{"id":1498,"date":"2011-07-20T10:48:54","date_gmt":"2011-07-20T17:48:54","guid":{"rendered":"http:\/\/www.slyar.com\/blog\/?p=1498"},"modified":"2022-07-03T15:56:07","modified_gmt":"2022-07-03T22:56:07","slug":"squid-iptables-transparent","status":"publish","type":"post","link":"http:\/\/www.slyar.com\/blog\/squid-iptables-transparent.html","title":{"rendered":"Squid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e"},"content":{"rendered":"<p>\u6587\u7ae0\u4f5c\u8005\uff1a<span style=\"color: #0000ff;\">\u59dc\u5357(Slyar) <\/span>\u6587\u7ae0\u6765\u6e90\uff1aSlyar Home (<a title=\"Slyar\" href=\"http:\/\/www.slyar.com\" target=\"_blank\" rel=\"noopener\">www.slyar.com<\/a>) \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff0c\u8c22\u8c22\u5408\u4f5c\u3002<\/p>\n<p>\u7b80\u5355\u8bb0\u5f55\u4e00\u4e0bSquid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e<\/p>\n<p>\u73af\u5883\uff1aVirtualBox + CentOS 6.0 + squid-3.1.4-1.el6.i686<\/p>\n<p>0\u3001\u68c0\u67e5squid\u662f\u5426\u9ed8\u8ba4\u5b89\u88c5\uff0c\u6ca1\u6709\u5b89\u88c5\u7684\u5148\u5b89\u88c5<\/p>\n<p>[root@Slyar ~]# rpm -qa squid<br \/>\nsquid-3.1.4-1.el6.i686<\/p>\n<p>1\u3001\u865a\u62df\u673a\u6dfb\u52a0\u53cc\u7f51\u5361\uff0c\u5168\u90e8\u8bbe\u7f6e\u6865\u63a5\uff0c\u914d\u7f6eIP\uff0ceth0\u4f5c\u4e3a\u5916\u7f51\uff0ceth1\u4f5c\u4e3a\u5185\u7f51\uff0c<span style=\"color: #ff0000;\">\u6ce8\u610f\u914d\u7f6e\u6587\u4ef6\u91cc\u7684\u7f51\u5361MAC\u5730\u5740\u8981\u548c\u8bbe\u5907\u5339\u914d<\/span>\uff01<\/p>\n<p><a href=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111302.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1499\" title=\"\u7f51\u53611\" src=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111302.png\" alt=\"\" width=\"500\" height=\"238\" srcset=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111302.png 500w, http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111302-150x71.png 150w, http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111302-300x143.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p><a href=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111315.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1500\" title=\"\u7f51\u53612\" src=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111315.png\" alt=\"\" width=\"498\" height=\"237\" srcset=\"http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111315.png 498w, http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111315-150x71.png 150w, http:\/\/www.slyar.com\/blog\/wp-content\/uploads\/2011\/07\/2011-07-20_111315-300x143.png 300w\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" \/><\/a><\/p>\n<p>IP\u5730\u5740\u7684\u4fee\u6539\u53ef\u53c2\u89c1\u300a<a href=\"http:\/\/www.slyar.com\/blog\/centos-ip-dns-gateway-permanent.html\" target=\"_blank\" rel=\"noopener\">CentOS(RedHat)\u547d\u4ee4\u884c\u6c38\u4e45\u4fee\u6539IP\u5730\u5740\u3001\u7f51\u5173\u3001DNS<\/a>\u300b\u6216\u300a<a href=\"http:\/\/www.slyar.com\/blog\/centos-ip-dns-gateway-temporary.html\" target=\"_blank\" rel=\"noopener\">CentOS(RedHat)\u547d\u4ee4\u884c\u4e34\u65f6\u4fee\u6539IP\u5730\u5740\u3001\u7f51\u5173\u3001DNS<\/a>\u300b<\/p>\n<p>[root@Slyar ~]# vim \/etc\/sysconfig\/network-scripts\/ifcfg-eth0<br \/>\nDEVICE=\"eth0\"<br \/>\nONBOOT=yes<br \/>\nTYPE=Ethernet<br \/>\nHWADDR=08:00:27:BC:6A:0D<br \/>\nIPADDR=172.17.1.221<br \/>\nPREFIX=24<br \/>\nGATEWAY=172.17.1.254<br \/>\nDNS1=172.16.5.133<br \/>\nNAME=\"System eth0\"<\/p>\n<p>[root@Slyar ~]# vim \/etc\/sysconfig\/network-scripts\/ifcfg-eth1<br \/>\nDEVICE=\"eth1\"<br \/>\nONBOOT=yes<br \/>\nTYPE=Ethernet<br \/>\nHWADDR=08:00:27:20:52:B2<br \/>\nIPADDR=192.168.1.254<br \/>\nPREFIX=24<br \/>\nNAME=\"System eth1\"<\/p>\n<p>[root@Slyar ~]# \/etc\/init.d\/network restart #\u91cd\u65b0\u542f\u52a8\u7f51\u5361<\/p>\n<p>\u914d\u7f6e\u4e4b\u540e\u65e0\u6cd5\u4e0a\u7f51\u7684\uff0c\u6ce8\u610f\u7528route\u547d\u4ee4\u770b\u4e00\u4e0b\u9ed8\u8ba4\u8def\u7531\u3002\u5efa\u8baeeth1\u5c31\u4e0d\u8981\u8bbe\u7f6e\u7f51\u5173\u4e86\uff0c\u7701\u7684\u9ebb\u70e6\uff0c\u5f53\u7136\u5982\u679c\u4f60\u613f\u610f\u914d\u7f6e\u9ed8\u8ba4\u8def\u7531\u4e5f\u6ca1\u6240\u8c13\u3002<\/p>\n<p>2\u3001\u914d\u7f6esquid\u53ca\u900f\u660e\u6a21\u5f0f<\/p>\n<p>[root@Slyar ~]# cp \/etc\/squid\/squid.conf \/etc\/squid\/squid.conf.bak<br \/>\n[root@Slyar ~]# vim \/etc\/squid\/squid.conf<\/p>\n<ul>\n<li>\u4e3a\u4e86\u7701\u4e8b\uff0c\u6211\u76f4\u63a5\u628a\u4e0b\u9762\u8fd9\u884c\u6539\u6210 <span style=\"color: #ff0000;\">http_access allow all<\/span>\uff0c\u8bfb\u8005\u53ef\u4ee5\u81ea\u884c\u4fee\u6539\u5141\u8bb8\u8303\u56f4\u3002<\/li>\n<\/ul>\n<p># And finally deny all other access to this proxy<br \/>\nhttp_access deny all<\/p>\n<ul>\n<li><span style=\"color: #ff0000;\">\u5207\u8bb0\u4e00\u5b9a\u8981\u5728\u914d\u7f6e\u6587\u4ef6\u6700\u4e0b\u65b9\u589e\u52a0\u4e0b\u9762\u8fd9\u6761\u8bed\u53e5\uff0c\u5426\u5219squid\u65e0\u6cd5\u542f\u52a8\uff01<\/span><\/li>\n<\/ul>\n<p>visible_hostname localhost<\/p>\n<ul>\n<li><span style=\"color: #ff0000;\">\u5982\u679c\u4f60\u8981\u4f7f\u7528\u900f\u660e\u6a21\u5f0f\uff0c\u5728\u7aef\u53e3\u540e\u9762\u589e\u52a0\u5173\u952e\u5b57\"transparent\"\u3002<\/span><\/li>\n<li><span style=\"color: #ff0000;\">\u4e0d\u4f7f\u7528\u900f\u660e\u6a21\u5f0f\u7684\u8bdd\uff0c\u8fd9\u884c\u4e0d\u7528\u6539\uff0c\u8fdb\u884c\u7b2c3\u6b65\u4e4b\u540e\u53ef\u4ee5\u76f4\u63a5\u8df3\u5230\u7b2c7\u6b65\u6d4b\u8bd5\u4e86\u3002<br \/>\n<\/span><\/li>\n<\/ul>\n<p># Squid normally listens to port 3128<br \/>\nhttp_port 3128 transparent<\/p>\n<p>3\u3001\u542f\u52a8squid<\/p>\n<p>[root@Slyar ~]# service squid restart<\/p>\n<p>4\u3001\u4e3a\u900f\u660e\u4ee3\u7406\u914d\u7f6eiptables\uff0c\u8bbe\u7f6e\u8f6c\u53d1<\/p>\n<p><span style=\"color: #ff0000;\">\u4e3a\u4e86\u7701\u4e8b\uff0c\u76f4\u63a5\u521b\u5efa\u4e00\u4e2ashell\u811a\u672c\uff0c\u5f00\u542f\u7f51\u5361\u95f4\u6d41\u91cf\u4ea4\u6362\uff0c\u5f00\u542fNAT\uff0c\u8bbe\u7f6eDNS\u8f6c\u53d1\uff0c\u8bbe\u7f6e80\u7aef\u53e3\u6d41\u91cf\u5168\u90e8\u8f6c\u53d1\u52303128\u7aef\u53e3\u4ea4\u7ed9squid\u5904\u7406\u3002<\/span><\/p>\n<p>[root@Slyar ~]# vim squid.sh #\u521b\u5efa\u811a\u672c\u6587\u4ef6<\/p>\n<p>#!\/bin\/bash<br \/>\necho \"1\" &gt; \/proc\/sys\/net\/ipv4\/ip_forward<br \/>\nmodprobe iptable_nat<br \/>\n\/sbin\/iptables -t nat -A POSTROUTING -j MASQUERADE<br \/>\niptables -t nat -A PREROUTING -p udp --dport 53 -j DNAT --to 172.16.5.133<br \/>\niptables -t nat -A PREROUTING -i eth1 -p tcp -s 192.168.1.0\/24 --dport 80 -j REDIRECT --to-ports 3128<\/p>\n<p>[root@Slyar ~]# chmod o+x squid.sh #\u7ed9\u811a\u672c\u6267\u884c\u6743\u9650<br \/>\n[root@Slyar ~]# .\/squid.sh #\u542f\u52a8\u811a\u672c<\/p>\n<p>5\u3001\u5c06iptables\u6307\u5b9a\u4fdd\u5b58\u5230\u914d\u7f6e\u6587\u4ef6<\/p>\n<p>[root@Slyar ~]# service iptables save<\/p>\n<p>6\u3001\u91cd\u65b0\u542f\u52a8iptables<\/p>\n<p>[root@Slyar ~]# service iptables restart<\/p>\n<p>7\u3001\u6d4b\u8bd5squid\u900f\u660e\u4ee3\u7406<\/p>\n<p>\u5ba2\u6237\u7aef\u8bbe\u7f6eIP\u5730\u5740:192.168.1.x\/24<\/p>\n<p>\u7f51\u5173\uff1a192.168.1.254<\/p>\n<p>DNS\u670d\u52a1\u5668\uff1a192.168.1.254<\/p>\n<p>8\u3001\u6253\u5f00IE\uff0c\u4e0d\u7528\u8bbe\u7f6e\u4ee3\u7406(\u56e0\u4e3a\u662f\u900f\u660e\u4ee3\u7406)\uff0c\u8f93\u5165www.slyar.com\u5982\u679c\u80fd\u6253\u5f00\u5c31\u6210\u529f\u3002<\/p>\n<p>9\u3001\u8865\u5145\u975e\u900f\u660e\u4ee3\u7406\u6d4b\u8bd5\u65b9\u6cd5\uff1a\u6253\u5f00IE - \u5de5\u5177 - Internet\u9009\u9879 - \u8fde\u63a5 - \u5c40\u57df\u7f51\u8bbe\u7f6e - \u4ee3\u7406\u670d\u52a1\u5668\uff0c\u8bbe\u7f6e\u670d\u52a1\u5668IP\u4e3a192.168.1.254\uff0c\u7aef\u53e33128\uff0c\u786e\u5b9a\u3002<\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"http:\/\/www.slyar.com\/blog\">Slyar Home<\/a> &raquo; <a href=\"http:\/\/www.slyar.com\/blog\/squid-iptables-transparent.html\">Squid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u4f5c\u8005\uff1a\u59dc\u5357(Slyar) \u6587\u7ae0\u6765\u6e90\uff1aSlyar Home (www.slyar.com) \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff0c\u8c22\u8c22\u5408\u4f5c\u3002 \u7b80\u5355\u8bb0\u5f55\u4e00\u4e0bSquid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e \u73af\u5883\uff1aVirtualBox + CentOS 6.0 + squid-3.1.4-1.e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[316,906,289],"class_list":["post-1498","post","type-post","status-publish","format-standard","hentry","category-computer","tag-dns","tag-linux","tag-289"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u5728CentOS6.0\u4e0b\u8fdb\u884cSquid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e\u3002\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Slyar\"\/>\n\t<meta name=\"keywords\" content=\"slyar,linux,squid,\u900f\u660e,\u4ee3\u7406,proxy,centos,iptables,squid.conf\" \/>\n\t<link rel=\"canonical\" href=\"http:\/\/www.slyar.com\/blog\/squid-iptables-transparent.html\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"zh_CN\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Slyar Home | \u8bb0\u5f55\u4e2a\u4eba\u751f\u6d3b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Squid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e - Slyar Home\" \/>\n\t\t<meta property=\"og:description\" content=\"\u5728CentOS6.0\u4e0b\u8fdb\u884cSquid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e\u3002\" \/>\n\t\t<meta property=\"og:url\" content=\"http:\/\/www.slyar.com\/blog\/squid-iptables-transparent.html\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2011-07-20T17:48:54+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-07-03T22:56:07+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Squid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e - Slyar Home\" \/>\n\t\t<meta name=\"twitter:description\" content=\"\u5728CentOS6.0\u4e0b\u8fdb\u884cSquid\u900f\u660e\u4ee3\u7406\u670d\u52a1\u5668\u7684\u914d\u7f6e\u3002\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"http:\\\/\\\/www.slyar.com\\\/blog\\\/squid-iptables-transparent.html#article\",\"name\":\"Squid\\u900f\\u660e\\u4ee3\\u7406\\u670d\\u52a1\\u5668\\u7684\\u914d\\u7f6e - Slyar 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