{"id":16599,"date":"2024-11-18T10:44:28","date_gmt":"2024-11-18T02:44:28","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16599\/"},"modified":"2024-11-18T10:44:28","modified_gmt":"2024-11-18T02:44:28","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8linux%e8%bf%9b%e8%a1%8c%e7%bd%91%e7%bb%9c%e6%9c%8d%e5%8a%a1%e9%85%8d%e7%bd%ae%e5%92%8c%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16599\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316"},"content":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528\u8fdb\u884c\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316<\/p>\n<p>\u5f15\u8a00\uff1a<br \/>\u5728\u5982\u4eca\u7684\u4e92\u8054\u7f51\u65f6\u4ee3\uff0c\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u662f\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u548c\u5b89\u5168\u6027\u7684\u91cd\u8981\u73af\u8282\u4e4b\u4e00\u3002Linux\u4f5c\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u62e5\u6709\u4e30\u5bcc\u7684\u7f51\u7edc\u670d\u52a1\u5de5\u5177\u548c\u529f\u80fd\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u9ad8\u6548\u7684\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684Linux\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u6280\u5de7\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<p>\u4e00\u3001\u7f51\u7edc\u670d\u52a1\u914d\u7f6e<\/p>\n<ol>\n<li>\u914d\u7f6e\u7f51\u7edc\u63a5\u53e3<br \/>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6e\u7cfb\u7edf\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u4ee5\u786e\u4fdd\u6b63\u786e\u7684\u7f51\u7edc\u8fde\u63a5\u3002\u53ef\u4f7f\u7528ifconfig\u547d\u4ee4\u67e5\u770b\u548c\u914d\u7f6e\u7f51\u7edc\u63a5\u53e3\uff1a<\/li>\n<\/ol>\n<pre>ifconfig eth0 192.168.1.100 netmask 255.255.255.0 up<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u6761\u547d\u4ee4\u5c06\u7f51\u7edc\u63a5\u53e3eth0\u914d\u7f6e\u4e3a\u9759\u6001IP\u5730\u5740192.168.1.100\uff0c\u5b50\u7f51\u63a9\u7801\u4e3a255.255.255.0\uff0c\u5e76\u542f\u7528\u8be5\u7f51\u7edc\u63a5\u53e3\u3002<\/p>\n<ol>\n<li>\u914d\u7f6eDNS\u670d\u52a1\u5668<br \/>DNS\u670d\u52a1\u5668\u7528\u4e8e\u89e3\u6790\u57df\u540d\u548cIP\u5730\u5740\u7684\u6620\u5c04\u5173\u7cfb\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\/etc\/resolv.conf\u6587\u4ef6\u6765\u914d\u7f6e\u7cfb\u7edf\u4f7f\u7528\u7279\u5b9a\u7684DNS\u670d\u52a1\u5668\uff1a<\/li>\n<\/ol>\n<pre>echo \"nameserver 8.8.8.8\" &amp;gt; \/etc\/resolv.conf<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u6761\u547d\u4ee4\u5c06\u7cfb\u7edf\u7684DNS\u670d\u52a1\u5668\u8bbe\u7f6e\u4e3aGoogle\u7684\u516c\u5171DNS\u670d\u52a1\u5668\u3002<\/p>\n<ol>\n<li>\u914d\u7f6e\u7f51\u7edc\u670d\u52a1<br \/>\u5b8c\u6210\u7f51\u7edc\u63a5\u53e3\u548cDNS\u670d\u52a1\u5668\u7684\u914d\u7f6e\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u914d\u7f6e\u5404\u79cd\u7f51\u7edc\u670d\u52a1\uff0c\u5982Web\u670d\u52a1\u5668\u3001FTP\u670d\u52a1\u5668\u7b49\u3002\u4ee5\u914d\u7f6eApache Web\u670d\u52a1\u5668\u4e3a\u4f8b\uff1a<\/li>\n<\/ol>\n<pre>vi \/etc\/httpd\/conf\/httpd.conf<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u4e2a\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u4fee\u6539\u670d\u52a1\u5668\u7684\u76d1\u542c\u7aef\u53e3\u3001\u865a\u62df\u4e3b\u673a\u914d\u7f6e\u3001\u6a21\u5757\u52a0\u8f7d\u7b49\u3002<\/p>\n<ol>\n<li>\u9632\u706b\u5899\u914d\u7f6e<br \/>\u9632\u706b\u5899\u7528\u4e8e\u4fdd\u62a4\u7cfb\u7edf\u514d\u53d7\u6076\u610f\u7f51\u7edc\u653b\u51fb\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86iptables\u5de5\u5177\uff0c\u53ef\u4ee5\u8fdb\u884c\u9632\u706b\u5899\u7684\u914d\u7f6e\u3002<\/li>\n<\/ol>\n<pre>iptables -A INPUT -p tcp --dport 80 -j ACCEPT\niptables -A INPUT -p tcp --dport 22 -j ACCEPT\niptables -A INPUT -j DROP<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u91cc\u7684\u547d\u4ee4\u5c06\u5f00\u653e80\u7aef\u53e3\uff08\u7528\u4e8eHTTP\u8bbf\u95ee\uff09\u548c22\u7aef\u53e3\uff08\u7528\u4e8eSSH\u8bbf\u95ee\uff09\uff0c\u5e76\u5173\u95ed\u5176\u4ed6\u6240\u6709\u7aef\u53e3\u7684\u8bbf\u95ee\u3002<\/p>\n<p>\u4e8c\u3001\u7f51\u7edc\u670d\u52a1\u4f18\u5316<\/p>\n<ol>\n<li>TCP\/IP\u53c2\u6570\u8c03\u4f18<br \/>TCP\/IP\u534f\u8bae\u662f\u4e92\u8054\u7f51\u4e2d\u6700\u5e38\u7528\u7684\u4f20\u8f93\u534f\u8bae\u4e4b\u4e00\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\u7cfb\u7edf\u7684TCP\/IP\u53c2\u6570\u6765\u4f18\u5316\u7f51\u7edc\u4f20\u8f93\u6027\u80fd\uff1a<\/li>\n<\/ol>\n<pre>vi \/etc\/sysctl.conf<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u4e2a\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u4fee\u6539TCP\/IP\u53c2\u6570\uff0c\u5982\u8c03\u6574TCP\u63a5\u6536\u548c\u53d1\u9001\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u3001\u4f18\u5316TCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u7b49\u3002<\/p>\n<ol>\n<li>\u591a\u7ebf\u7a0b\u6280\u672f<br \/>\u591a\u7ebf\u7a0b\u6280\u672f\u53ef\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7ebf\u7a0b\u6c60\u7b49\u6280\u672f\u6765\u5b9e\u73b0\u591a\u7ebf\u7a0b\u5904\u7406\u8bf7\u6c42\uff1a<\/li>\n<\/ol>\n<pre>import threading\n\ndef handle_request(request):\n    # \u5904\u7406\u8bf7\u6c42\u903b\u8f91\n\nmax_threads = 10\nthread_pool = []\n\nwhile True:\n    # \u63a5\u6536\u8bf7\u6c42\n    request = accept_request()\n\n    # \u5224\u65ad\u7ebf\u7a0b\u6c60\u662f\u5426\u5df2\u6ee1\n    if len(thread_pool) &lt;p&gt;\u8fd9\u6bb5\u793a\u4f8b\u4ee3\u7801\u5c55\u793a\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u591a\u7ebf\u7a0b\u8bf7\u6c42\u5904\u7406\u903b\u8f91\u3002&lt;\/p&gt;&lt;ol start=\"3\"&gt;&lt;li&gt;\u7f13\u5b58\u6280\u672f&lt;br&gt;\u7f13\u5b58\u6280\u672f\u53ef\u4ee5\u51cf\u5c11\u5bf9\u6570\u636e\u5e93\u7b49\u8d44\u6e90\u7684\u8bbf\u95ee\uff0c\u63d0\u9ad8\u54cd\u5e94\u901f\u5ea6\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Memcached\u7b49\u7f13\u5b58\u670d\u52a1\u5668\u6765\u5b9e\u73b0\u7f13\u5b58\u529f\u80fd\uff1a&lt;\/li&gt;&lt;\/ol&gt;&lt;pre class=\"brush:shell;toolbar:false;\"&gt;# \u5b89\u88c5\u548c\u914d\u7f6eMemcached\napt-get install memcached\nvi \/etc\/memcached.conf\n\n# \u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u7f13\u5b58\u5927\u5c0f\u548c\u76d1\u542c\u7aef\u53e3\u7b49\u53c2\u6570<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u56db\u3001\u603b\u7ed3<br \/>\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u662f\u786e\u4fdd\u7cfb\u7edf\u6027\u80fd\u548c\u5b89\u5168\u6027\u7684\u91cd\u8981\u73af\u8282\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e00\u4e9b\u5e38\u7528\u7684Linux\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u6280\u5de7\uff0c\u5305\u62ec\u7f51\u7edc\u63a5\u53e3\u914d\u7f6e\u3001DNS\u670d\u52a1\u5668\u914d\u7f6e\u3001\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u9632\u706b\u5899\u914d\u7f6e\u7b49\u3002\u540c\u65f6\uff0c\u8fd8\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u8fd9\u4e9b\u6280\u5de7\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u8bfb\u8005\u5728Linux\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u65b9\u9762\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528\u8fdb\u884c\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316 \u5f15\u8a00\uff1a\u5728\u5982\u4eca\u7684\u4e92\u8054\u7f51\u65f6\u4ee3\uff0c\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u662f\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u548c\u5b89\u5168\u6027\u7684\u91cd\u8981\u73af\u8282\u4e4b\u4e00\u3002Linux\u4f5c\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u62e5\u6709\u4e30\u5bcc\u7684\u7f51\u7edc\u670d\u52a1\u5de5\u5177\u548c\u529f\u80fd\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u9ad8\u6548\u7684\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684Linux\u7f51\u7edc\u670d\u52a1\u914d\u7f6e\u548c\u4f18\u5316\u6280\u5de7\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u7f51\u7edc\u670d\u52a1\u914d\u7f6e \u914d\u7f6e\u7f51\u7edc\u63a5\u53e3\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6e\u7cfb\u7edf\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u4ee5\u786e\u4fdd\u6b63\u786e\u7684\u7f51\u7edc\u8fde\u63a5\u3002\u53ef\u4f7f\u7528ifconfig\u547d\u4ee4\u67e5\u770b\u548c\u914d\u7f6e\u7f51\u7edc\u63a5\u53e3\uff1a ifconfig eth0 192.168.1.100 netmask 255.255.255.0 up \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u6761\u547d\u4ee4\u5c06\u7f51\u7edc\u63a5\u53e3eth0\u914d\u7f6e\u4e3a\u9759\u6001IP\u5730\u5740192.168.1.100\uff0c\u5b50\u7f51\u63a9\u7801\u4e3a255.255.255.0\uff0c\u5e76\u542f\u7528\u8be5\u7f51\u7edc\u63a5\u53e3\u3002 \u914d\u7f6eDNS\u670d\u52a1\u5668DNS\u670d\u52a1\u5668\u7528\u4e8e\u89e3\u6790\u57df\u540d\u548cIP\u5730\u5740\u7684\u6620\u5c04\u5173\u7cfb\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\/etc\/resolv.conf\u6587\u4ef6\u6765\u914d\u7f6e\u7cfb\u7edf\u4f7f\u7528\u7279\u5b9a\u7684DNS\u670d\u52a1\u5668\uff1a echo &#8220;nameserver 8.8.8.8&#8221; &amp;gt; \/etc\/resolv.conf \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u6761\u547d\u4ee4\u5c06\u7cfb\u7edf\u7684DNS\u670d\u52a1\u5668\u8bbe\u7f6e\u4e3aGoogle\u7684\u516c\u5171DNS\u670d\u52a1\u5668\u3002 \u914d\u7f6e\u7f51\u7edc\u670d\u52a1\u5b8c\u6210\u7f51\u7edc\u63a5\u53e3\u548cDNS\u670d\u52a1\u5668\u7684\u914d\u7f6e\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u914d\u7f6e\u5404\u79cd\u7f51\u7edc\u670d\u52a1\uff0c\u5982Web\u670d\u52a1\u5668\u3001FTP\u670d\u52a1\u5668\u7b49\u3002\u4ee5\u914d\u7f6eApache Web\u670d\u52a1\u5668\u4e3a\u4f8b\uff1a vi \/etc\/httpd\/conf\/httpd.conf \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u4e2a\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u4fee\u6539\u670d\u52a1\u5668\u7684\u76d1\u542c\u7aef\u53e3\u3001\u865a\u62df\u4e3b\u673a\u914d\u7f6e\u3001\u6a21\u5757\u52a0\u8f7d\u7b49\u3002 \u9632\u706b\u5899\u914d\u7f6e\u9632\u706b\u5899\u7528\u4e8e\u4fdd\u62a4\u7cfb\u7edf\u514d\u53d7\u6076\u610f\u7f51\u7edc\u653b\u51fb\u3002Linux\u7cfb\u7edf\u63d0\u4f9b\u4e86iptables\u5de5\u5177\uff0c\u53ef\u4ee5\u8fdb\u884c\u9632\u706b\u5899\u7684\u914d\u7f6e\u3002 iptables -A INPUT -p tcp &#8211;dport 80 -j ACCEPT iptables -A INPUT -p tcp &#8211;dport 22 -j ACCEPT iptables -A INPUT -j DROP \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u91cc\u7684\u547d\u4ee4\u5c06\u5f00\u653e80\u7aef\u53e3\uff08\u7528\u4e8eHTTP\u8bbf\u95ee\uff09\u548c22\u7aef\u53e3\uff08\u7528\u4e8eSSH\u8bbf\u95ee\uff09\uff0c\u5e76\u5173\u95ed\u5176\u4ed6\u6240\u6709\u7aef\u53e3\u7684\u8bbf\u95ee\u3002 \u4e8c\u3001\u7f51\u7edc\u670d\u52a1\u4f18\u5316 TCP\/IP\u53c2\u6570\u8c03\u4f18TCP\/IP\u534f\u8bae\u662f\u4e92\u8054\u7f51\u4e2d\u6700\u5e38\u7528\u7684\u4f20\u8f93\u534f\u8bae\u4e4b\u4e00\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\u7cfb\u7edf\u7684TCP\/IP\u53c2\u6570\u6765\u4f18\u5316\u7f51\u7edc\u4f20\u8f93\u6027\u80fd\uff1a vi 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