{"id":52,"date":"2021-01-04T21:56:12","date_gmt":"2021-01-04T13:56:12","guid":{"rendered":"https:\/\/explause.com\/?p=52"},"modified":"2023-02-26T10:22:53","modified_gmt":"2023-02-26T02:22:53","slug":"%e4%bd%bf%e7%94%a8fail2ban%e9%98%b2%e6%ad%a2%e7%88%86%e7%a0%b4ssh","status":"publish","type":"post","link":"https:\/\/devdoge.org\/?p=52","title":{"rendered":"\u4f7f\u7528fail2ban\u9632\u6b62\u7206\u7834SSH"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u811a\u672c\u5c0f\u5b50\u8d8a\u6765\u8d8a\u591a\uff0c\u5b89\u5168\u5a01\u80c1\u8d8a\u6765\u8d8a\u5927\uff0cSSH\u662f\u8fdc\u7a0b\u7ef4\u62a4\u670d\u52a1\u5668\u7684\u4e00\u6247\u95e8\uff0c\u95e8\u88ab\u653b\u7834\u4e86\u90a3\u91cc\u9762\u7684\u8d22\u7269\uff08\u6570\u636e\uff09\u5c31\u553e\u624b\u53ef\u5f97\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u4ee5CentOS\u4e3a\u4f8b\uff0c\u5148\u5b89\u88c5fail2ban\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>yum install fail2ban fail2ban-selinux -y<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-verse\"><strong><em>\u5982\u679c\u4f7f\u7528\u7684\u662fiptables\u9632\u706b\u5899\u5343\u4e07\u8bb0\u5f97\u7981\u7528firewalld\u9632\u706b\u5899\uff0c<\/em><\/strong>\n<strong><em>\u5b89\u88c5fail2ban\u4f1a\u9ed8\u8ba4\u81ea\u542f\u52a8firewalld\u9632\u706b\u5899\uff01\uff01\uff01<\/em><\/strong>\n<strong><em>\u5982\u679c\u610f\u5916\u91cd\u542f\u4f1a\u88ab\u5173\u5728\u5916\u9762\uff01\uff01<\/em><\/strong><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl disable firewalld\nsystemctl stop firewalld<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u88c5\u597d\u4e86fail2ban\u540e\u521b\u5efa\u4e00\u4e2a\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>vi \/etc\/fail2ban\/jail.local<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6309i\u952e\u63d2\u5165\uff0c\u590d\u5236\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;DEFAULT]\nbantime  = 86400\nmaxretry = 5\nfindtime = 600\nbanaction = firewallcmd-allports\n&#91;sshd]\nenabled  = true\nfilter   = sshd\nlogpath  = \/var\/log\/secure\nmaxretry = 3\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-verse\">\u4e0a\u9762\u7684\u914d\u7f6e\u6587\u4ef6\u91cc\uff0c\nbantime      \u610f\u601d\u662f\u5c01\u7981\u7684\u65f6\u95f4\uff0c\u5355\u4f4d\u4e3a\u79d2\uff1b\nmaxretry    \u610f\u601d\u662f\u5c1d\u8bd5\u7684\u6700\u5927\u6b21\u6570\uff1b\nfindtime     \u610f\u601d\u662f\u5728\u89c4\u5b9a\u7684\u65f6\u95f4\u5185\u5339\u914dmaxretry\uff0c\u5355\u4f4d\u4e3a\u79d2\uff1b\nbanaction  \u610f\u601d\u662f\u5c01\u7981\u65f6\u91c7\u53d6\u7684\u64cd\u4f5c\uff0c\u8fd9\u91cc\u4ee5\u9632\u706b\u5899\u64cd\u4f5c\u4e3a\u4e3b\u3002<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u914d\u7f6e\u597d\u4e86\u4e4b\u540e\u5c31\u53ef\u4ee5\u542f\u52a8fail2ban\u5566\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl start fail2ban<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u914d\u7f6e\u5f00\u673a\u81ea\u542f\u52a8\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl enable fail2ban<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8981\u89e3\u5c01\u88ab\u5c01\u7684IP\u5730\u5740\uff0c\u53ef\u4ee5\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>fail2ban-client unban IP\u5730\u5740<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u770b\u88ab\u5c01\u7684IP\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>fail2ban-client get sshd banip<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u52a0\u56fa\u670d\u52a1\u5668\uff0c\u9632\u6b62\u88ab\u9ed1\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[22],"class_list":["post-52","post","type-post","status-publish","format-standard","hentry","category-opt","tag-22"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=52"}],"version-history":[{"count":1,"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts\/52\/revisions"}],"predecessor-version":[{"id":871,"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts\/52\/revisions\/871"}],"wp:attachment":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}