{"id":44320,"date":"2024-10-06T14:42:34","date_gmt":"2024-10-06T06:42:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44320\/"},"modified":"2024-10-06T14:42:34","modified_gmt":"2024-10-06T06:42:34","slug":"centos-%e4%b8%ad%e4%bd%bf%e7%94%a8-ssh-%e9%99%90%e5%88%b6-ip-%e7%99%bb%e9%8c%84%e5%85%b7%e9%ab%94%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44320\/","title":{"rendered":"CentOS \u4e2d\u4f7f\u7528 SSH \u9650\u5236 IP \u767b\u9304\u5177\u9ad4\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"centos-%e4%b8%ad%e4%bd%bf%e7%94%a8-ssh-%e9%99%90%e5%88%b6-ip-%e7%99%bb%e9%8c%84%e5%85%b7%e9%ab%94%e6%96%b9%e6%b3%95-LwUQraDilm\">CentOS \u4e2d\u4f7f\u7528 SSH \u9650\u5236 IP \u767b\u9304\u5177\u9ad4\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u5b89\u5168\u6027\u662f\u6bcf\u500b\u4f3a\u670d\u5668\u7ba1\u7406\u54e1\u5fc5\u9808\u91cd\u8996\u7684\u554f\u984c\u3002SSH\uff08Secure Shell\uff09\u662f\u4e00\u7a2e\u5e38\u7528\u7684\u9060\u7a0b\u767b\u9304\u5354\u8b70\uff0c\u4f46\u5982\u679c\u4e0d\u52a0\u4ee5\u9650\u5236\uff0c\u53ef\u80fd\u6703\u6210\u70ba\u9ed1\u5ba2\u653b\u64ca\u7684\u76ee\u6a19\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 CentOS \u7cfb\u7d71\u4e2d\u4f7f\u7528 SSH \u9650\u5236 IP \u767b\u9304\uff0c\u4ee5\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e8%a6%81%e9%99%90%e5%88%b6-ssh-%e7%99%bb%e9%8c%84-ip-LwUQraDilm\">\u70ba\u4ec0\u9ebc\u8981\u9650\u5236 SSH \u767b\u9304 IP<\/h2>\n<p>\u9650\u5236 SSH \u767b\u9304 IP \u7684\u4e3b\u8981\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6e1b\u5c11\u66b4\u529b\u7834\u89e3\u653b\u64ca\uff1a<\/strong>\u9ed1\u5ba2\u7d93\u5e38\u4f7f\u7528\u66b4\u529b\u7834\u89e3\u5de5\u5177\u5617\u8a66\u767b\u9304\u4f3a\u670d\u5668\uff0c\u9650\u5236 IP \u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u9019\u985e\u653b\u64ca\u7684\u6210\u529f\u7387\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u5b89\u5168\u6027\uff1a<\/strong>\u53ea\u6709\u6388\u6b0a\u7684 IP \u5730\u5740\u624d\u80fd\u8a2a\u554f\u4f3a\u670d\u5668\uff0c\u9019\u6a23\u53ef\u4ee5\u964d\u4f4e\u672a\u7d93\u6388\u6b0a\u8a2a\u554f\u7684\u98a8\u96aa\u3002<\/li>\n<li><strong>\u76e3\u63a7\u548c\u7ba1\u7406\uff1a<\/strong>\u901a\u904e\u9650\u5236 IP\uff0c\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u76e3\u63a7\u548c\u7ba1\u7406\u4f3a\u670d\u5668\u7684\u8a2a\u554f\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%99%90%e5%88%b6-ssh-%e7%99%bb%e9%8c%84-ip-%e7%9a%84%e5%85%b7%e9%ab%94%e6%96%b9%e6%b3%95-LwUQraDilm\">\u9650\u5236 SSH \u767b\u9304 IP \u7684\u5177\u9ad4\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e7%b7%a8%e8%bc%af-ssh-%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6-LwUQraDilm\">1. \u7de8\u8f2f SSH \u914d\u7f6e\u6587\u4ef6<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u7de8\u8f2f SSH \u7684\u914d\u7f6e\u6587\u4ef6\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6253\u958b\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre><code>sudo vi \/etc\/ssh\/sshd_config<\/code><\/pre>\n<p>\u5728\u6587\u4ef6\u4e2d\uff0c\u60a8\u53ef\u4ee5\u627e\u5230\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>#PermitRootLogin yes<\/code><\/pre>\n<p>\u5c07\u5176\u4fee\u6539\u70ba\uff1a<\/p>\n<pre><code>PermitRootLogin no<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u7981\u6b62 root \u7528\u6236\u901a\u904e SSH \u767b\u9304\uff0c\u589e\u52a0\u5b89\u5168\u6027\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-allowusers-%e9%99%90%e5%88%b6%e7%94%a8%e6%88%b6%e7%99%bb%e9%8c%84-LwUQraDilm\">2. \u4f7f\u7528 AllowUsers \u9650\u5236\u7528\u6236\u767b\u9304<\/h3>\n<p>\u5728\u540c\u4e00\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>AllowUsers<\/code> \u6307\u4ee4\u4f86\u9650\u5236\u7279\u5b9a\u7528\u6236\u7684\u767b\u9304 IP\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>AllowUsers user1@192.168.1.100 user2@192.168.1.101<\/code><\/pre>\n<p>\u9019\u6a23\u53ea\u6709\u4f86\u81ea\u6307\u5b9a IP \u7684\u7528\u6236\u624d\u80fd\u767b\u9304\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e9%98%b2%e7%81%ab%e7%89%86%e9%99%90%e5%88%b6-ip-LwUQraDilm\">3. \u4f7f\u7528\u9632\u706b\u7246\u9650\u5236 IP<\/h3>\n<p>\u9664\u4e86 SSH \u914d\u7f6e\uff0c\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528\u9632\u706b\u7246\u4f86\u9650\u5236 IP\u3002CentOS \u901a\u5e38\u4f7f\u7528 <code>firewalld<\/code> \u4f5c\u70ba\u9632\u706b\u7246\u7ba1\u7406\u5de5\u5177\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5141\u8a31\u7279\u5b9a IP \u7684 SSH \u8a2a\u554f\uff1a<\/p>\n<pre><code>sudo firewall-cmd --permanent --add-rich-rule='rule family=\"ipv4\" source address=\"192.168.1.100\" port protocol=\"tcp\" port=\"22\" accept'<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u91cd\u65b0\u52a0\u8f09\u9632\u706b\u7246\u914d\u7f6e\uff1a<\/p>\n<pre><code>sudo firewall-cmd --reload<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8-fail2ban-%e9%80%b2%e4%b8%80%e6%ad%a5%e5%a2%9e%e5%bc%b7%e5%ae%89%e5%85%a8%e6%80%a7-LwUQraDilm\">4. \u4f7f\u7528 Fail2ban \u9032\u4e00\u6b65\u589e\u5f37\u5b89\u5168\u6027<\/h3>\n<p>Fail2ban \u662f\u4e00\u500b\u53ef\u4ee5\u81ea\u52d5\u963b\u6b62\u53ef\u7591 IP \u7684\u5de5\u5177\u3002\u5b89\u88dd Fail2ban\uff1a<\/p>\n<pre><code>sudo yum install epel-release<\/code><\/pre>\n<pre><code>sudo yum install fail2ban<\/code><\/pre>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u555f\u52d5 Fail2ban \u670d\u52d9\uff1a<\/p>\n<pre><code>sudo systemctl start fail2ban<\/code><\/pre>\n<pre><code>sudo systemctl enable fail2ban<\/code><\/pre>\n<p>\u60a8\u53ef\u4ee5\u7de8\u8f2f <code>\/etc\/fail2ban\/jail.local<\/code> \u6587\u4ef6\uff0c\u6dfb\u52a0 SSH \u7684\u914d\u7f6e\uff1a<\/p>\n<pre><code>[sshd]\nenabled = true\nport = ssh\nfilter = sshd\nlogpath = \/var\/log\/secure\nmaxretry = 5\nbantime = 3600<\/code><\/pre>\n<p>\u9019\u6a23\uff0cFail2ban \u5c07\u5728\u591a\u6b21\u767b\u9304\u5931\u6557\u5f8c\u81ea\u52d5\u7981\u6b62\u53ef\u7591 IP\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LwUQraDilm\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u9650\u5236 CentOS \u4e2d\u7684 SSH \u767b\u9304 IP\uff0c\u5f9e\u800c\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002\u7121\u8ad6\u662f\u901a\u904e\u7de8\u8f2f SSH \u914d\u7f6e\u6587\u4ef6\u3001\u4f7f\u7528\u9632\u706b\u7246\uff0c\u9084\u662f\u5b89\u88dd Fail2ban\uff0c\u9019\u4e9b\u63aa\u65bd\u90fd\u80fd\u5e6b\u52a9\u60a8\u4fdd\u8b77\u4f3a\u670d\u5668\u514d\u53d7\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u66f4\u5f37\u5927\u7684\u652f\u6301\u548c\u5b89\u5168\u4fdd\u969c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 CentOS \u4e2d\u4f7f\u7528 SSH \u9650\u5236 IP \u767b\u9304\uff0c\u589e\u5f37\u4f3a\u670d\u5668\u5b89\u5168\u6027\uff0c\u9632\u6b62\u672a\u6388\u6b0a\u8a2a\u554f\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-44320","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44320","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=44320"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44320\/revisions"}],"predecessor-version":[{"id":44321,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44320\/revisions\/44321"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}