Help

Squid Access controls can be very complex, or very simple. The most important thing to remember is that it DOES MATTER in which order you place the ACL's.
ACL's are placed in the main config file for squid which is /etc/squid/squid.conf

I will list a few common examples:

Standard ACL to allow all IP's on internal network:

acl localnet src 192.168.1.0/24
http_access allow localnet

ACL to allow certain IP addresses:

acl localnet src 192.168.1.10 192.168.1.12 192.168.1.81
http_access allow localnet

ACL based on time restrictions:

acl worktimes time [MTWHF] [08:00-17:00]
http_access allow worktimes

More detailed ACL descriptions can be found here.....