{"id":51201,"date":"2024-12-03T17:11:12","date_gmt":"2024-12-03T09:11:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51201\/"},"modified":"2024-12-03T17:11:12","modified_gmt":"2024-12-03T09:11:12","slug":"%e5%ad%a6%e4%bc%9a%e9%98%b2%e5%be%a1%ef%bc%9a%e5%88%a9%e7%94%a8%e5%91%bd%e4%bb%a4%e8%a1%8c%e5%b7%a5%e5%85%b7%e4%bf%9d%e6%8a%a4%e4%bd%a0%e7%9a%84linux%e6%9c%8d%e5%8a%a1%e5%99%a8-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51201\/","title":{"rendered":"\u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668<\/h1>\n<p>\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300a\u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n<p>\u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668<\/p>\n<p>\u5728\u5f53\u4eca\u4e92\u8054\u7f51\u65f6\u4ee3\uff0c\u968f\u7740\u7f51\u7edc\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u53d8\u5f97\u8d8a\u6765\u8d8a\u91cd\u8981\u3002\u4f5c\u4e3a\u4e00\u540d\u670d\u52a1\u5668\u7ba1\u7406\u5458\uff0c\u6211\u4eec\u9700\u8981\u5b66\u4f1a\u4f7f\u7528\u5404\u79cd\u5de5\u5177\u548c\u65b9\u6cd5\u6765\u4fdd\u62a4\u6211\u4eec\u7684\u670d\u52a1\u5668\u4e0d\u53d7\u5230\u653b\u51fb\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u547d\u4ee4\u884c\u5de5\u5177\u662f\u6211\u4eec\u4e3b\u8981\u7684\u6b66\u5668\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\u6765\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u3002<\/p>\n<ol>\n<li>iptables<\/li>\n<\/ol>\n<p>iptables\u662fLinux\u7cfb\u7edf\u4e2d\u6700\u5e38\u7528\u7684\u9632\u706b\u5899\u5de5\u5177\u4e4b\u4e00\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u7ba1\u7406\u548c\u914d\u7f6e\u7f51\u7edc\u5305\u8fc7\u6ee4\u89c4\u5219\uff0c\u4ece\u800c\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u653b\u51fb\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u4f7f\u7528iptables\u7684\u793a\u4f8b\uff1a<\/p>\n<pre># \u6e05\u9664\u6240\u6709\u5df2\u6709\u89c4\u5219\niptables -F\n# \u5141\u8bb8\u672c\u5730\u56de\u73af\u63a5\u53e3\niptables -A INPUT -i lo -j ACCEPT\n# \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u3001\u76f8\u5173\u7684\u4f1a\u8bdd\u6d41\u91cf\niptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT\n# \u5141\u8bb8SSH\u8fde\u63a5\niptables -A INPUT -p tcp --dport 22 -j ACCEPT\n# \u963b\u6b62\u6240\u6709\u5176\u4ed6\u5165\u7ad9\u6d41\u91cf\niptables -A INPUT -j DROP<\/pre>\n<p>\u4ee5\u4e0a\u89c4\u5219\u9996\u5148\u6e05\u9664\u6240\u6709\u5df2\u6709\u89c4\u5219\uff0c\u7136\u540e\u5141\u8bb8\u672c\u5730\u56de\u73af\u63a5\u53e3\u7684\u901a\u4fe1\uff0c\u63a5\u7740\u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u548c\u76f8\u5173\u7684\u4f1a\u8bdd\u6d41\u91cf\uff0c\u518d\u5141\u8bb8SSH\u8fde\u63a5\uff0c\u6700\u540e\u963b\u6b62\u6240\u6709\u5176\u4ed6\u5165\u7ad9\u6d41\u91cf\u3002<\/p>\n<ol>\n<li>fail2ban<\/li>\n<\/ol>\n<p>fail2ban\u662f\u4e00\u4e2a\u7528\u4e8e\u9632\u6b62\u6076\u610f\u767b\u5f55\u5c1d\u8bd5\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u76d1\u89c6\u670d\u52a1\u5668\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u4e14\u5f53\u68c0\u6d4b\u5230\u591a\u6b21\u5931\u8d25\u7684\u767b\u5f55\u5c1d\u8bd5\u65f6\uff0c\u4f1a\u81ea\u52a8\u5728iptables\u4e2d\u6dfb\u52a0\u963b\u6b62\u8be5IP\u5730\u5740\u7684\u89c4\u5219\u3002\u4e0b\u9762\u662ffail2ban\u7684\u4e00\u4e9b\u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n<p>\u5b89\u88c5fail2ban\uff1a<\/p>\n<pre>sudo apt-get install fail2ban<\/pre>\n<p>\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684jail.local\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre>sudo cp \/etc\/fail2ban\/jail.conf \/etc\/fail2ban\/jail.local<\/pre>\n<p>\u7f16\u8f91jail.local\u6587\u4ef6\uff1a<\/p>\n<pre>sudo nano \/etc\/fail2ban\/jail.local<\/pre>\n<p>\u5728\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre>[sshd]\nenabled = true\nport = ssh\nlogpath = \/var\/log\/auth.log\nmaxretry = 3\nfindtime = 3600\nbantime = 86400<\/pre>\n<p>\u4fdd\u5b58\u5e76\u9000\u51fa\u6587\u4ef6\u3002\u4ee5\u4e0a\u914d\u7f6e\u4f1a\u76d1\u89c6\/var\/log\/auth.log\u6587\u4ef6\u4e2d\u7684SSH\u767b\u5f55\u5c1d\u8bd5\uff0c\u5e76\u4e14\u57283\u6b21\u5931\u8d25\u767b\u5f55\u5c1d\u8bd5\u540e\uff0c\u5c06\u8be5IP\u5730\u5740\u6dfb\u52a0\u5230iptables\u7684\u963b\u6b62\u5217\u8868\u4e2d\uff0c\u5c01\u7981\u65f6\u95f4\u4e3a24\u5c0f\u65f6\u3002<\/p>\n<p>\u91cd\u542ffail2ban\u670d\u52a1\u4ee5\u4f7f\u914d\u7f6e\u751f\u6548\uff1a<\/p>\n<pre>sudo service fail2ban restart<\/pre>\n<ol>\n<li>rkhunter<\/li>\n<\/ol>\n<p>rkhunter\u662f\u4e00\u4e2a\u7528\u4e8e\u68c0\u67e5\u7cfb\u7edf\u4e2d\u6f5c\u5728\u6076\u610f\u8f6f\u4ef6\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u626b\u63cf\u7cfb\u7edf\u6587\u4ef6\u548c\u76ee\u5f55\uff0c\u68c0\u6d4b\u5230\u4e0d\u6b63\u5e38\u7684\u6587\u4ef6\u6216\u8005\u914d\u7f6e\u540e\u4f1a\u7ed9\u51fa\u8b66\u544a\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528rkhunter\u7684\u793a\u4f8b\uff1a<\/p>\n<p>\u5b89\u88c5rkhunter\uff1a<\/p>\n<pre>sudo apt-get install rkhunter<\/pre>\n<p>\u8fd0\u884crkhunter\u8fdb\u884c\u7cfb\u7edf\u626b\u63cf\uff1a<\/p>\n<pre>sudo rkhunter --check<\/pre>\n<p>\u8fd0\u884crkhunter\u66f4\u65b0\u5176\u6570\u636e\u5e93\uff1a<\/p>\n<pre>sudo rkhunter --update<\/pre>\n<ol>\n<li>logwatch<\/li>\n<\/ol>\n<p>logwatch\u662f\u4e00\u4e2a\u65e5\u5fd7\u5206\u6790\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7ba1\u7406\u5458\u5feb\u901f\u5206\u6790\u670d\u52a1\u5668\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u53d1\u73b0\u6f5c\u5728\u7684\u5b89\u5168\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528logwatch\u7684\u793a\u4f8b\uff1a<\/p>\n<p>\u5b89\u88c5logwatch\uff1a<\/p>\n<pre>sudo apt-get install logwatch<\/pre>\n<p>\u8fd0\u884clogwatch\u8fdb\u884c\u65e5\u5fd7\u5206\u6790\uff1a<\/p>\n<pre>sudo logwatch<\/pre>\n<p>\u4ee5\u4e0a\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u901a\u8fc7\u4f7f\u7528\u5b83\u4eec\uff0c\u4f60\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u653b\u51fb\u3002\u5f53\u7136\uff0c\u670d\u52a1\u5668\u5b89\u5168\u9664\u4e86\u4f7f\u7528\u5de5\u5177\u4e4b\u5916\uff0c\u8fd8\u9700\u8981\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u3001\u4f7f\u7528\u5f3a\u5bc6\u7801\u3001\u9650\u5236root\u767b\u5f55\u7b49\u7b49\u3002\u53ea\u6709\u7efc\u5408\u4f7f\u7528\u5404\u79cd\u65b9\u6cd5\u548c\u5de5\u5177\uff0c\u624d\u80fd\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u795d\u4f60\u7684\u670d\u52a1\u5668\u5b89\u5168\u65e0\u5fe7\uff01<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u5427\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u5982\u4f55\u4f7f\u7528 PHP \u5b9e\u73b0\u884c\u7a0b\u89c4\u5212\u548c\u5730\u70b9\u5b9a\u4f4d\u529f\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668 \u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300a\u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~ \u5b66\u4f1a\u9632\u5fa1\uff1a\u5229\u7528\u547d\u4ee4\u884c\u5de5\u5177\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668 \u5728\u5f53\u4eca\u4e92\u8054\u7f51\u65f6\u4ee3\uff0c\u968f\u7740\u7f51\u7edc\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u53d8\u5f97\u8d8a\u6765\u8d8a\u91cd\u8981\u3002\u4f5c\u4e3a\u4e00\u540d\u670d\u52a1\u5668\u7ba1\u7406\u5458\uff0c\u6211\u4eec\u9700\u8981\u5b66\u4f1a\u4f7f\u7528\u5404\u79cd\u5de5\u5177\u548c\u65b9\u6cd5\u6765\u4fdd\u62a4\u6211\u4eec\u7684\u670d\u52a1\u5668\u4e0d\u53d7\u5230\u653b\u51fb\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u547d\u4ee4\u884c\u5de5\u5177\u662f\u6211\u4eec\u4e3b\u8981\u7684\u6b66\u5668\u4e4b\u4e00\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\u6765\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u3002 iptables iptables\u662fLinux\u7cfb\u7edf\u4e2d\u6700\u5e38\u7528\u7684\u9632\u706b\u5899\u5de5\u5177\u4e4b\u4e00\u3002\u5b83\u53ef\u4ee5\u7528\u6765\u7ba1\u7406\u548c\u914d\u7f6e\u7f51\u7edc\u5305\u8fc7\u6ee4\u89c4\u5219\uff0c\u4ece\u800c\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u6076\u610f\u653b\u51fb\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u4f7f\u7528iptables\u7684\u793a\u4f8b\uff1a # \u6e05\u9664\u6240\u6709\u5df2\u6709\u89c4\u5219 iptables -F # \u5141\u8bb8\u672c\u5730\u56de\u73af\u63a5\u53e3 iptables -A INPUT -i lo -j ACCEPT # \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u3001\u76f8\u5173\u7684\u4f1a\u8bdd\u6d41\u91cf iptables -A INPUT -m state &#8211;state RELATED,ESTABLISHED -j ACCEPT # \u5141\u8bb8SSH\u8fde\u63a5 iptables -A INPUT -p tcp &#8211;dport 22 -j ACCEPT # \u963b\u6b62\u6240\u6709\u5176\u4ed6\u5165\u7ad9\u6d41\u91cf iptables -A INPUT -j DROP \u4ee5\u4e0a\u89c4\u5219\u9996\u5148\u6e05\u9664\u6240\u6709\u5df2\u6709\u89c4\u5219\uff0c\u7136\u540e\u5141\u8bb8\u672c\u5730\u56de\u73af\u63a5\u53e3\u7684\u901a\u4fe1\uff0c\u63a5\u7740\u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u548c\u76f8\u5173\u7684\u4f1a\u8bdd\u6d41\u91cf\uff0c\u518d\u5141\u8bb8SSH\u8fde\u63a5\uff0c\u6700\u540e\u963b\u6b62\u6240\u6709\u5176\u4ed6\u5165\u7ad9\u6d41\u91cf\u3002 fail2ban fail2ban\u662f\u4e00\u4e2a\u7528\u4e8e\u9632\u6b62\u6076\u610f\u767b\u5f55\u5c1d\u8bd5\u7684\u5de5\u5177\u3002\u5b83\u4f1a\u76d1\u89c6\u670d\u52a1\u5668\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u4e14\u5f53\u68c0\u6d4b\u5230\u591a\u6b21\u5931\u8d25\u7684\u767b\u5f55\u5c1d\u8bd5\u65f6\uff0c\u4f1a\u81ea\u52a8\u5728iptables\u4e2d\u6dfb\u52a0\u963b\u6b62\u8be5IP\u5730\u5740\u7684\u89c4\u5219\u3002\u4e0b\u9762\u662ffail2ban\u7684\u4e00\u4e9b\u914d\u7f6e\u793a\u4f8b\uff1a \u5b89\u88c5fail2ban\uff1a sudo apt-get install 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