I've searched high and low, read FAQs, added debugging but can't work this out, sorry if its obvious or been asked before... I have a hierachy of squid caches using v2.4 STABLE 1. One cache needs to determine if sites are on a local net by both destination IP and hostname but it can't do DNS lookups to determine this. I am trying to use dstdom_regex ^10\.0\.0\. to match local host IPs used in the URL but it doesn't work. Even dstdomain 10.0.0.1 does not work and wont match http://10.0.0.1/index.html. The reason I can't use a dst ACL such as 10.0.0.0/255.255.255.0 (even though it works) is because the dst ACL makes the squid cache do DNS lookups for all domains requested. The cache is handling 10000s of URLs which are external and very few internal ones, and the DNS on my cache is connected by WAN to my parent company's central DNS and flooding it with 10000s of DNS lookups that return NXDOMAIN is not an option. Is there anyway to setup an ACL to test for an IP in the destination domain part of a URL without using DNS? Thanks a lot for any help that can be provided.
