How to block website using SQUID server

You have to do some changes in squid.conf and here are the steps:

• open this file /etc/squid3/squid.conf

• add these lines:

  acl bad_url dstdomain "/etc/squid3/bad-sites.acl"
  http_access deny bad_url
  

• then go to /etc/squid3/bad-sites.acl and add domains with this format

  .google.com
  .msn.com
  .app.facebook.com
  

You can also do by following changes in squid.conf

acl toblock dstdomain .facebook.com .google.com
http_access deny toblock