u51fa\u6587\u4ef6\u540e\uff0c\u91cd\u542fSSH\u670d\u52a1\uff1a<\/p>\n<pre>sudo systemctl restart ssh<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u4e9b\u547d\u4ee4\u5c06\u4fee\u6539\u9ed8\u8ba4SSH\u7aef\u53e3\u4e3a2222\uff0c\u7981\u6b62\u7a7a\u5bc6\u7801\u767b\u5f55\uff0c\u7981\u6b62root\u767b\u5f55\uff0c\u5e76\u4e14\u7981\u6b62\u5bc6\u7801\u8ba4\u8bc1\u3002<\/p>\n<ol>\n<li>\u5b89\u88c5Fail2ban<\/li>\n<\/ol>\n<p>Fail2ban\u662f\u4e00\u4e2a\u7528\u4e8e\u4fdd\u62a4SSH\u670d\u52a1\u514d\u53d7\u66b4\u529b\u7834\u89e3\u653b\u51fb\u7684\u5de5\u5177\u3002\u5b83\u76d1\u89c6\u65e5\u5fd7\u6587\u4ef6\u4e2d\u7684\u767b\u5f55\u5c1d\u8bd5\uff0c\u5e76\u6839\u636e\u914d\u7f6e\u7684\u89c4\u5219\u81ea\u52a8\u5c01\u7981\u6076\u610fIP\u5730\u5740\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5Fail2ban\uff1a<\/p>\n<pre>sudo apt install fail2ban<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u9700\u8981\u5bf9Fail2ban\u8fdb\u884c\u4e00\u4e9b\u914d\u7f6e\u3002\u5728\/etc\/fail2ban\/jail.local\u6587\u4ef6\u4e2d\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre>[sshd]\nenabled = true\nport = 2222\nmaxretry = 3<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u4e9b\u914d\u7f6e\u5c06\u542f\u7528Fail2ban\u5e76\u76d1\u89c6\u7aef\u53e32222\u4e0a\u7684SSH\u767b\u5f55\u5c1d\u8bd5\u3002\u5f53\u5c1d\u8bd5\u767b\u5f55\u6b21\u6570\u8d85\u8fc73\u6b21\u65f6\uff0cFail2ban\u4f1a\u81ea\u52a8\u5c01\u7981IP\u5730\u5740\u3002<\/p>\n<ol>\n<li>\u5b89\u88c5\u75c5\u6bd2\u626b\u63cf\u7a0b\u5e8f<\/li>\n<\/ol>\n<p>\u4e3a\u4e86\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u75c5\u6bd2\u548c\u6076\u610f\u8f6f\u4ef6\u7684\u4fb5\u5bb3\uff0c\u53ef\u4ee5\u5b89\u88c5\u4e00\u4e2a\u75c5\u6bd2\u626b\u63cf\u7a0b\u5e8f\u3002ClamAV\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u75c5\u6bd2\u626b\u63cf\u5f15\u64ce\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<pre>sudo apt install clamav\nsudo freshclam<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5bf9\u670d\u52a1\u5668\u8fdb\u884c\u626b\u63cf\uff1a<\/p>\n<pre>sudo clamscan -r \/<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u8017\u65f6\u7684\u8fc7\u7a0b\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528\u9009\u9879-r\u6765\u6307\u5b9a\u9700\u8981\u626b\u63cf\u7684\u76ee\u5f55\u3002<\/p>\n<p>\u901a\u8fc7\u638c\u63e1\u4e0a\u8ff0\u8fd9\u4e9b\u547d\u4ee4\uff0c\u4f60\u53ef\u4ee5\u642d\u5efa\u4e00\u4e2a\u76f8\u5bf9\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\u3002\u5f53\u7136\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4ec5\u4ec5\u4f7f\u7528\u8fd9\u4e9b\u547d\u4ee4\u662f\u8fdc\u8fdc\u4e0d\u591f\u7684\uff0c\u8fd8\u9700\u8981\u5bf9\u670d\u52a1\u5668\u8fdb\u884c\u5b9a\u671f\u7684\u68c0\u67e5\u548c\u66f4\u65b0\u3002\u540c\u65f6\uff0c\u5efa\u8bae\u4ece\u4e91\u670d\u52a1\u63d0\u4f9b\u5546\u90a3\u91cc\u4e86\u89e3\u66f4\u591a\u7684\u4e3b\u673a\u5b89\u5168\u63aa\u65bd\u3002<\/p>\n<p>\u795d\u4f60\u642d\u5efa\u4e00\u4e2a\u5b89\u5168\u53ef\u9760\u7684\u670d\u52a1\u5668\u73af\u5883\uff01<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u642d\u5efa\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\uff1a\u638c\u63e1\u8fd9\u4e9b\u547d\u4ee4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u642d\u5efa\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\uff1a\u638c\u63e1\u8fd9\u4e9b\u547d\u4ee4 \u5728\u5f53\u524d\u4fe1\u606f\u65f6\u4ee3\uff0c\u7f51\u7edc\u5b89\u5168\u95ee\u9898\u6210\u4e3a\u4e86\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u8bdd\u9898\u3002\u4f5c\u4e3a\u670d\u52a1\u5668\u7ba1\u7406\u5458\u6216\u8005\u4e91\u8ba1\u7b97\u4ece\u4e1a\u8005\uff0c\u642d\u5efa\u4e00\u4e2a\u5b89\u5168\u53ef\u9760\u7684\u670d\u52a1\u5668\u73af\u5883\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5fc5\u5907\u7684Linux\u547d\u4ee4\uff0c\u5e2e\u52a9\u4f60\u642d\u5efa\u4e00\u4e2a\u5b89\u5168\u7684Linux\u670d\u52a1\u5668\u73af\u5883\u3002 \u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6 \u9996\u5148\uff0c\u4fdd\u6301\u64cd\u4f5c\u7cfb\u7edf\u548c\u8f6f\u4ef6\u6700\u65b0\u662f\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u6b65\u9aa4\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u53ef\u4ee5\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6\uff1a sudo apt update sudo apt upgrade \u767b\u5f55\u540e\u590d\u5236 \u5b89\u88c5\u9632\u706b\u5899 \u9632\u706b\u5899\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u672a\u7ecf\u6388\u6743\u8bbf\u95ee\u7684\u91cd\u8981\u5de5\u5177\u3002\u901a\u8fc7\u9650\u5236\u5165\u7ad9\u548c\u51fa\u7ad9\u6d41\u91cf\uff0c\u9632\u706b\u5899\u53ef\u4ee5\u68c0\u6d4b\u548c\u963b\u6b62\u6f5c\u5728\u7684\u653b\u51fb\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u6765\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u9632\u706b\u5899\u547d\u4ee4\uff1a sudo apt install iptables sudo iptables -A INPUT -p tcp &#8211;dport 22 -j ACCEPT sudo iptables -A INPUT -j DROP sudo iptables-save | sudo tee \/etc\/iptables\/rules.v4 \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e9b\u547d\u4ee4\u5c06\u5141\u8bb8SSH\u8bbf\u95ee\uff0c\u5e76\u4e14\u963b\u6b62\u4efb\u4f55\u5176\u4ed6\u5165\u7ad9\u8fde\u63a5\u3002\u5f53\u7136\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u8fdb\u884c\u5b9a\u5236\u3002 \u542f\u7528SELinux SELinux\uff08Security-Enhanced Linux\uff09\u662f\u4e00\u79cdLinux\u5185\u6838\u5b89\u5168\u6a21\u5757\uff0c\u7528\u4e8e\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\u3002\u542f\u7528SELinux\u53ef\u4ee5\u63d0\u4f9b\u989d\u5916\u7684\u5b89\u5168\u5c42\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e0eSELinux\u76f8\u5173\u7684\u547d\u4ee4\uff1a sudo apt install selinux-utils selinux-basics selinux-policy-default sudo selinux-activate sudo reboot \u767b\u5f55\u540e\u590d\u5236 [&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-16976","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16976","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=16976"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16976\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=16976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=16976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=16976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}