CentOS 6 Squid Proxy Install

Today Mama is going to cook a tasty Squid proxy server on CentOS 6. It’s a reliable, trusted solution used in many web filtering appliances around the world. This howto comes with no guarantees!

Install Squid.

yum install epel-release && yum -y install squid

These are very common forward proxy settings.

vi /etc/squid/squid.conf

acl CONNECT method CONNECT <<– look for this line
## Add a new ACL to allow your LAN access to the Proxy:
acl lan src

http_access allow localhost <<– look for this line
## Let the ACL we just defined have http access via the proxy and add/change to:
http_access allow lan

## Look for http_port and change it to:
http_port 8080

## Copy and paste the below to the bottom of the file:
request_header_access Referer deny all
request_header_access X-Forwarded-For deny all
request_header_access Via deny all
request_header_access Cache-Control deny all

## Look for visible_hostname
visible_hostname yourhost.server.world

## Turn off IP address forwarding:
forwarded_for off

Exit vi (:x), turn on the Squid service at boot and start the service now:
chkconfig squid on
service squid start