Red Hat Squid Proxy is a web proxy and cache delivery system!
Squid can be configured as a transparent proxy
Install Red Hat Squid Proxy
yum install squidSecure Squid Service
Squid is a service and all access to a service on Operating System must be checked and secured.
First we need to think what users or groups will have access to manage the squid service, if you need to understand how to manage user and groups on Red Hat read our manual.
All Squid service settings can be configured on file :
vi /etc/squid/squid.confAfter our service is running with a secure user let’s change the default port, open the squid settings file and change the http_port value to 3160
http_port 3160Enforce Squid Security with SELinux
How to Block Specific Ports on Squid Proxy
Block Domains on Squid Proxy
Squid is perfect to block domains on our network. We can build domains blacklists or block and entire TLD.
Read our article in order to understand how squid proxy deal with domains management and blocking.