Squid

Squid is an open source caching and forwarding HTTP proxy server.

Quick Usage Guide

To quickly get Squid set up as a HTTP proxy server with caching enabled, install squid and configure it like so:

## Install squid
# yum -y install squid

Configure squid. The configuration located at /etc/squid/squid.conf should have at least the following lines:

# Allow localhost and our local network
http_access allow localhost
http_access allow localnet

# Our local network IP subnet. Adjust this accordingly
acl localnetsrc 10.1.1.0/22

# Use DNS IPv4 lookups first
dns_v4_first on

# Amount of memory used for caching objects
cache_mem 1024 MB

# Maximum object size to cache
maximum_object_size 4096 MB

# Maximum size of cached objects in memory
maximum_object_size_in_memory 8192 KB

# Location of the cache directory
# 2nd parameter is the size of the cache. 10240 = 10 GB
cache_dir ufs /mnt/cache/squid 10240 16 256