We were trying to modify some ACL (access control lists) in squid to allow traffic to certain websites. Instead of adding each individual hostnames in a domain, we wanted to add all traffic to a certain domain.
Document on the interwebs is old or not clear on how to achieve this.
After some trial and error, here is what works
say you want to allow all traffic to the google.com domain, you create a access list using dstdomain like below
acl name_of_acl dstdomain .google.com
The “.” before the domain name acts as a wildcard
Then you use the acl to allow http access to it like below
http_access allow name_of_acl