How to configure Squid Proxy not to cache a specific domain
Add below Lines to your squid.conf file,
acl santosh dstdomain .mydomain.com
cache deny domain01
santosh = acl name
domain which I do'nt want to cache = mydomain.com
acl santosh dstdomain .mydomain.com
cache deny domain01
santosh = acl name
domain which I do'nt want to cache = mydomain.com