{"id":51855,"date":"2024-12-03T17:40:02","date_gmt":"2024-12-03T09:40:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51855\/"},"modified":"2024-12-03T17:40:02","modified_gmt":"2024-12-03T09:40:02","slug":"%e8%ae%be%e7%bd%aelinux%e9%98%b2%e7%81%ab%e5%a2%99%e8%a7%84%e5%88%99%e7%9a%84%e6%ad%a5%e9%aa%a4","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51855\/","title":{"rendered":"\u8bbe\u7f6eLinux\u9632\u706b\u5899\u89c4\u5219\u7684\u6b65\u9aa4"},"content":{"rendered":"

<\/b> <\/p>\n

\u8bbe\u7f6eLinux\u9632\u706b\u5899\u89c4\u5219\u7684\u6b65\u9aa4<\/h1>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

\u5982\u4f55\u5728Linux\u4e0a\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219<\/p>\n

\u9632\u706b\u5899\u662f\u4fdd\u62a4\u8ba1\u7b97\u673a\u7f51\u7edc\u5b89\u5168\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u80fd\u591f\u76d1\u63a7\u5e76\u8fc7\u6ee4\u7f51\u7edc\u6570\u636e\u5305\uff0c\u4fdd\u62a4\u7cfb\u7edf\u514d\u53d7\u6076\u610f\u653b\u51fb\u3002\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\uff0c\u6765\u63a7\u5236\u6570\u636e\u5305\u7684\u6d41\u52a8\u3002<\/p>\n

\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u4e0a\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u5bf9\u8f93\u5165\u3001\u8f93\u51fa\u548c\u8f6c\u53d1\u6570\u636e\u5305\u7684\u63a7\u5236\u3002<\/p>\n

    \n
  1. \u67e5\u770b\u5f53\u524d\u9632\u706b\u5899\u89c4\u5219<\/li>\n<\/ol>\n

    \u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u6765\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u4e2d\u5df2\u6709\u7684\u9632\u706b\u5899\u89c4\u5219\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

    iptables -L<\/pre>\n
    \u8be5\u547d\u4ee4\u5c06\u5217\u51fa\u5f53\u524d\u7684\u9632\u706b\u5899\u89c4\u5219\uff0c\u5305\u62ecINPUT\uff08\u8f93\u5165\uff09\u3001OUTPUT\uff08\u8f93\u51fa\uff09\u548cFORWARD\uff08\u8f6c\u53d1\uff09\u94fe\u7684\u89c4\u5219\u3002<\/p>\n
      \n
    1. \u8bbe\u7f6e\u9ed8\u8ba4\u89c4\u5219<\/li>\n<\/ol>\n
      \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6240\u6709\u7684\u6570\u636e\u5305\u90fd\u5c06\u88ab\u63a5\u53d7\uff08ACCEPT\uff09\u3002\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u9ed8\u8ba4\u89c4\u5219\u6765\u786e\u5b9a\u6570\u636e\u5305\u7684\u5904\u7406\u65b9\u5f0f\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u547d\u4ee4\u5c06\u62d2\u7edd\u6240\u6709\u7684\u8f93\u5165\u6570\u636e\u5305\uff0c\u63a5\u53d7\u6240\u6709\u7684\u8f93\u51fa\u6570\u636e\u5305\uff0c\u5e76\u5c06\u6240\u6709\u7684\u8f6c\u53d1\u6570\u636e\u5305\u4e22\u5f03\u3002<\/p>\n
      iptables -P INPUT DROP\niptables -P OUTPUT ACCEPT\niptables -P FORWARD DROP<\/pre>\n
      \u8fd9\u91cc\u7684”-P”\u53c2\u6570\u7528\u4e8e\u8bbe\u7f6e\u94fe\u7684\u9ed8\u8ba4\u7b56\u7565\uff0c\u540e\u9762\u7684”DROP”\u548c”ACCEPT”\u5206\u522b\u8868\u793a\u62d2\u7edd\u548c\u63a5\u53d7\u6570\u636e\u5305\u3002<\/p>\n
        \n
      1. \u6dfb\u52a0\u89c4\u5219<\/li>\n<\/ol>\n
        \u63a5\u4e0b\u6765\u6211\u4eec\u53ef\u4ee5\u6dfb\u52a0\u5177\u4f53\u7684\u9632\u706b\u5899\u89c4\u5219\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u7b80\u5355\u7684\u89c4\u5219\u793a\u4f8b\uff1a<\/p>\n
        1) \u5141\u8bb8\u67d0\u4e2aIP\u5730\u5740\u7684\u6570\u636e\u5305\u901a\u8fc7\uff1a<\/p>\n
        iptables -A INPUT -s 192.168.0.100 -j ACCEPT<\/pre>\n
        \u8be5\u547d\u4ee4\u5c06\u5141\u8bb8\u6765\u81ea192.168.0.100\u5730\u5740\u7684\u6570\u636e\u5305\u901a\u8fc7\u3002<\/p>\n
        2) \u62d2\u7edd\u67d0\u4e2aIP\u5730\u5740\u7684\u6570\u636e\u5305\uff1a<\/p>\n
        iptables -A INPUT -s 192.168.0.100 -j DROP<\/pre>\n
        \u8be5\u547d\u4ee4\u5c06\u62d2\u7edd\u6765\u81ea192.168.0.100\u5730\u5740\u7684\u6570\u636e\u5305\u3002<\/p>\n
        3) \u5141\u8bb8\u67d0\u4e2a\u7aef\u53e3\u7684\u6570\u636e\u5305\u901a\u8fc7\uff1a<\/p>\n
        iptables -A INPUT -p tcp --dport 22 -j ACCEPT<\/pre>\n
        \u8be5\u547d\u4ee4\u5c06\u5141\u8bb8TCP\u534f\u8bae\u7684SSH\u670d\u52a1\uff08\u7aef\u53e322\uff09\u7684\u6570\u636e\u5305\u901a\u8fc7\u3002<\/p>\n
        4) \u5141\u8bb8\u67d0\u4e2a\u7f51\u6bb5\u7684\u6570\u636e\u5305\u901a\u8fc7\uff1a<\/p>\n
        iptables -A INPUT -s 192.168.0.0\/24 -j ACCEPT<\/pre>\n
        \u8be5\u547d\u4ee4\u5c06\u5141\u8bb8\u6765\u81ea192.168.0.0\/24\u7f51\u6bb5\u7684\u6570\u636e\u5305\u901a\u8fc7\u3002<\/p>\n
          \n
        1. \u4fdd\u5b58\u89c4\u5219<\/li>\n<\/ol>\n
          \u5f53\u6211\u4eec\u6dfb\u52a0\u5b8c\u89c4\u5219\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c06\u89c4\u5219\u4fdd\u5b58\u5230\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u4ee5\u4fbf\u5728\u7cfb\u7edf\u91cd\u542f\u540e\u751f\u6548\uff1a<\/p>\n
          iptables-save > \/etc\/sysconfig\/iptables<\/pre>\n
          \u8be5\u547d\u4ee4\u5c06\u5f53\u524d\u7684\u9632\u706b\u5899\u89c4\u5219\u4fdd\u5b58\u5230\/etc\/sysconfig\/iptables\u6587\u4ef6\u4e2d\u3002<\/p>\n
            \n
          1. \u5220\u9664\u89c4\u5219<\/li>\n<\/ol>\n
            \u5982\u679c\u9700\u8981\u5220\u9664\u5df2\u6709\u7684\u9632\u706b\u5899\u89c4\u5219\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
            iptables -D <chain> <rule number><\/pre>\n
            \u5176\u4e2d”<chain>”\u662f\u8981\u5220\u9664\u89c4\u5219\u7684\u94fe\uff0c”<rule number>”\u662f\u89c4\u5219\u7684\u7f16\u53f7\u3002\u53ef\u4ee5\u4f7f\u7528iptables – L\u547d\u4ee4\u67e5\u770b\u89c4\u5219\u7684\u7f16\u53f7\u3002<\/p>\n
              \n
            1. \u6e05\u7a7a\u89c4\u5219<\/li>\n<\/ol>\n
              \u5982\u679c\u9700\u8981\u6e05\u7a7a\u6240\u6709\u7684\u9632\u706b\u5899\u89c4\u5219\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
              iptables -F\niptables -X<\/pre>\n
              \u5176\u4e2d”-F”\u53c2\u6570\u7528\u4e8e\u6e05\u7a7a\u94fe\u4e2d\u7684\u6240\u6709\u89c4\u5219\uff0c”-X”\u53c2\u6570\u7528\u4e8e\u5220\u9664\u81ea\u5b9a\u4e49\u7684\u7528\u6237\u94fe\u3002<\/p>\n
              \u603b\u7ed3\uff1a<\/p>\n
              \u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u5728Linux\u4e0a\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u3002\u901a\u8fc7\u67e5\u770b\u5f53\u524d\u89c4\u5219\u3001\u8bbe\u7f6e\u9ed8\u8ba4\u89c4\u5219\u3001\u6dfb\u52a0\u89c4\u5219\u3001\u4fdd\u5b58\u89c4\u5219\u7b49\u6b65\u9aa4\uff0c\u6211\u4eec\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u62a4\u7cfb\u7edf\u5b89\u5168\u3002\u4f46\u662f\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8bbe\u7f6e\u9632\u706b\u5899\u89c4\u5219\u65f6\u8981\u786e\u4fdd\u4e0d\u4f1a\u963b\u65ad\u5fc5\u8981\u7684\u7f51\u7edc\u8fde\u63a5\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n
              \u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u8bbe\u7f6eLinux\u9632\u706b\u5899\u89c4\u5219\u7684\u6b65\u9aa4\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n
              \n
              <\/dt>\n
              \n   \u6316\u6398Go\u8bed\u8a00\u5e95\u5c42\u6280\u672f\uff1a\u7a81\u7834\u5e95\u5c42\u5f00\u53d1\u7684\u9650\u5236\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
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