{"id":44526,"date":"2024-10-06T16:17:03","date_gmt":"2024-10-06T08:17:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44526\/"},"modified":"2024-10-06T16:17:03","modified_gmt":"2024-10-06T08:17:03","slug":"linux-%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9a%e4%bd%bf%e7%94%a8-fail2ban-%e9%98%b2%e6%ad%a2%e6%9a%b4%e5%8a%9b%e7%a0%b4%e8%a7%a3%e6%94%bb%e6%93%8a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44526\/","title":{"rendered":"Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u4f7f\u7528 fail2ban \u9632\u6b62\u66b4\u529b\u7834\u89e3\u653b\u64ca"},"content":{"rendered":"<h1 id=\"linux-%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9a%e4%bd%bf%e7%94%a8-fail2ban-%e9%98%b2%e6%ad%a2%e6%9a%b4%e5%8a%9b%e7%a0%b4%e8%a7%a3%e6%94%bb%e6%93%8a-KIklkbtmNS\">Linux \u4f3a\u670d\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u4f7f\u7528 fail2ban \u9632\u6b62\u66b4\u529b\u7834\u89e3\u653b\u64ca<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u4f3a\u670d\u5668\u5b89\u5168\u5df2\u6210\u70ba\u6bcf\u500b\u7cfb\u7d71\u7ba1\u7406\u54e1\u7684\u91cd\u8981\u4efb\u52d9\u3002\u96a8\u8457\u7db2\u7d61\u653b\u64ca\u624b\u6bb5\u7684\u65e5\u76ca\u589e\u591a\uff0c\u7279\u5225\u662f\u66b4\u529b\u7834\u89e3\u653b\u64ca\uff0c\u5982\u4f55\u6709\u6548\u5730\u4fdd\u8b77\u4f3a\u670d\u5668\u6210\u70ba\u4e86\u4e9f\u5f85\u89e3\u6c7a\u7684\u554f\u984c\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u7a2e\u6709\u6548\u7684\u9632\u8b77\u5de5\u5177\u2014\u2014fail2ban\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u914d\u7f6e\u6280\u5de7\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-fail2ban%ef%bc%9f-KIklkbtmNS\">\u4ec0\u9ebc\u662f fail2ban\uff1f<\/h2>\n<p>fail2ban \u662f\u4e00\u6b3e\u7528\u65bc\u9632\u6b62\u66b4\u529b\u7834\u89e3\u653b\u64ca\u7684\u958b\u6e90\u8edf\u4ef6\u3002\u5b83\u901a\u904e\u76e3\u63a7\u65e5\u8a8c\u6587\u4ef6\uff0c\u6aa2\u6e2c\u53ef\u7591\u7684\u767b\u9304\u5617\u8a66\uff0c\u4e26\u81ea\u52d5\u5c01\u9396\u90a3\u4e9b\u591a\u6b21\u5931\u6557\u7684 IP \u5730\u5740\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\uff0c\u4fdd\u8b77\u4f3a\u670d\u5668\u7684\u5b89\u5168\u3002<\/p>\n<h2 id=\"fail2ban-%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-KIklkbtmNS\">fail2ban \u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>fail2ban \u7684\u5de5\u4f5c\u539f\u7406\u76f8\u5c0d\u7c21\u55ae\u3002\u5b83\u6703\u5b9a\u671f\u6aa2\u67e5\u7cfb\u7d71\u65e5\u8a8c\uff0c\u5c0b\u627e\u7279\u5b9a\u7684\u6a21\u5f0f\uff0c\u4f8b\u5982 SSH \u767b\u9304\u5931\u6557\u7684\u8a18\u9304\u3002\u7576\u6aa2\u6e2c\u5230\u67d0\u500b IP \u5730\u5740\u5728\u77ed\u6642\u9593\u5167\u591a\u6b21\u5931\u6557\u6642\uff0cfail2ban \u6703\u81ea\u52d5\u5c07\u8a72 IP \u5730\u5740\u52a0\u5165\u9632\u706b\u7246\u7684\u5c01\u9396\u5217\u8868\uff0c\u5f9e\u800c\u9632\u6b62\u9032\u4e00\u6b65\u7684\u767b\u9304\u5617\u8a66\u3002<\/p>\n<h2 id=\"%e5%ae%89%e8%a3%9d-fail2ban-KIklkbtmNS\">\u5b89\u88dd fail2ban<\/h2>\n<p>\u5728\u5927\u591a\u6578 Linux \u767c\u884c\u7248\u4e2d\uff0c\u5b89\u88dd fail2ban \u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u57fa\u65bc Ubuntu \u7684\u5b89\u88dd\u6b65\u9a5f\uff1a<\/p>\n<pre><code>sudo apt update\nsudo apt install fail2ban<\/code><\/pre>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0cfail2ban \u6703\u81ea\u52d5\u555f\u52d5\u4e26\u904b\u884c\u3002<\/p>\n<h2 id=\"%e9%85%8d%e7%bd%ae-fail2ban-KIklkbtmNS\">\u914d\u7f6e fail2ban<\/h2>\n<p>fail2ban \u7684\u914d\u7f6e\u6587\u4ef6\u901a\u5e38\u4f4d\u65bc \/etc\/fail2ban \u76ee\u9304\u4e0b\u3002\u4e3b\u8981\u7684\u914d\u7f6e\u6587\u4ef6\u662f <code>jail.conf<\/code>\uff0c\u4f46\u5efa\u8b70\u60a8\u5275\u5efa\u4e00\u500b <code>jail.local<\/code> \u6587\u4ef6\u4f86\u9032\u884c\u81ea\u5b9a\u7fa9\u914d\u7f6e\uff0c\u4ee5\u907f\u514d\u5728\u5347\u7d1a\u6642\u4e1f\u5931\u66f4\u6539\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e9%85%8d%e7%bd%ae%e7%a4%ba%e4%be%8b-KIklkbtmNS\">\u57fa\u672c\u914d\u7f6e\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 <code>jail.local<\/code> \u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n<pre><code>[sshd]\nenabled = true\nport = ssh\nfilter = sshd\nlogpath = \/var\/log\/auth.log\nmaxretry = 5\nbantime = 600<\/code><\/pre>\n<p>\u5728\u9019\u500b\u914d\u7f6e\u4e2d\uff1a<\/p>\n<ul>\n<li><code>enabled<\/code>\uff1a\u555f\u7528\u8a72\u898f\u5247\u3002<\/li>\n<li><code>port<\/code>\uff1a\u6307\u5b9a\u8981\u76e3\u63a7\u7684\u7aef\u53e3\uff0c\u9019\u88e1\u662f SSH \u7684\u9ed8\u8a8d\u7aef\u53e3\u3002<\/li>\n<li><code>filter<\/code>\uff1a\u6307\u5b9a\u8981\u4f7f\u7528\u7684\u904e\u6ffe\u5668\uff0c\u9019\u88e1\u4f7f\u7528\u7684\u662f SSH \u7684\u904e\u6ffe\u5668\u3002<\/li>\n<li><code>logpath<\/code>\uff1a\u6307\u5b9a\u65e5\u8a8c\u6587\u4ef6\u7684\u8def\u5f91\u3002<\/li>\n<li><code>maxretry<\/code>\uff1a\u5141\u8a31\u7684\u6700\u5927\u5931\u6557\u5617\u8a66\u6b21\u6578\u3002<\/li>\n<li><code>bantime<\/code>\uff1a\u5c01\u9396\u6642\u9593\uff0c\u9019\u88e1\u8a2d\u7f6e\u70ba 600 \u79d2\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%95%9f%e5%8b%95%e5%92%8c%e7%ae%a1%e7%90%86-fail2ban-KIklkbtmNS\">\u555f\u52d5\u548c\u7ba1\u7406 fail2ban<\/h2>\n<p>\u914d\u7f6e\u5b8c\u6210\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5 fail2ban\uff1a<\/p>\n<pre><code>sudo systemctl start fail2ban<\/code><\/pre>\n<p>\u8981\u6aa2\u67e5 fail2ban \u7684\u72c0\u614b\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>sudo systemctl status fail2ban<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u88ab\u5c01\u9396\u7684 IP \u5730\u5740\uff1a<\/p>\n<pre><code>sudo fail2ban-client status sshd<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-KIklkbtmNS\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528 fail2ban \u662f\u4fdd\u8b77 Linux \u4f3a\u670d\u5668\u514d\u53d7\u66b4\u529b\u7834\u89e3\u653b\u64ca\u7684\u6709\u6548\u65b9\u6cd5\u3002\u901a\u904e\u7c21\u55ae\u7684\u5b89\u88dd\u548c\u914d\u7f6e\uff0c\u60a8\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002\u96a8\u8457\u7db2\u7d61\u5b89\u5168\u5a01\u8105\u7684\u589e\u52a0\uff0c\u63a1\u53d6\u9019\u4e9b\u63aa\u65bd\u5c07\u6709\u52a9\u65bc\u4fdd\u8b77\u60a8\u7684\u6578\u64da\u548c\u7cfb\u7d71\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u78ba\u4fdd\u4f3a\u670d\u5668\u7684\u5b89\u5168\u8207\u7a69\u5b9a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 fail2ban \u52a0\u5f37 Linux \u4f3a\u670d\u5668\u5b89\u5168\uff0c\u9632\u6b62\u66b4\u529b\u7834\u89e3\u653b\u64ca\uff0c\u4fdd\u8b77\u60a8\u7684\u7cfb\u7d71\u514d\u53d7\u5a01\u8105\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-44526","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44526","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=44526"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44526\/revisions"}],"predecessor-version":[{"id":44527,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44526\/revisions\/44527"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}