{"id":51065,"date":"2024-12-03T13:01:46","date_gmt":"2024-12-03T05:01:46","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51065\/"},"modified":"2024-12-03T13:01:46","modified_gmt":"2024-12-03T05:01:46","slug":"linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e6%80%a7%e4%b8%8e%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%ef%bc%9a%e4%b8%a4%e5%85%a8%e5%85%b6%e7%be%8e-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51065\/","title":{"rendered":"Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e"},"content":{"rendered":"

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

Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e<\/h1>\n

\u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aLinux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

<\/p>\n

Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e<\/p>\n

\u5728\u5f53\u4eca\u4e92\u8054\u7f51\u7684\u65f6\u4ee3\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u5927\u591a\u6570\u4f01\u4e1a\u548c\u4e2a\u4eba\u9996\u9009\u7684\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\u3002\u800c\u5982\u4f55\u63d0\u9ad8Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\u4f18\u5316\u6210\u4e3a\u4e86\u6bcf\u4e2a\u7ba1\u7406\u5458\u548c\u8fd0\u7ef4\u4eba\u5458\u90fd\u5173\u6ce8\u7684\u91cd\u8981\u95ee\u9898\u3002<\/p>\n

\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\u4f18\u5316\u7684\u65b9\u6cd5\u548c\u6280\u5de7\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u5b89\u5168\u6027\u4f18\u5316<\/p>\n

    \n
  1. \u7981\u6b62root\u8fdc\u7a0b\u767b\u5f55<\/li>\n<\/ol>\n

    \u4e3a\u4e86\u9632\u6b62\u8fdc\u7a0b\u9ed1\u5ba2\u653b\u51fb\uff0c\u5e94\u7981\u6b62root\u8d26\u6237\u7684\u8fdc\u7a0b\u767b\u5f55\u3002\u53ef\u4ee5\u901a\u8fc7\u7f16\u8f91SSH\u914d\u7f6e\u6587\u4ef6\/etc\/ssh\/sshd_config\uff0c\u5c06”PermitRootLogin”\u8bbe\u7f6e\u4e3a”no”\u6765\u5b9e\u73b0\uff1a<\/p>\n

    PermitRootLogin no<\/p>\n

      \n
    1. \u542f\u7528\u9632\u706b\u5899<\/li>\n<\/ol>\n

      \u4f7f\u7528\u9632\u706b\u5899\u53ef\u4ee5\u9650\u5236\u5bf9\u670d\u52a1\u5668\u7684\u8bbf\u95ee\u548c\u6d41\u91cf\u63a7\u5236\uff0c\u589e\u52a0\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u5e38\u7528\u7684\u9632\u706b\u5899\u5de5\u5177\u6709iptables\u548cfirewalld\u3002\u4e0b\u9762\u662f\u4e00\u4e2aiptables\u7684\u793a\u4f8b\u89c4\u5219\uff0c\u53ea\u5141\u8bb8\u6765\u81ea\u6307\u5b9aIP\u5730\u5740\u7684SSH\u8fde\u63a5\uff1a<\/p>\n

      iptables -A INPUT -p tcp -s 192.168.1.100 –dport 22 -j ACCEPT
      iptables -A INPUT -p tcp –dport 22 -j DROP<\/p>\n

        \n
      1. \u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6<\/li>\n<\/ol>\n

        \u5b9a\u671f\u66f4\u65b0\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u548c\u8f6f\u4ef6\u662f\u4fdd\u6301\u670d\u52a1\u5668\u5b89\u5168\u7684\u91cd\u8981\u63aa\u65bd\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6\u5305\uff1a<\/p>\n

        apt-get update
        apt-get upgrade<\/p>\n

        \u4e8c\u3001\u6027\u80fd\u4f18\u5316<\/p>\n

          \n
        1. \u5408\u7406\u5206\u914d\u786c\u4ef6\u8d44\u6e90<\/li>\n<\/ol>\n

          \u5728\u670d\u52a1\u5668\u7684\u786c\u4ef6\u8d44\u6e90\u5206\u914d\u4e2d\uff0c\u5e94\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u548c\u8d1f\u8f7d\u60c5\u51b5\u5408\u7406\u5206\u914dCPU\u3001\u5185\u5b58\u548c\u78c1\u76d8\u7a7a\u95f4\u7b49\u8d44\u6e90\uff0c\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u5982top\u3001htop\u548cvmstat\u6765\u76d1\u63a7\u670d\u52a1\u5668\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n

            \n
          1. \u4f18\u5316\u7cfb\u7edf\u53c2\u6570\u8bbe\u7f6e<\/li>\n<\/ol>\n

            \u4f18\u5316Linux\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u53c2\u6570\u8bbe\u7f6e\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u53c2\u6570\u8c03\u6574\u793a\u4f8b\uff1a<\/p>\n

            \u7981\u7528\u65e0\u5173\u7684\u670d\u52a1\uff1a
            service bluetooth stop
            service cups stop
            chkconfig bluetooth off
            chkconfig cups off<\/p>\n

            \u8c03\u6574\u6587\u4ef6\u6253\u5f00\u6570\u9650\u5236\uff1a
            echo ‘fs.file-max = 65535’ >> \/etc\/sysctl.conf
            sysctl -p<\/p>\n

            \u4f18\u5316TCP\u8fde\u63a5\u53c2\u6570\uff1a
            echo ‘net.ipv4.tcp_fin_timeout = 30’ >> \/etc\/sysctl.conf
            echo ‘net.ipv4.tcp_tw_reuse = 1’ >> \/etc\/sysctl.conf
            sysctl -p<\/p>\n

              \n
            1. \u4f7f\u7528\u7f13\u5b58\u548c\u52a0\u901f\u6280\u672f<\/li>\n<\/ol>\n

              \u4f7f\u7528\u7f13\u5b58\u548c\u52a0\u901f\u6280\u672f\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u6280\u672f\u548c\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

              \u4f7f\u7528Nginx\u4f5c\u4e3a\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\uff1a
              location \/ {<\/p>\n

              proxy_pass http:\/\/backend;<\/pre>\n
              }<\/p>\n
              \u4f7f\u7528Memcached\u4f5c\u4e3a\u7f13\u5b58\u670d\u52a1\u5668\uff1a
              $mc = new Memcached();
              $mc->addServer(‘localhost’, 11211);
              $value = $mc->get(‘key’);<\/p>\n
              \u4f7f\u7528Redis\u4f5c\u4e3a\u7f13\u5b58\u670d\u52a1\u5668\uff1a
              $redis = new Redis();
              $redis->connect(‘127.0.0.1’, 6379);
              $value = $redis->get(‘key’);<\/p>\n
              \u603b\u7ed3\uff1a<\/p>\n
              \u901a\u8fc7\u5bf9Linux\u670d\u52a1\u5668\u8fdb\u884c\u5b89\u5168\u6027\u548c\u6027\u80fd\u4f18\u5316\uff0c\u53ef\u4ee5\u540c\u65f6\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u7a33\u5b9a\u6027\u548c\u54cd\u5e94\u901f\u5ea6\uff0c\u51cf\u5c11\u6f5c\u5728\u7684\u5b89\u5168\u98ce\u9669\u3002\u7ba1\u7406\u5458\u548c\u8fd0\u7ef4\u4eba\u5458\u5e94\u8be5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u548c\u5177\u4f53\u60c5\u51b5\uff0c\u7075\u6d3b\u8fd0\u7528\u76f8\u5173\u65b9\u6cd5\u548c\u6280\u672f\uff0c\u5b9e\u73b0\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\u7684\u53cc\u8d62\u3002\u540c\u65f6\uff0c\u6211\u4eec\u4e5f\u8981\u65f6\u523b\u5173\u6ce8\u65b0\u7684\u6280\u672f\u548c\u6f0f\u6d1e\uff0c\u4fdd\u6301\u5bf9Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u548c\u6027\u80fd\u4f18\u5316\u7684\u6301\u7eed\u5b66\u4e60\u548c\u6539\u8fdb\u3002<\/p>\n
              \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aLinux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u6027\u80fd\u4f18\u5316,Linux\u670d\u52a1\u5668\u5b89\u5168,\u4e24\u5168\u5176\u7f8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n
              \n
              <\/dt>\n
              \n   \u5982\u4f55\u4f18\u5316\u4f60\u7684PHP\u7a0b\u5e8f\u5458\u6c42\u804c\u7b80\u5386\uff0c\u4f7f\u5176\u4e0e\u96c7\u4e3b\u9700\u6c42\u5339\u914d\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
              Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e \u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aLinux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01 Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u4e0e\u6027\u80fd\u4f18\u5316\uff1a\u4e24\u5168\u5176\u7f8e \u5728\u5f53\u4eca\u4e92\u8054\u7f51\u7684\u65f6\u4ee3\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u5927\u591a\u6570\u4f01\u4e1a\u548c\u4e2a\u4eba\u9996\u9009\u7684\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\u3002\u800c\u5982\u4f55\u63d0\u9ad8Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\u4f18\u5316\u6210\u4e3a\u4e86\u6bcf\u4e2a\u7ba1\u7406\u5458\u548c\u8fd0\u7ef4\u4eba\u5458\u90fd\u5173\u6ce8\u7684\u91cd\u8981\u95ee\u9898\u3002 \u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\u4f18\u5316\u7684\u65b9\u6cd5\u548c\u6280\u5de7\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u5b89\u5168\u6027\u4f18\u5316 \u7981\u6b62root\u8fdc\u7a0b\u767b\u5f55 \u4e3a\u4e86\u9632\u6b62\u8fdc\u7a0b\u9ed1\u5ba2\u653b\u51fb\uff0c\u5e94\u7981\u6b62root\u8d26\u6237\u7684\u8fdc\u7a0b\u767b\u5f55\u3002\u53ef\u4ee5\u901a\u8fc7\u7f16\u8f91SSH\u914d\u7f6e\u6587\u4ef6\/etc\/ssh\/sshd_config\uff0c\u5c06”PermitRootLogin”\u8bbe\u7f6e\u4e3a”no”\u6765\u5b9e\u73b0\uff1a PermitRootLogin no \u542f\u7528\u9632\u706b\u5899 \u4f7f\u7528\u9632\u706b\u5899\u53ef\u4ee5\u9650\u5236\u5bf9\u670d\u52a1\u5668\u7684\u8bbf\u95ee\u548c\u6d41\u91cf\u63a7\u5236\uff0c\u589e\u52a0\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u5e38\u7528\u7684\u9632\u706b\u5899\u5de5\u5177\u6709iptables\u548cfirewalld\u3002\u4e0b\u9762\u662f\u4e00\u4e2aiptables\u7684\u793a\u4f8b\u89c4\u5219\uff0c\u53ea\u5141\u8bb8\u6765\u81ea\u6307\u5b9aIP\u5730\u5740\u7684SSH\u8fde\u63a5\uff1a iptables -A INPUT -p tcp -s 192.168.1.100 –dport 22 -j ACCEPTiptables -A INPUT -p tcp –dport 22 -j DROP \u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6 \u5b9a\u671f\u66f4\u65b0\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u548c\u8f6f\u4ef6\u662f\u4fdd\u6301\u670d\u52a1\u5668\u5b89\u5168\u7684\u91cd\u8981\u63aa\u65bd\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u66f4\u65b0\u7cfb\u7edf\u548c\u8f6f\u4ef6\u5305\uff1a apt-get updateapt-get upgrade \u4e8c\u3001\u6027\u80fd\u4f18\u5316 \u5408\u7406\u5206\u914d\u786c\u4ef6\u8d44\u6e90 \u5728\u670d\u52a1\u5668\u7684\u786c\u4ef6\u8d44\u6e90\u5206\u914d\u4e2d\uff0c\u5e94\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u548c\u8d1f\u8f7d\u60c5\u51b5\u5408\u7406\u5206\u914dCPU\u3001\u5185\u5b58\u548c\u78c1\u76d8\u7a7a\u95f4\u7b49\u8d44\u6e90\uff0c\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u5982top\u3001htop\u548cvmstat\u6765\u76d1\u63a7\u670d\u52a1\u5668\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u3002 \u4f18\u5316\u7cfb\u7edf\u53c2\u6570\u8bbe\u7f6e \u4f18\u5316Linux\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u53c2\u6570\u8bbe\u7f6e\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u53c2\u6570\u8c03\u6574\u793a\u4f8b\uff1a \u7981\u7528\u65e0\u5173\u7684\u670d\u52a1\uff1aservice bluetooth stopservice cups stopchkconfig bluetooth offchkconfig cups off \u8c03\u6574\u6587\u4ef6\u6253\u5f00\u6570\u9650\u5236\uff1aecho ‘fs.file-max = 65535’ >> 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