Q. How do I block any website accessing the Internet using squid proxy server?
A. You can simply use squid ACL to block access to any web site. There are 3 steps:
#1. Create a text file with blocked domain name list such as baddomain1.com, mail.yahoo.com, gmail.com and so on
#2. Define Acl
#3. Restart squid
First, create a file called /etc/squid/blocked.domains.acl
# vi /etc/squid/blocked.domains.acl
Append domain names,
Save and close the file. Open squid.conf file:
# vi /etc/squid/squid.conf
Create acl called blockeddomain:
acl blockeddomain dstdomain "/etc/squid/blocked.domains.acl"
Deny http access, enter:
http_access deny blockeddomain
Close and save the file. Restart squid proxy server:
# /etc/init.d/squid restart