{"id":51205,"date":"2024-10-08T16:50:15","date_gmt":"2024-10-08T08:50:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/51205\/"},"modified":"2024-11-14T10:44:16","modified_gmt":"2024-11-14T02:44:16","slug":"6-%e5%80%8b%e6%8f%90%e5%8d%87-linux-%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%ae%89%e5%85%a8%e7%9a%84%e9%96%8b%e6%ba%90%e5%b7%a5%e5%85%b7%e5%92%8c%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/51205\/","title":{"rendered":"6 \u500b\u63d0\u5347 Linux \u4f3a\u670d\u5668\u5b89\u5168\u7684\u958b\u6e90\u5de5\u5177\u548c\u6280\u5de7"},"content":{"rendered":"<h1 id=\"6-%e5%80%8b%e6%8f%90%e5%8d%87-linux-%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%ae%89%e5%85%a8%e7%9a%84%e9%96%8b%e6%ba%90%e5%b7%a5%e5%85%b7%e5%92%8c%e6%8a%80%e5%b7%a7-RpfqUrKBvr\">6 \u500b\u63d0\u5347 Linux \u4f3a\u670d\u5668\u5b89\u5168\u7684\u958b\u6e90\u5de5\u5177\u548c\u6280\u5de7<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0c\u4f3a\u670d\u5668\u5b89\u5168\u6027\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Linux \u4f3a\u670d\u5668\u56e0\u5176\u7a69\u5b9a\u6027\u548c\u9748\u6d3b\u6027\u800c\u5ee3\u53d7\u6b61\u8fce\uff0c\u4f46\u540c\u6642\u4e5f\u9762\u81e8\u8457\u5404\u7a2e\u5b89\u5168\u5a01\u8105\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u516d\u500b\u63d0\u5347 Linux \u4f3a\u670d\u5668\u5b89\u5168\u7684\u958b\u6e90\u5de5\u5177\u548c\u6280\u5de7\uff0c\u5e6b\u52a9\u7528\u6236\u52a0\u5f37\u5176\u4f3a\u670d\u5668\u7684\u9632\u8b77\u3002<\/p>\n<h2 id=\"1-%e4%bd%bf%e7%94%a8%e9%98%b2%e7%81%ab%e7%89%86%ef%bc%88iptables%ef%bc%89-RpfqUrKBvr\">1. \u4f7f\u7528\u9632\u706b\u7246\uff08iptables\uff09<\/h2>\n<p>iptables \u662f Linux \u7cfb\u7d71\u4e2d\u6700\u5e38\u7528\u7684\u9632\u706b\u7246\u5de5\u5177\u4e4b\u4e00\u3002\u5b83\u80fd\u5920\u6839\u64da\u7528\u6236\u5b9a\u7fa9\u7684\u898f\u5247\u904e\u6ffe\u9032\u51fa\u4f3a\u670d\u5668\u7684\u7db2\u7d61\u6d41\u91cf\u3002\u901a\u904e\u8a2d\u7f6e\u9069\u7576\u7684\u898f\u5247\uff0c\u53ef\u4ee5\u6709\u6548\u963b\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002<\/p>\n<pre><code>iptables -A INPUT -p tcp --dport 22 -j ACCEPT\niptables -A INPUT -p tcp --dport 80 -j ACCEPT\niptables -A INPUT -j DROP\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5141\u8a31 SSH \u548c HTTP \u6d41\u91cf\uff0c\u4e26\u963b\u6b62\u6240\u6709\u5176\u4ed6\u6d41\u91cf\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9700\u8981\u8abf\u6574\u898f\u5247\u3002<\/p>\n<h2 id=\"2-%e4%bd%bf%e7%94%a8-fail2ban-RpfqUrKBvr\">2. \u4f7f\u7528 Fail2ban<\/h2>\n<p>Fail2ban \u662f\u4e00\u500b\u9632\u6b62\u66b4\u529b\u7834\u89e3\u653b\u64ca\u7684\u5de5\u5177\u3002\u5b83\u901a\u904e\u76e3\u63a7\u65e5\u8a8c\u6587\u4ef6\uff0c\u6aa2\u6e2c\u591a\u6b21\u5931\u6557\u7684\u767b\u9304\u5617\u8a66\uff0c\u4e26\u81ea\u52d5\u5c01\u9396\u53ef\u7591\u7684 IP \u5730\u5740\u3002<\/p>\n<p>\u5b89\u88dd Fail2ban \u5f8c\uff0c\u7528\u6236\u53ef\u4ee5\u901a\u904e\u7de8\u8f2f\u914d\u7f6e\u6587\u4ef6\u4f86\u8a2d\u7f6e\u76e3\u63a7\u7684\u670d\u52d9\u548c\u5c01\u9396\u6642\u9593\uff1a<\/p>\n<pre><code>sudo apt-get install fail2ban\n<\/code><\/pre>\n<h2 id=\"3-%e5%ae%9a%e6%9c%9f%e6%9b%b4%e6%96%b0%e7%b3%bb%e7%b5%b1%e5%92%8c%e8%bb%9f%e4%bb%b6-RpfqUrKBvr\">3. \u5b9a\u671f\u66f4\u65b0\u7cfb\u7d71\u548c\u8edf\u4ef6<\/h2>\n<p>\u4fdd\u6301\u7cfb\u7d71\u548c\u6240\u6709\u5b89\u88dd\u7684\u8edf\u4ef6\u6700\u65b0\u662f\u9632\u6b62\u5b89\u5168\u6f0f\u6d1e\u7684\u91cd\u8981\u63aa\u65bd\u3002\u7528\u6236\u61c9\u5b9a\u671f\u6aa2\u67e5\u66f4\u65b0\u4e26\u5b89\u88dd\u5b89\u5168\u88dc\u4e01\u3002<\/p>\n<pre><code>sudo apt-get update\nsudo apt-get upgrade\n<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u4e0d\u6703\u53d7\u5230\u5df2\u77e5\u6f0f\u6d1e\u7684\u5a01\u8105\u3002<\/p>\n<h2 id=\"4-%e4%bd%bf%e7%94%a8-ssh-%e5%af%86%e9%91%b0%e7%99%bb%e9%8c%84-RpfqUrKBvr\">4. \u4f7f\u7528 SSH \u5bc6\u9470\u767b\u9304<\/h2>\n<p>\u4f7f\u7528 SSH \u5bc6\u9470\u767b\u9304\u6bd4\u4f7f\u7528\u5bc6\u78bc\u66f4\u5b89\u5168\u3002\u7528\u6236\u53ef\u4ee5\u751f\u6210\u4e00\u5c0d\u516c\u9470\u548c\u79c1\u9470\uff0c\u4e26\u5c07\u516c\u9470\u6dfb\u52a0\u5230\u4f3a\u670d\u5668\u7684\u6388\u6b0a\u5bc6\u9470\u5217\u8868\u4e2d\u3002<\/p>\n<pre><code>ssh-keygen -t rsa\nssh-copy-id user@server_ip\n<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u53ea\u6709\u64c1\u6709\u79c1\u9470\u7684\u7528\u6236\u624d\u80fd\u767b\u9304\u4f3a\u670d\u5668\uff0c\u5f9e\u800c\u63d0\u9ad8\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"5-%e5%ae%89%e8%a3%9d%e5%92%8c%e9%85%8d%e7%bd%ae-selinux-RpfqUrKBvr\">5. \u5b89\u88dd\u548c\u914d\u7f6e SELinux<\/h2>\n<p>SELinux\uff08Security-Enhanced Linux\uff09\u662f\u4e00\u7a2e\u5f37\u5236\u8a2a\u554f\u63a7\u5236\uff08MAC\uff09\u7cfb\u7d71\uff0c\u80fd\u5920\u9650\u5236\u7a0b\u5e8f\u7684\u8a2a\u554f\u6b0a\u9650\u3002\u901a\u904e\u914d\u7f6e SELinux\uff0c\u7528\u6236\u53ef\u4ee5\u9032\u4e00\u6b65\u52a0\u5f37\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>\u7528\u6236\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5 SELinux \u7684\u72c0\u614b\uff1a<\/p>\n<pre><code>sestatus\n<\/code><\/pre>\n<p>\u5982\u679c\u672a\u555f\u7528\uff0c\u53ef\u4ee5\u901a\u904e\u7de8\u8f2f\u914d\u7f6e\u6587\u4ef6\u4f86\u555f\u7528\uff1a<\/p>\n<pre><code>sudo nano \/etc\/selinux\/config\n<\/code><\/pre>\n<h2 id=\"6-%e4%bd%bf%e7%94%a8%e5%ae%89%e5%85%a8%e6%8e%83%e6%8f%8f%e5%b7%a5%e5%85%b7%ef%bc%88%e5%a6%82-lynis%ef%bc%89-RpfqUrKBvr\">6. \u4f7f\u7528\u5b89\u5168\u6383\u63cf\u5de5\u5177\uff08\u5982 Lynis\uff09<\/h2>\n<p>Lynis \u662f\u4e00\u6b3e\u958b\u6e90\u7684\u5b89\u5168\u6383\u63cf\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u6aa2\u67e5\u7cfb\u7d71\u7684\u5b89\u5168\u6027\u3002\u5b83\u6703\u63d0\u4f9b\u8a73\u7d30\u7684\u5831\u544a\u548c\u5efa\u8b70\uff0c\u5e6b\u52a9\u7528\u6236\u8b58\u5225\u6f5b\u5728\u7684\u5b89\u5168\u98a8\u96aa\u3002<\/p>\n<pre><code>sudo apt-get install lynis\nsudo lynis audit system\n<\/code><\/pre>\n<p>\u901a\u904e\u5b9a\u671f\u904b\u884c Lynis\uff0c\u7528\u6236\u53ef\u4ee5\u53ca\u6642\u767c\u73fe\u4e26\u4fee\u5fa9\u5b89\u5168\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-RpfqUrKBvr\">\u7e3d\u7d50<\/h2>\n<p>\u63d0\u5347 Linux \u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u662f\u6bcf\u4f4d\u7cfb\u7d71\u7ba1\u7406\u54e1\u7684\u91cd\u8981\u4efb\u52d9\u3002\u901a\u904e\u4f7f\u7528\u4e0a\u8ff0\u958b\u6e90\u5de5\u5177\u548c\u6280\u5de7\uff0c\u5982 <a href=\"https:\/\/server.hk\">VPS<\/a> \u7684\u9632\u706b\u7246\u3001Fail2ban\u3001\u5b9a\u671f\u66f4\u65b0\u7cfb\u7d71\u3001SSH \u5bc6\u9470\u767b\u9304\u3001SELinux \u548c\u5b89\u5168\u6383\u63cf\u5de5\u5177\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u52a0\u5f37\u4f3a\u670d\u5668\u7684\u9632\u8b77\u3002\u9019\u4e9b\u63aa\u65bd\u4e0d\u50c5\u80fd\u5920\u4fdd\u8b77\u4f3a\u670d\u5668\u514d\u53d7\u653b\u64ca\uff0c\u9084\u80fd\u63d0\u9ad8\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 6 \u500b\u63d0\u5347 Linux \u4f3a\u670d\u5668\u5b89\u5168\u7684\u958b\u6e90\u5de5\u5177\u548c\u6280\u5de7\uff0c\u4fdd\u8b77\u60a8\u7684\u7cfb\u7d71\u514d\u53d7\u5a01\u8105\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-51205","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/51205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=51205"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/51205\/revisions"}],"predecessor-version":[{"id":51206,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/51205\/revisions\/51206"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=51205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=51205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=51205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}