squid安裝配置工作記錄

背景環境：開發人員不能上外網，但又有一些比較特殊的網站需要用到，所有用squid進行透明代理上網，之前想到haproxy，後來查閱資料貌似haproxy只能轉寄不能代理上網。

搭建前提：squid搭建透明代理上網，理論上需要兩張網卡，兩個Ip,兩個ip在不同的網段，一個ip可以串連外網上網，一個ip串連內網。

[root@linux-virsh-106 log]# ifconfigeth0      Link encap:Ethernet  HWaddr 00:0C:29:E1:9A:69          inet addr:192.168.1.107  Bcast:192.168.1.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fee1:9a69/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:382562 errors:0 dropped:0 overruns:0 frame:0          TX packets:65671 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:78070930 (74.4 MiB)  TX bytes:5258206 (5.0 MiB)eth1      Link encap:Ethernet  HWaddr 00:0C:29:E1:9A:73          inet addr:192.168.10.26  Bcast:192.168.10.255  Mask:255.255.255.0          inet6 addr: fe80::20c:29ff:fee1:9a73/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:320136 errors:0 dropped:0 overruns:0 frame:0          TX packets:81908 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:22754485 (21.7 MiB)  TX bytes:59173280 (56.4 MiB)

這裡我選用了eth0 192.168.1.107可以和外網聯通，eth1 192.168.10.26和內網聯通

關於ip的配置在/etc/sysconfig/network-scripts/修改 ifcfg-eth0和ifcfg-eth1即可 修改完重啟網卡就行了。

[root@linux-virsh-106 network-scripts]# cat ifcfg-eth0# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)DEVICE=eth0BOOTPROTO=static#BROADCAST=192.168.1.255HWADDR=00:0C:29:E1:9A:69IPADDR=192.168.1.107IPV6INIT=yesIPV6_AUTOCONF=yesNETMASK=255.255.255.0#NETWORK=192.168.1.0GATEWAY=192.168.1.1ONBOOT=yes[root@linux-virsh-106 network-scripts]# cat ifcfg-eth1# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)DEVICE=eth1BOOTPROTO=staticONBOOT=yes#HWADDR=00:0c:29:e1:9a:73IPADDR=192.168.10.26NETMASK=255.255.255.0

網卡設定好了，開始設定iptables的參數

[root@linux-virsh-106 network-scripts]# echo "1" >> /proc/sys/net/ipv4/ip_forward[root@linux-virsh-106 network-scripts]# service iptables start[root@linux-virsh-106 network-scripts]# iptables -LChain INPUT (policy ACCEPT)target     prot opt source               destination      Chain FORWARD (policy ACCEPT)target     prot opt source               destination      Chain OUTPUT (policy ACCEPT)target     prot opt source               destination     [root@linux-virsh-106 network-scripts]# iptables -F[root@linux-virsh-106 network-scripts]# iptables -t nat -F[root@linux-virsh-106 network-scripts]# iptables -t nat -LChain PREROUTING (policy ACCEPT)target     prot opt source               destination      Chain POSTROUTING (policy ACCEPT)target     prot opt source               destination      Chain OUTPUT (policy ACCEPT)target     prot opt source               destination      [root@linux-virsh-106 network-scripts]# iptables -t nat -A POSTROUTING -s 192.168.10.0/24 -j SNAT --to-source 192.168.1.107[root@linux-virsh-106 network-scripts]# iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 3128[root@linux-virsh-106 network-scripts]# service iptables save將當前規則儲存到 /etc/sysconfig/iptables：                 [確定][root@linux-virsh-106 network-scripts]# iptables -t nat -LChain PREROUTING (policy ACCEPT)target     prot opt source               destination      REDIRECT   tcp  --  anywhere             anywhere            tcp dpt:http redir ports 3128Chain POSTROUTING (policy ACCEPT)target     prot opt source               destination      SNAT       all  --  192.168.10.0/24      anywhere            to:192.168.1.107Chain OUTPUT (policy ACCEPT)target     prot opt source               destination

安裝squid

[root@linux-virsh-106 network-scripts]# yum install squid

配置squid

[root@linux-virsh-106 network-scripts]# cd /etc/squid/[root@linux-virsh-106 squid]# lscachemgr.conf  errors  icons  mib.txt  mime.conf  mime.conf.default  msntauth.conf  msntauth.conf.default  squid.conf  squid.conf.bak20140120  squid.conf.bak2014012002  squid.conf.default

提取出設定檔中有用的資訊

[root@linux-virsh-106 squid]# grep -v "^#" squid.conf.bak20140120 |grep -v "^$" >> squid.conf

啟動squid

[root@linux-virsh-106 squid]# service squid start啟動 squid：.                                              [確定]

[root@linux-virsh-106 squid]# netstat -ntlActive Internet connections (only servers)Proto Recv-Q Send-Q Local Address               Foreign Address             State   tcp        0      0 127.0.0.1:2208              0.0.0.0:*                   LISTEN   tcp        0      0 0.0.0.0:1004                0.0.0.0:*                   LISTEN   tcp        0      0 0.0.0.0:111                 0.0.0.0:*                   LISTEN   tcp        0      0 127.0.0.1:631               0.0.0.0:*                   LISTEN   tcp        0      0 0.0.0.0:3128                0.0.0.0:*                   LISTEN   tcp        0      0 0.0.0.0:25                  0.0.0.0:*                   LISTEN   tcp        0      0 127.0.0.1:2207              0.0.0.0:*                   LISTEN   tcp        0      0 :::22                       :::*                        LISTEN

基本工作已經完成，現在根據自己的需求配置squid

[root@linux-virsh-106 squid]# cat squid.confacl lan src 192.168.10.0/24  #這個是內網ip要串連的地址acl all src 0.0.0.0/0.0.0.0#自己添加的可以允許訪問的urlacl url1 url_regex -i qq.comacl url2 url_regex -i pengyou.comacl url3 url_regex -i baidu.comacl manager proto cache_objectacl localhost src 127.0.0.1/255.255.255.255acl to_localhost dst 127.0.0.0/8acl SSL_ports port 443acl Safe_ports port 80      # httpacl Safe_ports port 21      # ftpacl Safe_ports port 443     # httpsacl Safe_ports port 70      # gopheracl Safe_ports port 210     # waisacl Safe_ports port 1025-65535  # unregistered portsacl Safe_ports port 280     # http-mgmtacl Safe_ports port 488     # gss-httpacl Safe_ports port 591     # filemakeracl Safe_ports port 777     # multiling httpacl CONNECT method CONNECThttp_access allow manager localhosthttp_access deny managerhttp_access deny !Safe_portshttp_access deny CONNECT !SSL_portshttp_access allow localhosthttp_access allow url1http_access allow url2http_access allow url3http_access deny allicp_access allow all#在連接埠的後面要加上transparent，否則無法轉寄http_port 3128 transparent#visible_hostname 也是要自己添加上去visible_hostname 192.168.10.26hierarchy_stoplist cgi-bin ?access_log /var/log/squid/access.log squidacl QUERY urlpath_regex cgi-bin \?cache deny QUERYrefresh_pattern ^ftp:       1440    20% 10080refresh_pattern ^gopher:    1440    0%  1440refresh_pattern .       0   20% 4320acl apache rep_header Server ^Apachebroken_vary_encoding allow apachecoredump_dir /var/spool/squid

根據自己需求在iptables添加連接埠資訊

[root@linux-virsh-106 squid]# iptables -t nat -A PREROUTING -p tcp --dport 8003 -j REDIRECT --to-port 3128

查看資料

http://www.ahxh.cn/html/2011/jiaocheng_1102/15411.html

視頻資料

http://item.taobao.com/item.htm?spm=686.1000925.1000774.13.9vuJG9&id=37129897170

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