Install Squid

• Buka file konfigurasi squid3 di direktori /etc/squid3 dengan editor nano :
  
  nano /etc/squid3/squid.conf

• Setelah terbuka samakan isi-nya atau buat atau seperti file konfigurasi jadi squid3 saya di bawah ini :
  
  # WELCOME TO SQUID 3.0.STABLE18
  # powered by citeureup foundation
  # -------------------------------
  acl manager proto cache_object
  acl localhost src 127.0.0.1/32
  acl to_localhost dst 127.0.0.0/8
  acl lokal src 192.168.0.0/24
  #
  acl SSL_ports port 443 # https
  acl SSL_ports port 563 # snews
  acl SSL_ports port 873 # rsync
  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 Safe_ports port 631 # cups
  acl Safe_ports port 873 # rsync
  acl Safe_ports port 901 # SWAT
  acl purge method PURGE
  acl CONNECT method CONNECT
  #
  http_access allow manager localhost
  http_access deny manager
  http_access allow purge localhost
  http_access deny purge
  http_access deny !Safe_ports
  http_access deny CONNECT !SSL_ports
  http_access allow lokal
  http_access allow localhost
  http_access deny all
  #
  http_reply_access allow all
  icp_access allow lokal
  icp_access deny all
  #
  http_port 3128 transparent
  #
  dead_peer_timeout 10 seconds
  hierarchy_stoplist cgi-bin ?
  #
  cache_mem 64 MB
  maximum_object_size_in_memory 512 KB
  memory_replacement_policy lru
  #
  cache_replacement_policy lru
  cache_dir aufs /home/proxy 25000 72 256
  maximum_object_size 20000 KB
  #
  cache_swap_low 80
  cache_swap_high 85
  #
  access_log /var/log/squid3/access.log squid
  cache_log /var/log/squid3/cache.log
  #
  refresh_pattern ^ftp: 1440 20% 10080
  refresh_pattern ^gopher: 1440 0% 1440
  refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
  refresh_pattern (Release|Package(.gz)*)$ 0 20% 2880
  refresh_pattern . 0 20% 4320
  refresh_pattern /.gif 4320 50% 43200
  refresh_pattern /.jpg 4320 50% 43200
  refresh_pattern /.jpeg 4320 50% 43200
  refresh_pattern /.png 4320 50% 43200
  refresh_pattern ^http://www.kaskus.us/.* 720 100% 10080
  refresh_pattern ^http://www.indowebmaster.com/.* 720 100% 10080
  refresh_pattern ^http://www.twitter.com/.* 720 100% 10080
  refresh_pattern ^http://www.friendster.com/.* 720 100% 10080
  refresh_pattern ^http://mail.yahoo.com/.* 720 100% 10080
  refresh_pattern ^http://*.yahoo.*/.* 720 100% 7200
  refresh_pattern ^http://*.google.com/.* 720 100% 10080
  refresh_pattern ^http://www.telkomspeedy.com/.* 720 100% 28800
  refresh_pattern ^http://*.blogsome.com/.* 720 80% 10080
  refresh_pattern ^http://*.wordpress.com/.* 720 80% 10080
  refresh_pattern ^http://detik.com/.* 720 90% 2880
  #
  quick_abort_min 16 KB
  quick_abort_max 16 KB
  quick_abort_pct 95
  #
  read_ahead_gap 16 KB
  negative_ttl 2 minutes
  negative_dns_ttl 1 minute
  minimum_expiry_time 30 seconds
  store_avg_object_size 13 KB
  #
  acl shoutcast rep_header X-HTTP09-First-Line ^ICY.[0-9]
  ie_refresh on
  extension_methods REPORT MERGE MKACTIVITY CHECKOUT
  #
  forward_timeout 1 minutes
  connect_timeout 1 minute
  peer_connect_timeout 30 seconds
  read_timeout 1 minutes
  request_timeout 1 minutes
  persistent_request_timeout 2 minutes
  client_lifetime 1 day
  half_closed_clients on
  shutdown_lifetime 30 seconds
  #
  cache_mgr citeureupfoundation
  #
  error_directory /usr/share/squid3/errors/templates
  hosts_file /etc/hosts
  #
  coredump_dir /var/spool/squid

- Save (Ctrl+O) dan keluar dari nano (Ctrl+X) - lakukan reload/reconfigurasi 

/etc/init.d/squid3 reload

- Check terlebih dahulu apakah benar-tidaknya konfigurasi di squid 

squid3 -k parse

- Buat swap cache untuk menerapkan direktory cache dari squid 

squid3 -z

- Restart squid3 

/etc/init.d/squid3 restart

• Menerapkan aturan iptables
  
  iptables -t nat -A PREROUTING -i eth3 -p tcp --dport 80 -j REDIRECT --to-port 3128
  
  Copykan juga ke /etc/rc.local hingga terlihat seperti berikut supaya tidak hilang sekalipun komputer server di reboot
  
  #!/bin/sh -e
  #
  # rc.local
  #
  # This script is executed at the end of each multiuser runlevel.
  # Make sure that the script will "exit 0" on success or any other
  # value on error.
  #
  # In order to enable or disable this script just change the execution
  # bits.
  #
  # By default this script does nothing.
  
  iptables -t nat -A PREROUTING -i eth3 -p tcp --dport 80 -j REDIRECT --to-port 3128
  exit 0

Selesai, selamat mencoba!!