{"id":62500,"date":"2025-04-29T10:39:07","date_gmt":"2025-04-29T02:39:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/62500\/"},"modified":"2025-04-29T10:39:07","modified_gmt":"2025-04-29T02:39:07","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87%e5%91%bd%e4%bb%a4%e8%a1%8c%e4%bf%9d%e6%8a%a4%e4%bd%a0%e7%9a%84linux%e6%9c%8d%e5%8a%a1%e5%99%a8-3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/62500\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7\u547d\u4ee4\u884c\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668"},"content":{"rendered":"

\"\u5982\u4f55\u901a\u8fc7\u547d\u4ee4\u884c\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u901a\u8fc7\u547d\u4ee4\u884c\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668<\/p>\n

\u5728\u5f53\u4eca\u6570\u5b57\u65f6\u4ee3\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7684\u9996\u9009\u3002\u7136\u800c\uff0c\u7531\u4e8e\u9ed1\u5ba2\u548c\u6076\u610f\u8f6f\u4ef6\u7684\u4e0d\u65ad\u8fdb\u5316\uff0c\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u653b\u51fb\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u867d\u7136\u6709\u8bb8\u591a\u670d\u52a1\u5668\u4fdd\u62a4\u5de5\u5177\u548c\u9632\u706b\u5899\u53ef\u4f9b\u9009\u62e9\uff0c\u4f46\u901a\u8fc7\u547d\u4ee4\u884c\u8fdb\u884c\u57fa\u672c\u7684\u670d\u52a1\u5668\u4fdd\u62a4\u4e5f\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u65b9\u6cd5\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u7b80\u5355\u4f46\u6709\u6548\u7684\u547d\u4ee4\u884c\u65b9\u6cd5\uff0c\u4ee5\u5e2e\u52a9\u4f60\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u3002<\/p>\n

    \n
  1. \u4f7f\u7528\u9632\u706b\u5899\uff1a<\/li>\n<\/ol>\n

    Linux\u670d\u52a1\u5668\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u662f\u9632\u706b\u5899\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u4f60\u9650\u5236\u8fdb\u51fa\u670d\u52a1\u5668\u7684\u7f51\u7edc\u6d41\u91cf\u3002\u5728\u5927\u591a\u6570Linux\u53d1\u884c\u7248\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u6765\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3002<\/p>\n

    \u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\u793a\u4f8b\uff1a<\/p>\n

    1.1 \u5141\u8bb8\u7279\u5b9aIP\u5730\u5740\u6216IP\u8303\u56f4\u8bbf\u95ee\u670d\u52a1\u5668\uff1a<\/p>\n

    $ iptables -A INPUT -s 192.168.1.100 -j ACCEPT<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    1.2 \u5141\u8bb8\u7279\u5b9a\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\u901a\u8fc7\uff1a<\/p>\n
    $ iptables -A INPUT -p tcp --dport 22 -j ACCEPT<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    1.3 \u62d2\u7edd\u6240\u6709\u5176\u4ed6\u7684\u6d41\u91cf\uff1a<\/p>\n
    $ iptables -P INPUT DROP<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u8bf7\u6ce8\u610f\uff0c\u4ee5\u4e0a\u53ea\u662f\u4e00\u4e9b\u793a\u4f8b\u547d\u4ee4\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u6839\u636e\u4f60\u7684\u670d\u52a1\u5668\u914d\u7f6e\u8fdb\u884c\u76f8\u5e94\u4fee\u6539\u3002<\/p>\n
      \n
    1. \u4f7f\u7528\u767b\u5f55\u8ba4\u8bc1\uff1a<\/li>\n<\/ol>\n
      \u4e3a\u4e86\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\uff0c\u4f60\u5e94\u8be5\u914d\u7f6e\u767b\u5f55\u8ba4\u8bc1\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u6539\u53d8SSH\u914d\u7f6e\u6587\u4ef6\u6765\u5b9e\u73b0\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528vi\u6216nano\u7b49\u6587\u672c\u7f16\u8f91\u5668\u6253\u5f00\/etc\/ssh\/sshd_config\u6587\u4ef6\u3002<\/p>\n
      $ sudo vi \/etc\/ssh\/sshd_config<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5728\u6587\u4ef6\u4e2d\u627e\u5230\u4ee5\u4e0b\u884c\uff0c\u7136\u540e\u53d6\u6d88\u6ce8\u91ca\u5e76\u4fee\u6539\u4e3a\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n
      PermitRootLogin no\nPasswordAuthentication no<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u4fdd\u5b58\u5e76\u5173\u95ed\u6587\u4ef6\u3002\u901a\u8fc7\u7981\u7528\u8fdc\u7a0broot\u767b\u5f55\u548c\u5bc6\u7801\u9a8c\u8bc1\uff0c\u4f60\u5c06\u589e\u52a0\u4f60\u7684\u670d\u52a1\u5668\u5b89\u5168\u6027\u3002<\/p>\n
        \n
      1. \u5b9a\u671f\u66f4\u65b0\u670d\u52a1\u5668\u548c\u8f6f\u4ef6\uff1a<\/li>\n<\/ol>\n
        \u4fdd\u6301\u670d\u52a1\u5668\u548c\u8f6f\u4ef6\u7684\u6700\u65b0\u72b6\u6001\u4e5f\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u91cd\u8981\u6b65\u9aa4\u4e4b\u4e00\u3002\u9ed1\u5ba2\u5e38\u5e38\u4f1a\u5229\u7528\u5df2\u77e5\u7684\u5b89\u5168\u6f0f\u6d1e\u8fdb\u5165\u670d\u52a1\u5668\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u4f60\u5e94\u8be5\u5b9a\u671f\u66f4\u65b0\u670d\u52a1\u5668\u4e0a\u7684\u64cd\u4f5c\u7cfb\u7edf\u548c\u8f6f\u4ef6\u5305\u3002<\/p>\n
        \u5728Ubuntu\u6216Debian\u7cfb\u7edf\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u66f4\u65b0\uff1a<\/p>\n
        $ sudo apt update\n$ sudo apt upgrade -y<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u5728CentOS\u6216RHEL\u7cfb\u7edf\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u66f4\u65b0\uff1a<\/p>\n
        $ sudo yum update -y<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u8bf7\u52a1\u5fc5\u5728\u66f4\u65b0\u4e4b\u524d\u5907\u4efd\u91cd\u8981\u7684\u6587\u4ef6\u548c\u914d\u7f6e\u3002<\/p>\n
          \n
        1. \u5b89\u88c5\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\uff1a<\/li>\n<\/ol>\n
          \u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5b9e\u65f6\u76d1\u63a7\u548c\u68c0\u6d4b\u6f5c\u5728\u7684\u653b\u51fb\u3002\u5b83\u53ef\u4ee5\u5206\u6790\u670d\u52a1\u5668\u4e0a\u7684\u7f51\u7edc\u6d41\u91cf\u548c\u65e5\u5fd7\u6587\u4ef6\uff0c\u5e76\u8b66\u544a\u4f60\u53ef\u80fd\u7684\u5165\u4fb5\u6d3b\u52a8\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528fail2ban\u5de5\u5177\u6765\u5b9e\u73b0\u5165\u4fb5\u68c0\u6d4b\u3002<\/p>\n
          \u5728\u5927\u591a\u6570Linux\u53d1\u884c\u7248\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5fail2ban\uff1a<\/p>\n
          $ sudo apt install fail2ban<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
          \u4e00\u65e6fail2ban\u5b89\u88c5\u5b8c\u6210\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u542f\u52a8\u5b83\uff1a<\/p>\n
          $ sudo service fail2ban start<\/pre>\n
            \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \n
          1. \u76d1\u63a7\u65e5\u5fd7\u6587\u4ef6\uff1a<\/li>\n<\/ol>\n
            \u5b9a\u671f\u76d1\u63a7\u670d\u52a1\u5668\u7684\u65e5\u5fd7\u6587\u4ef6\u4e5f\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u91cd\u8981\u6b65\u9aa4\u4e4b\u4e00\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528tail\u547d\u4ee4\u6765\u5b9e\u65f6\u67e5\u770b\u670d\u52a1\u5668\u65e5\u5fd7\u6587\u4ef6\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u76d1\u63a7\/var\/log\/auth.log\u6587\u4ef6\uff1a<\/p>\n
            $ sudo tail -f \/var\/log\/auth.log<\/pre>\n
              \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
            \u901a\u8fc7\u76d1\u63a7\u65e5\u5fd7\u6587\u4ef6\uff0c\u4f60\u53ef\u4ee5\u53ca\u65f6\u53d1\u73b0\u5f02\u5e38\u6d3b\u52a8\u548c\u6f5c\u5728\u7684\u653b\u51fb\u3002<\/p>\n
            \u603b\u7ed3\uff1a<\/p>\n
            \u901a\u8fc7\u4f7f\u7528\u547d\u4ee4\u884c\u8fdb\u884c\u57fa\u672c\u7684\u670d\u52a1\u5668\u4fdd\u62a4\uff0c\u4f60\u53ef\u4ee5\u6709\u6548\u5730\u589e\u52a0\u4f60\u7684\u670d\u52a1\u5668\u5b89\u5168\u6027\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u51e0\u4e2a\u7b80\u5355\u4f46\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u5982\u4f7f\u7528\u9632\u706b\u5899\u3001\u767b\u5f55\u8ba4\u8bc1\u3001\u5b9a\u671f\u66f4\u65b0\u670d\u52a1\u5668\u548c\u8f6f\u4ef6\u3001\u5b89\u88c5\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\u548c\u76d1\u63a7\u65e5\u5fd7\u6587\u4ef6\u3002\u5f53\u7136\uff0c\u8fd9\u53ea\u662f\u4e00\u4e2a\u5f00\u59cb\uff0c\u4f60\u8fd8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63a2\u7d22\u5176\u4ed6\u670d\u52a1\u5668\u4fdd\u62a4\u6280\u672f\u548c\u5de5\u5177\u3002\u8bb0\u4f4f\uff0c\u4fdd\u62a4\u670d\u52a1\u5668\u662f\u4e00\u4e2a\u6301\u7eed\u4e0d\u65ad\u7684\u8fc7\u7a0b\uff0c\u4f60\u9700\u8981\u4fdd\u6301\u8b66\u60d5\u5e76\u53ca\u65f6\u66f4\u65b0\u4f60\u7684\u5b89\u5168\u63aa\u65bd\u3002<\/p>\n
            \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u901a\u8fc7\u547d\u4ee4\u884c\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u5982\u4f55\u901a\u8fc7\u547d\u4ee4\u884c\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668 \u5728\u5f53\u4eca\u6570\u5b57\u65f6\u4ee3\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7684\u9996\u9009\u3002\u7136\u800c\uff0c\u7531\u4e8e\u9ed1\u5ba2\u548c\u6076\u610f\u8f6f\u4ef6\u7684\u4e0d\u65ad\u8fdb\u5316\uff0c\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u653b\u51fb\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002\u867d\u7136\u6709\u8bb8\u591a\u670d\u52a1\u5668\u4fdd\u62a4\u5de5\u5177\u548c\u9632\u706b\u5899\u53ef\u4f9b\u9009\u62e9\uff0c\u4f46\u901a\u8fc7\u547d\u4ee4\u884c\u8fdb\u884c\u57fa\u672c\u7684\u670d\u52a1\u5668\u4fdd\u62a4\u4e5f\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u65b9\u6cd5\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u7b80\u5355\u4f46\u6709\u6548\u7684\u547d\u4ee4\u884c\u65b9\u6cd5\uff0c\u4ee5\u5e2e\u52a9\u4f60\u4fdd\u62a4\u4f60\u7684Linux\u670d\u52a1\u5668\u3002 \u4f7f\u7528\u9632\u706b\u5899\uff1a Linux\u670d\u52a1\u5668\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u662f\u9632\u706b\u5899\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u4f60\u9650\u5236\u8fdb\u51fa\u670d\u52a1\u5668\u7684\u7f51\u7edc\u6d41\u91cf\u3002\u5728\u5927\u591a\u6570Linux\u53d1\u884c\u7248\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u6765\u914d\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3002 \u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684iptables\u547d\u4ee4\u793a\u4f8b\uff1a 1.1 \u5141\u8bb8\u7279\u5b9aIP\u5730\u5740\u6216IP\u8303\u56f4\u8bbf\u95ee\u670d\u52a1\u5668\uff1a $ iptables -A INPUT -s 192.168.1.100 -j ACCEPT \u767b\u5f55\u540e\u590d\u5236 1.2 \u5141\u8bb8\u7279\u5b9a\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\u901a\u8fc7\uff1a $ iptables -A INPUT -p tcp –dport 22 -j ACCEPT \u767b\u5f55\u540e\u590d\u5236 1.3 \u62d2\u7edd\u6240\u6709\u5176\u4ed6\u7684\u6d41\u91cf\uff1a $ iptables -P INPUT DROP \u767b\u5f55\u540e\u590d\u5236 \u8bf7\u6ce8\u610f\uff0c\u4ee5\u4e0a\u53ea\u662f\u4e00\u4e9b\u793a\u4f8b\u547d\u4ee4\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u6839\u636e\u4f60\u7684\u670d\u52a1\u5668\u914d\u7f6e\u8fdb\u884c\u76f8\u5e94\u4fee\u6539\u3002 \u4f7f\u7528\u767b\u5f55\u8ba4\u8bc1\uff1a \u4e3a\u4e86\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\uff0c\u4f60\u5e94\u8be5\u914d\u7f6e\u767b\u5f55\u8ba4\u8bc1\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u6539\u53d8SSH\u914d\u7f6e\u6587\u4ef6\u6765\u5b9e\u73b0\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528vi\u6216nano\u7b49\u6587\u672c\u7f16\u8f91\u5668\u6253\u5f00\/etc\/ssh\/sshd_config\u6587\u4ef6\u3002 $ sudo vi \/etc\/ssh\/sshd_config \u767b\u5f55\u540e\u590d\u5236 \u5728\u6587\u4ef6\u4e2d\u627e\u5230\u4ee5\u4e0b\u884c\uff0c\u7136\u540e\u53d6\u6d88\u6ce8\u91ca\u5e76\u4fee\u6539\u4e3a\u4ee5\u4e0b\u5185\u5bb9\uff1a PermitRootLogin no PasswordAuthentication no \u767b\u5f55\u540e\u590d\u5236 \u4fdd\u5b58\u5e76\u5173\u95ed\u6587\u4ef6\u3002\u901a\u8fc7\u7981\u7528\u8fdc\u7a0broot\u767b\u5f55\u548c\u5bc6\u7801\u9a8c\u8bc1\uff0c\u4f60\u5c06\u589e\u52a0\u4f60\u7684\u670d\u52a1\u5668\u5b89\u5168\u6027\u3002 \u5b9a\u671f\u66f4\u65b0\u670d\u52a1\u5668\u548c\u8f6f\u4ef6\uff1a \u4fdd\u6301\u670d\u52a1\u5668\u548c\u8f6f\u4ef6\u7684\u6700\u65b0\u72b6\u6001\u4e5f\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u91cd\u8981\u6b65\u9aa4\u4e4b\u4e00\u3002\u9ed1\u5ba2\u5e38\u5e38\u4f1a\u5229\u7528\u5df2\u77e5\u7684\u5b89\u5168\u6f0f\u6d1e\u8fdb\u5165\u670d\u52a1\u5668\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u4f60\u5e94\u8be5\u5b9a\u671f\u66f4\u65b0\u670d\u52a1\u5668\u4e0a\u7684\u64cd\u4f5c\u7cfb\u7edf\u548c\u8f6f\u4ef6\u5305\u3002 \u5728Ubuntu\u6216Debian\u7cfb\u7edf\u4e2d\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u66f4\u65b0\uff1a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-62500","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=62500"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62500\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=62500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=62500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=62500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}