Good afternoon list. This is my first post so please accept my apologies if I get something wrong with my post. I have a problem with my squid installation blocking avast updates I have done some Googling, but I've not matched the problem. I'm assuming the extension type is probably giving trouble. The log line reads: 1330705645.961 0 172.16.1.12 TCP_DENIED/403 1431 GET http://download716.avast.com/iavs5x/servers.def.vpx - NONE/- text/html Version: squid -v Squid Cache: Version 2.7.STABLE7 Is this something I can fix with relative ease?