Proxy Server

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
// line 73: change


acl CONNECT method CONNECT
acl lan src 192.168.0.0/255.255.255.0
// line 2410: add (permit only LAN)


http_access allow localhost
http_access allow lan
// line 2527: add (permit only LAN)

http_access deny all

visible_hostname lan.server-linux.info
// line 2841: add (specify hostname)


# forwarded_for on
forwarded_for off
// line 3117: add (hide IP address)


header_access Referer deny all 
// line 3437: add

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







Start Web browser. Following example is on Microsoft IE 6. Select [Tools] - [Internet Options] and move to [Connections] tab like below








Check 'use a proxy' and input server's hostname and port number set in the section [1] like following example. Then, you can access to internet through proxy.