Henrik Hi, Thanks for your reply. >>external_acl_type session ttl=0 negative_ttl=0 children=10 concurrency=200 %SRC /usr/local/squid/libexec/squid_session -t 30 I assume the %SRC variable in the above string is what the session is based on. Is there away to add some other uniqueness or variable to allow squid to differentiate between the real end users ? Cheers Adam -----Original Message----- From: Henrik Nordstrom [mailto:henrik@xxxxxxxxxxxxxxxxxxx] Sent: 03 November 2009 01:53 To: Adam Binks Cc: squid-users@xxxxxxxxxxxxxxx Subject: Re: Squid & squid_session mån 2009-11-02 klockan 16:07 +0000 skrev Adam Binks: > My question is, without using routed static IP's at each site, is it > possible to have squid detect the different end users at each site ? Only if you figure out some other means of differentiating the users at the TCP/IP level. I don't. Regards Henrik