konfigurasi sederhana squid proxy pada Linux

Configurasi sederhana proxy server menggunakan Squid di Linux Centos 5.0.
Pastikan aplikasi squid sudah terinstallasi.
Tentukan ip address pada proxy server yang terkoneksi internet, Misal 192.168.0.223/255.255.255.0

# rpm -qa |grep squid

# rpm -qa |grep squid
squid-2.6.STABLE21-3.el5

Jika squid terinstall maka akan muncul seperti di atas.
Letak file configurasi squid di /etc/squid/squid.conf

# vim /etc/squid/squid.conf

Baris yang perlu di rubah dan ditambahi:

http_port 8080
icp_port 3130

hierarchy_stoplist cgi-bin ? .js .jsp .g .do .php .asp .cgi
acl QUERY urlpath_regex cgi-bin \? .js .jsp .g .do .php .asp .cgi
no_cache deny QUERY

cache_mem 16 MB
maximum_object_size 256 MB
cache_dir ufs /cache 100 16 256
access_log /var/log/squid/access.log squid
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log

#Recommended minimum configuration:
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl bac src 192.168.0.15-192.168.0.253 #sesuaikan dengan class ip yang di gunakan.
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT

# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager
# Deny requests to unknown ports
http_access deny !Safe_ports
# Deny CONNECT to other than SSL ports
http_access deny CONNECT !SSL_ports

http_access allow localhost
http_access allow all
http_access allow bac --> untuk memperbolehkan klass "bac" untuk berinternet.

Setelah file squid.conf dikonfigurasi jalankan service squid.
Caranya:

# service squid start
atau
# /etc/init.d/squid start

Jika service tersebut sudah selesai dilanjutkan dengan setting koneksi internet pada client.
Cara setting pada browser client:
1. Mozilla
Tools -> Options -> Advanced -> Network -> Setting -> Manual proxy configuration

2. IE
Tools -> Internet Options -> Connections -> Lan Settings
Atau
Control Panel -> Internet Options -> Connections -> Lan Settings


Sesuikan ip proxy mengarah ke proxy server kita.

End.