[root@lan ~]# yum -y install squid 

 Loading "installonlyn" plugin Loading "fastestmirror" plugin Setting up Install Process Setting up repositories base 100%
 |=========================| 1.1 kB    00:00  updates 100% |=========================| 951 B    00:00  addons 100% 

|=========================| 951 B    00:00  extras 100% |=========================| 1.1 kB    00:00  
Loading mirror speeds from cached hostfile Reading repository metadata in from local files Parsing package
 install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. --->
 Downloading header for squid to pack into transaction set. squid-2.6.STABLE6-4.el5.i  100% |===================
=====|  139 kB    00:00 ---> Package squid.i386 7:2.6.STABLE6-4.el5 set to be updated
 --> Running transaction check   Dependencies Resolved   =========================================================== 
Package Arch  Version  Repository  Size  =========================================================== Installing:   squid i386  7:2.6.STABLE6-4.el5     updates  1.2 M    Transaction Summary ==========================================
================= Install 1 

Package(s)  Update 0 Package(s)  Remove 0 Package(s)     Total download size: 1.2 M Downloading Packages: 
(1/1): squid-2.6.STABLE6- 100% 

|====================| 1.2 M 00:00  Running Transaction Test Finished Transaction Test Transaction Test Succeeded
 Running Transaction   Installing:   

squid#################################### [1/1]     Installed: squid.i386 7:2.6.STABLE6-4.el5 Complete! 

 [root@lan ~]# vi /etc/squid/squid.conf   

 http_port 8080     // Thay đôi port cho proxy     

acl CONNECT method CONNECT  acl lan src 192.168.0.0/255.255.255.0   // Thêm (Chỉ cho phép LAN)     

http_access allow localhost  http_access allow lan  // Thêm (Chỉ cho phép LAN)   


http_access deny all   visible_hostname lan.quantrinet.com  // Thêm dòng     

# forwarded_for on  forwarded_for off       header_access Referer deny all  // Thêm   

header_access X-Forwarded-For deny all header_access Via deny all header_access Cache-Control deny all     


[root@lan ~]# /etc/rc.d/init.d/squid start  


init_cache_dir /var/spool/squid... Starting squid: [  OK  ]  


[root@lan ~]# chkconfig squid on