{"id":21465,"date":"2025-04-19T04:37:25","date_gmt":"2025-04-18T20:37:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/21465.html"},"modified":"2025-04-19T04:37:25","modified_gmt":"2025-04-18T20:37:25","slug":"horain%e4%ba%91-%e6%9c%8d%e5%8a%a1%e5%99%a8ssh%e8%bf%9e%e6%8e%a5%e7%aa%81%e5%8f%91%e6%95%85%e9%9a%9c%ef%bc%9a%e5%8d%81%e5%a4%a7%e6%8e%92%e6%9f%a5%e6%ad%a5%e9%aa%a4%e4%b8%8e%e4%bf%ae%e5%a4%8d%e6%8c%87","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/21465.html","title":{"rendered":"HoRain\u4e91--\u670d\u52a1\u5668SSH\u8fde\u63a5\u7a81\u53d1\u6545\u969c\uff1a\u5341\u5927\u6392\u67e5\u6b65\u9aa4\u4e0e\u4fee\u590d\u6307\u5357"},"content":{"rendered":"<p style=\"text-align:center\">\u00a0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"70\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418203723-6802b803a470c.jpg\" width=\"70\" \/><\/p>\n<p style=\"text-align:center\">&#x1f3ac; HoRain \u4e91\u5c0f\u52a9\u624b&#xff1a;<span>\u4e2a\u4eba\u4e3b\u9875<\/span><\/p>\n<p style=\"text-align:center\">\u26fa\ufe0f\u751f\u6d3b\u7684\u7406\u60f3&#xff0c;\u5c31\u662f\u4e3a\u4e86\u7406\u60f3\u7684\u751f\u6d3b!<\/p>\n<hr \/>\n<h4 id=\"%E2%9B%B3%EF%B8%8F%20%E6%8E%A8%E8%8D%90\">\u26f3\ufe0f \u63a8\u8350<\/h4>\n<p>\u524d\u4e9b\u5929\u53d1\u73b0\u4e86\u4e00\u4e2a\u8d85\u68d2\u7684\u670d\u52a1\u5668\u8d2d\u4e70\u7f51\u7ad9&#xff0c;\u6027\u4ef7\u6bd4\u8d85\u9ad8&#xff0c;\u5927\u5185\u5b58\u8d85\u5212\u7b97&#xff01;\u5fcd\u4e0d\u4f4f\u5206\u4eab\u4e00\u4e0b\u7ed9\u5927\u5bb6\u3002<span>\u70b9\u51fb\u8df3\u8f6c\u5230\u7f51\u7ad9\u3002<\/span><\/p>\n<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"%E2%9B%B3%EF%B8%8F%20%E6%8E%A8%E8%8D%90-toc\" style=\"margin-left:80px\">\u26f3\ufe0f \u63a8\u8350<\/p>\n<p id=\"%E4%B8%80%E3%80%81%E7%BD%91%E7%BB%9C%E8%BF%9E%E9%80%9A%E6%80%A7%E6%A3%80%E6%9F%A5%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%85%E2%98%85%EF%BC%89-toc\" style=\"margin-left:40px\">\u4e00\u3001\u7f51\u7edc\u8fde\u901a\u6027\u68c0\u67e5&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2605\u2605&#xff09;<\/p>\n<p id=\"1.%20%E5%9F%BA%E7%A1%80%E7%BD%91%E7%BB%9C%E6%8E%A2%E6%B5%8B-toc\" style=\"margin-left:80px\">1. \u57fa\u7840\u7f51\u7edc\u63a2\u6d4b<\/p>\n<p id=\"2.%20%E7%AB%AF%E5%8F%A3%E5%8F%AF%E8%BE%BE%E6%80%A7%E9%AA%8C%E8%AF%81-toc\" style=\"margin-left:80px\">2. \u7aef\u53e3\u53ef\u8fbe\u6027\u9a8c\u8bc1<\/p>\n<p id=\"%E4%BA%8C%E3%80%81SSH%E6%9C%8D%E5%8A%A1%E7%8A%B6%E6%80%81%E8%AF%8A%E6%96%AD%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%85%E2%98%86%EF%BC%89-toc\" style=\"margin-left:40px\">\u4e8c\u3001SSH\u670d\u52a1\u72b6\u6001\u8bca\u65ad&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2605\u2606&#xff09;<\/p>\n<p id=\"1.%20%E6%9C%8D%E5%8A%A1%E8%BF%9B%E7%A8%8B%E6%A3%80%E6%9F%A5-toc\" style=\"margin-left:80px\">1. \u670d\u52a1\u8fdb\u7a0b\u68c0\u67e5<\/p>\n<p id=\"2.%20%E6%97%A5%E5%BF%97%E5%88%86%E6%9E%90-toc\" style=\"margin-left:80px\">2. \u65e5\u5fd7\u5206\u6790<\/p>\n<p id=\"%E4%B8%89%E3%80%81%E9%98%B2%E7%81%AB%E5%A2%99%E4%B8%8E%E5%AE%89%E5%85%A8%E7%BB%84%E9%85%8D%E7%BD%AE%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%86%E2%98%86%EF%BC%89-toc\" style=\"margin-left:40px\">\u4e09\u3001\u9632\u706b\u5899\u4e0e\u5b89\u5168\u7ec4\u914d\u7f6e&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2606\u2606&#xff09;<\/p>\n<p id=\"1.%20%E6%9C%AC%E5%9C%B0%E9%98%B2%E7%81%AB%E5%A2%99%E6%8E%92%E6%9F%A5-toc\" style=\"margin-left:80px\">1. \u672c\u5730\u9632\u706b\u5899\u6392\u67e5<\/p>\n<p id=\"2.%20%E4%BA%91%E5%B9%B3%E5%8F%B0%E5%AE%89%E5%85%A8%E7%BB%84%E9%85%8D%E7%BD%AE-toc\" style=\"margin-left:80px\">2. \u4e91\u5e73\u53f0\u5b89\u5168\u7ec4\u914d\u7f6e<\/p>\n<p id=\"%E5%9B%9B%E3%80%81SSH%E9%85%8D%E7%BD%AE%E6%B7%B1%E5%BA%A6%E6%A0%B8%E6%9F%A5%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%86%E2%98%86%EF%BC%89-toc\" style=\"margin-left:40px\">\u56db\u3001SSH\u914d\u7f6e\u6df1\u5ea6\u6838\u67e5&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2606\u2606&#xff09;<\/p>\n<p id=\"1.%20%E5%85%B3%E9%94%AE%E9%85%8D%E7%BD%AE%E9%A1%B9%E6%A3%80%E6%B5%8B-toc\" style=\"margin-left:80px\">1. \u5173\u952e\u914d\u7f6e\u9879\u68c0\u6d4b<\/p>\n<p id=\"2.%20%E5%AF%86%E9%92%A5%E8%AE%A4%E8%AF%81%E4%BF%AE%E5%A4%8D-toc\" style=\"margin-left:80px\">2. \u5bc6\u94a5\u8ba4\u8bc1\u4fee\u590d<\/p>\n<p id=\"%E4%BA%94%E3%80%81%E7%B3%BB%E7%BB%9F%E8%B5%84%E6%BA%90%E4%B8%8E%E5%AE%89%E5%85%A8%E6%A8%A1%E5%9D%97%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%86%E2%98%86%E2%98%86%EF%BC%89-toc\" style=\"margin-left:40px\">\u4e94\u3001\u7cfb\u7edf\u8d44\u6e90\u4e0e\u5b89\u5168\u6a21\u5757&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2606\u2606\u2606&#xff09;<\/p>\n<p id=\"1.%20%E8%B5%84%E6%BA%90%E8%BF%87%E8%BD%BD%E6%8E%92%E6%9F%A5-toc\" style=\"margin-left:80px\">1. \u8d44\u6e90\u8fc7\u8f7d\u6392\u67e5<\/p>\n<p id=\"2.%20SELinux%2FAppArmor%E5%B9%B2%E9%A2%84-toc\" style=\"margin-left:80px\">2. SELinux\/AppArmor\u5e72\u9884<\/p>\n<p id=\"%E5%85%AD%E3%80%81%E5%A4%96%E9%83%A8%E6%94%BB%E5%87%BB%E5%BA%94%E6%80%A5%E5%A4%84%E7%BD%AE%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%86%E2%98%86%E2%98%86%EF%BC%89-toc\" style=\"margin-left:40px\">\u516d\u3001\u5916\u90e8\u653b\u51fb\u5e94\u6025\u5904\u7f6e&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2606\u2606\u2606&#xff09;<\/p>\n<p id=\"1.%20%E6%9A%B4%E5%8A%9B%E7%A0%B4%E8%A7%A3%E9%98%B2%E6%8A%A4-toc\" style=\"margin-left:80px\">1. \u66b4\u529b\u7834\u89e3\u9632\u62a4<\/p>\n<p id=\"2.%20%E6%9C%8D%E5%8A%A1%E7%81%BE%E5%A4%87%E6%96%B9%E6%A1%88-toc\" style=\"margin-left:80px\">2. \u670d\u52a1\u707e\u5907\u65b9\u6848<\/p>\n<p id=\"%E8%AF%8A%E6%96%AD%E6%B5%81%E7%A8%8B%E5%9B%BE%E8%A7%A3-toc\" style=\"margin-left:40px\">\u8bca\u65ad\u6d41\u7a0b\u56fe\u89e3<\/p>\n<p id=\"%E6%80%BB%E7%BB%93%E4%B8%8E%E5%BB%BA%E8%AE%AE-toc\" style=\"margin-left:40px\">\u603b\u7ed3\u4e0e\u5efa\u8bae<\/p>\n<hr id=\"hr-toc\" \/>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"540\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418203724-6802b8041e3ff.png\" width=\"960\" \/><\/p>\n<p>\u672c\u6587\u57fa\u4e8e\u771f\u5b9e\u8fd0\u7ef4\u6848\u4f8b&#xff0c;\u68b3\u7406SSH\u8fde\u63a5\u5931\u8d25\u7684\u5b8c\u6574\u6392\u67e5\u8def\u5f84&#xff0c;\u6db5\u76d6\u7f51\u7edc\u5c42\u3001\u670d\u52a1\u5c42\u3001\u5b89\u5168\u5c42\u5168\u94fe\u8def\u8bca\u65ad\u65b9\u6cd5&#xff0c;\u63d0\u4f9b\u53ef\u76f4\u63a5\u6267\u884c\u7684Linux\u547d\u4ee4\u4e0e\u4fee\u590d\u65b9\u6848\u3002<\/p>\n<hr \/>\n<h3 id=\"%E4%B8%80%E3%80%81%E7%BD%91%E7%BB%9C%E8%BF%9E%E9%80%9A%E6%80%A7%E6%A3%80%E6%9F%A5%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%85%E2%98%85%EF%BC%89\">\u4e00\u3001\u7f51\u7edc\u8fde\u901a\u6027\u68c0\u67e5&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2605\u2605&#xff09;<\/h3>\n<h4 id=\"1.%20%E5%9F%BA%E7%A1%80%E7%BD%91%E7%BB%9C%E6%8E%A2%E6%B5%8B\">1. \u57fa\u7840\u7f51\u7edc\u63a2\u6d4b<\/h4>\n<p># \u6d4b\u8bd5\u670d\u52a1\u5668\u53ef\u8fbe\u6027&#xff08;\u7f51\u98751][\u7f51\u98753][\u7f51\u98755]<br \/>\nping 192.168.1.100 -c 4<\/p>\n<p># \u8def\u7531\u8ffd\u8e2a\u6392\u67e5\u4e2d\u95f4\u8282\u70b9\u6545\u969c&#xff08;\u7f51\u98751][\u7f51\u98753]<br \/>\nmtr -rw 192.168.1.100 <\/p>\n<ul>\n<li>\u200b\u73b0\u8c61&#xff1a;100%\u4e22\u5305\u63d0\u793a\u7f51\u7edc\u4e0d\u53ef\u8fbe<\/li>\n<li>\u200b\u4fee\u590d\u65b9\u6848&#xff1a;\n<ul>\n<li>\u68c0\u67e5\u670d\u52a1\u5668\u7f51\u5361\u72b6\u6001&#xff1a;ip link show<\/li>\n<li>\u9a8c\u8bc1\u7f51\u5173\u914d\u7f6e&#xff1a;route -n<\/li>\n<li>\u8054\u7cfbIDC\u4f9b\u5e94\u5546\u6838\u67e5\u7269\u7406\u94fe\u8def<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"2.%20%E7%AB%AF%E5%8F%A3%E5%8F%AF%E8%BE%BE%E6%80%A7%E9%AA%8C%E8%AF%81\">2. \u7aef\u53e3\u53ef\u8fbe\u6027\u9a8c\u8bc1<\/h4>\n<p># \u5feb\u901f\u7aef\u53e3\u626b\u63cf\u811a\u672c&#xff08;\u7f51\u98755&#xff09;<br \/>\nimport socket<br \/>\nsock &#061; socket.socket()<br \/>\nsock.settimeout(3)<br \/>\ntry:<br \/>\n    sock.connect((&#039;192.168.1.100&#039;,22))<br \/>\n    print(&#034;\u7aef\u53e3\u5f00\u653e&#034;)<br \/>\nexcept Exception as e:<br \/>\n    print(f&#034;\u8fde\u63a5\u5931\u8d25&#xff1a;{str(e)}&#034;) <\/p>\n<hr \/>\n<h3 id=\"%E4%BA%8C%E3%80%81SSH%E6%9C%8D%E5%8A%A1%E7%8A%B6%E6%80%81%E8%AF%8A%E6%96%AD%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%85%E2%98%86%EF%BC%89\">\u4e8c\u3001SSH\u670d\u52a1\u72b6\u6001\u8bca\u65ad&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2605\u2606&#xff09;<\/h3>\n<h4 id=\"1.%20%E6%9C%8D%E5%8A%A1%E8%BF%9B%E7%A8%8B%E6%A3%80%E6%9F%A5\">1. \u670d\u52a1\u8fdb\u7a0b\u68c0\u67e5<\/h4>\n<p># \u67e5\u770bSSH\u670d\u52a1\u8fd0\u884c\u72b6\u6001&#xff08;\u7f51\u98751][\u7f51\u98752][\u7f51\u98754]<br \/>\nsystemctl status sshd<\/p>\n<p># \u67e5\u770b\u7aef\u53e3\u76d1\u542c\u72b6\u6001&#xff08;\u7f51\u98754][\u7f51\u98756]<br \/>\nss -tnlp | grep :22 <\/p>\n<ul>\n<li>\u200b\u5178\u578b\u6545\u969c&#xff1a;\n<ul>\n<li>Active: inactive (dead)&#xff1a;\u670d\u52a1\u672a\u542f\u52a8 \u2192 systemctl start sshd<\/li>\n<li>Cannot assign requested address&#xff1a;IP\u7ed1\u5b9a\u9519\u8bef \u2192 \u68c0\u67e5\/etc\/ssh\/sshd_config\u4e2dListenAddress<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"2.%20%E6%97%A5%E5%BF%97%E5%88%86%E6%9E%90\">2. \u65e5\u5fd7\u5206\u6790<\/h4>\n<p># \u5b9e\u65f6\u67e5\u770b\u8ba4\u8bc1\u65e5\u5fd7&#xff08;\u7f51\u98754][\u7f51\u98756]<br \/>\ntail -f \/var\/log\/secure | grep sshd <\/p>\n<ul>\n<li>\u200b\u5173\u952e\u65e5\u5fd7\u7ebf\u7d22&#xff1a;\n<ul>\n<li>Connection closed by invalid user&#xff1a;\u66b4\u529b\u7834\u89e3\u653b\u51fb<\/li>\n<li>Failed publickey for user&#xff1a;\u5bc6\u94a5\u4e0d\u5339\u914d<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3 id=\"%E4%B8%89%E3%80%81%E9%98%B2%E7%81%AB%E5%A2%99%E4%B8%8E%E5%AE%89%E5%85%A8%E7%BB%84%E9%85%8D%E7%BD%AE%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%86%E2%98%86%EF%BC%89\">\u4e09\u3001\u9632\u706b\u5899\u4e0e\u5b89\u5168\u7ec4\u914d\u7f6e&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2606\u2606&#xff09;<\/h3>\n<h4 id=\"1.%20%E6%9C%AC%E5%9C%B0%E9%98%B2%E7%81%AB%E5%A2%99%E6%8E%92%E6%9F%A5\">1. \u672c\u5730\u9632\u706b\u5899\u6392\u67e5<\/h4>\n<p># UFW\u9632\u706b\u5899\u89c4\u5219\u68c0\u67e5&#xff08;\u7f51\u98751][\u7f51\u98752][\u7f51\u98754]<br \/>\nufw status verbose<\/p>\n<p># iptables\u89c4\u5219\u68c0\u67e5&#xff08;\u7f51\u98753][\u7f51\u98756]<br \/>\niptables -L -n &#8211;line-numbers <\/p>\n<ul>\n<li>\u200b\u4fee\u590d\u64cd\u4f5c&#xff1a; ufw allow proto tcp from any to any port 22<br \/>\niptables -I INPUT -p tcp &#8211;dport 22 -j ACCEPT <\/li>\n<\/ul>\n<h4 id=\"2.%20%E4%BA%91%E5%B9%B3%E5%8F%B0%E5%AE%89%E5%85%A8%E7%BB%84%E9%85%8D%E7%BD%AE\">2. \u4e91\u5e73\u53f0\u5b89\u5168\u7ec4\u914d\u7f6e<\/h4>\n<ul>\n<li>\u200b\u963f\u91cc\u4e91\/\u817e\u8baf\u4e91\u9700\u68c0\u67e5&#xff1a;\n<ul>\n<li>\u5165\u65b9\u5411\u653e\u884cTCP 22\u7aef\u53e3<\/li>\n<li>\u6e90IP\u9650\u5236\u662f\u5426\u5305\u542b\u5ba2\u6237\u7aef\u5730\u5740<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3 id=\"%E5%9B%9B%E3%80%81SSH%E9%85%8D%E7%BD%AE%E6%B7%B1%E5%BA%A6%E6%A0%B8%E6%9F%A5%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%85%E2%98%86%E2%98%86%EF%BC%89\">\u56db\u3001SSH\u914d\u7f6e\u6df1\u5ea6\u6838\u67e5&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2605\u2606\u2606&#xff09;<\/h3>\n<h4 id=\"1.%20%E5%85%B3%E9%94%AE%E9%85%8D%E7%BD%AE%E9%A1%B9%E6%A3%80%E6%B5%8B\">1. \u5173\u952e\u914d\u7f6e\u9879\u68c0\u6d4b<\/h4>\n<p># \u68c0\u67e5\u7aef\u53e3\u4e0e\u8bbf\u95ee\u9650\u5236&#xff08;\u7f51\u98752][\u7f51\u98754]<br \/>\ngrep -E &#034;^Port|^PermitRootLogin|^AllowUsers&#034; \/etc\/ssh\/sshd_config <\/p>\n<ul>\n<li>\u200b\u9ad8\u5371\u914d\u7f6e&#xff1a;\n<ul>\n<li>Port 2222&#xff1a;\u975e\u6807\u7aef\u53e3\u9700\u6307\u5b9a-p\u53c2\u6570\u8fde\u63a5<\/li>\n<li>PermitRootLogin no&#xff1a;\u7981\u6b62root\u767b\u5f55 \u2192 \u6539\u7528\u666e\u901a\u7528\u6237<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"2.%20%E5%AF%86%E9%92%A5%E8%AE%A4%E8%AF%81%E4%BF%AE%E5%A4%8D\">2. \u5bc6\u94a5\u8ba4\u8bc1\u4fee\u590d<\/h4>\n<p># \u5ba2\u6237\u7aef\u5bc6\u94a5\u6743\u9650\u4fee\u590d&#xff08;\u7f51\u98752][\u7f51\u98754]<br \/>\nchmod 600 ~\/.ssh\/id_rsa<\/p>\n<p># \u670d\u52a1\u7aef\u516c\u94a5\u91cd\u7f6e<br \/>\nssh-copy-id -i ~\/.ssh\/id_rsa.pub user&#064;host <\/p>\n<hr \/>\n<h3 id=\"%E4%BA%94%E3%80%81%E7%B3%BB%E7%BB%9F%E8%B5%84%E6%BA%90%E4%B8%8E%E5%AE%89%E5%85%A8%E6%A8%A1%E5%9D%97%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%86%E2%98%86%E2%98%86%EF%BC%89\">\u4e94\u3001\u7cfb\u7edf\u8d44\u6e90\u4e0e\u5b89\u5168\u6a21\u5757&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2606\u2606\u2606&#xff09;<\/h3>\n<h4 id=\"1.%20%E8%B5%84%E6%BA%90%E8%BF%87%E8%BD%BD%E6%8E%92%E6%9F%A5\">1. \u8d44\u6e90\u8fc7\u8f7d\u6392\u67e5<\/h4>\n<p># \u67e5\u770bCPU\/\u5185\u5b58\u4f7f\u7528\u7387&#xff08;\u7f51\u98751][\u7f51\u98753]<br \/>\nhtop<\/p>\n<p># \u68c0\u67e5\u6700\u5927\u8fde\u63a5\u6570\u9650\u5236&#xff08;\u7f51\u98751][\u7f51\u98754]<br \/>\ngrep MaxStartups \/etc\/ssh\/sshd_config <\/p>\n<h4 id=\"2.%20SELinux%2FAppArmor%E5%B9%B2%E9%A2%84\">2. SELinux\/AppArmor\u5e72\u9884<\/h4>\n<p># \u4e34\u65f6\u7981\u7528SELinux&#xff08;\u7f51\u98751][\u7f51\u98756]<br \/>\nsetenforce 0<\/p>\n<p># \u68c0\u67e5\u5b89\u5168\u6a21\u5757\u65e5\u5fd7<br \/>\ngrep AVC \/var\/log\/audit\/audit.log <\/p>\n<hr \/>\n<h3 id=\"%E5%85%AD%E3%80%81%E5%A4%96%E9%83%A8%E6%94%BB%E5%87%BB%E5%BA%94%E6%80%A5%E5%A4%84%E7%BD%AE%EF%BC%88%E4%BC%98%E5%85%88%E7%BA%A7%EF%BC%9A%E2%98%85%E2%98%85%E2%98%86%E2%98%86%E2%98%86%EF%BC%89\">\u516d\u3001\u5916\u90e8\u653b\u51fb\u5e94\u6025\u5904\u7f6e&#xff08;\u4f18\u5148\u7ea7&#xff1a;\u2605\u2605\u2606\u2606\u2606&#xff09;<\/h3>\n<h4 id=\"1.%20%E6%9A%B4%E5%8A%9B%E7%A0%B4%E8%A7%A3%E9%98%B2%E6%8A%A4\">1. \u66b4\u529b\u7834\u89e3\u9632\u62a4<\/h4>\n<p># \u5b89\u88c5fail2ban\u81ea\u52a8\u5c01\u7981&#xff08;\u7f51\u98756]<br \/>\nyum install fail2ban -y<\/p>\n<p># \u67e5\u770b\u653b\u51fb\u8005IP\u7edf\u8ba1<br \/>\nlastb | grep sshd | awk &#039;{print $3}&#039; | sort | uniq -c <\/p>\n<h4 id=\"2.%20%E6%9C%8D%E5%8A%A1%E7%81%BE%E5%A4%87%E6%96%B9%E6%A1%88\">2. \u670d\u52a1\u707e\u5907\u65b9\u6848<\/h4>\n<ul>\n<li>\u200b\u4e34\u65f6\u542f\u7528WebShell&#xff1a;\u901a\u8fc7\u4e91\u5e73\u53f0\u63a7\u5236\u53f0\u63a5\u5165<\/li>\n<li>\u200bVPC\u7f51\u7edc\u5207\u6362&#xff1a;\u5173\u95ed\u516c\u7f51IP&#xff0c;\u901a\u8fc7\u5185\u7f51\u8df3\u677f\u673a\u8fde\u63a5<\/li>\n<\/ul>\n<hr \/>\n<h3 id=\"%E8%AF%8A%E6%96%AD%E6%B5%81%E7%A8%8B%E5%9B%BE%E8%A7%A3\">\u8bca\u65ad\u6d41\u7a0b\u56fe\u89e3<\/h3>\n<p>graph TD<br \/>\nA[SSH\u8fde\u63a5\u5931\u8d25] &#8211;&gt; B{\u7f51\u7edc\u53ef\u8fbe?}<br \/>\nB &#8211;&gt;|\u5426| C[\u68c0\u67e5\u672c\u5730\u7f51\u7edc\/\u4e91\u5b89\u5168\u7ec4]<br \/>\nB &#8211;&gt;|\u662f| D{\u7aef\u53e3\u5f00\u653e?}<br \/>\nD &#8211;&gt;|\u5426| E[\u68c0\u67e5\u9632\u706b\u5899\/\u7aef\u53e3\u76d1\u542c]<br \/>\nD &#8211;&gt;|\u662f| F{\u670d\u52a1\u8fd0\u884c?}<br \/>\nF &#8211;&gt;|\u5426| G[\u542f\u52a8sshd\u670d\u52a1]<br \/>\nF &#8211;&gt;|\u662f| H[\u5206\u6790\u8ba4\u8bc1\u65e5\u5fd7] <\/p>\n<hr \/>\n<h3 id=\"%E6%80%BB%E7%BB%93%E4%B8%8E%E5%BB%BA%E8%AE%AE\">\u603b\u7ed3\u4e0e\u5efa\u8bae<\/h3>\n<li>\u200b\u914d\u7f6e\u5907\u4efd&#xff1a;\u5b9a\u671f\u5907\u4efd\/etc\/ssh\/sshd_config<\/li>\n<li>\u200b\u76d1\u63a7\u9884\u8b66&#xff1a;\u914d\u7f6eZabbix\u76d1\u63a7SSH\u670d\u52a1\u72b6\u6001<\/li>\n<li>\u200b\u6700\u5c0f\u5316\u66b4\u9732&#xff1a;\u9650\u5236\u8bbf\u95eeIP\u8303\u56f4&#xff0c;\u7981\u7528\u5bc6\u7801\u767b\u5f55<\/li>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418203724-6802b8047d7ef.gif\" \/><\/p>\n<p>\u2764\ufe0f\u2764\ufe0f\u2764\ufe0f\u672c\u4eba\u6c34\u5e73\u6709\u9650&#xff0c;\u5982\u6709\u7eb0\u6f0f&#xff0c;\u6b22\u8fce\u5404\u4f4d\u5927\u4f6c\u8bc4\u8bba\u6279\u8bc4\u6307\u6b63&#xff01;&#x1f604;&#x1f604;&#x1f604;<\/p>\n<p>&#x1f498;&#x1f498;&#x1f498;\u5982\u679c\u89c9\u5f97\u8fd9\u7bc7\u6587\u5bf9\u4f60\u6709\u5e2e\u52a9\u7684\u8bdd&#xff0c;\u4e5f\u8bf7\u7ed9\u4e2a\u70b9\u8d5e\u3001\u6536\u85cf\u4e0b\u5427&#xff0c;\u975e\u5e38\u611f\u8c22!&#x1f44d; &#x1f44d; &#x1f44d;<\/p>\n<p>&#x1f525;&#x1f525;&#x1f525;Stay Hungry Stay Foolish \u9053\u963b\u4e14\u957f,\u884c\u5219\u5c06\u81f3,\u8ba9\u6211\u4eec\u4e00\u8d77\u52a0\u6cb9\u5427&#xff01;&#x1f319;&#x1f319;&#x1f319;<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e9\u6b21\uff0c\u6536\u85cf10\u6b21\u3002\u672c\u6587\u57fa\u4e8e\u771f\u5b9e\u8fd0\u7ef4\u6848\u4f8b\uff0c\u68b3\u7406SSH\u8fde\u63a5\u5931\u8d25\u7684\u5b8c\u6574\u6392\u67e5\u8def\u5f84\uff0c\u6db5\u76d6\u7f51\u7edc\u5c42\u3001\u670d\u52a1\u5c42\u3001\u5b89\u5168\u5c42\u5168\u94fe\u8def\u8bca\u65ad\u65b9\u6cd5\uff0c\u63d0\u4f9b\u53ef\u76f4\u63a5\u6267\u884c\u7684Linux\u547d\u4ee4\u4e0e\u4fee\u590d\u65b9\u6848_\u5982\u4f55\u5feb\u901f\u68c0\u6d4b\u5230ssh\u94fe\u8def\u65ad\u5f00\u4e86<\/p>\n","protected":false},"author":2,"featured_media":21462,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[230,77,43],"topic":[],"class_list":["post-21465","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-php","tag-ssh","tag-43"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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