According to this: http://www.squid-cache.org/Versions/v2/2.6/cfgman/header_access.html
2.6 uses "header_access" Hoping it was the same for 2.5x, I entered this into squid.conf header_access X-Forwarded-For deny all ...and it worked like a charm. How did you know it was the X-Forwarded-For header? -----Original Message----- From: Henrik Nordström [mailto:hen...@henriknordstrom.net] Sent: Thursday, February 18, 2010 12:35 PM To: Ryan McCain Cc: 'squid-users@squid-cache.org' Subject: RE: [squid-users] Tiered Squid proxy issue (Microsoft JET Database Engine error '80040e57' tor 2010-02-18 klockan 12:21 -0600 skrev Ryan McCain: > BTW, Websense does support Squid 2.6. Would upgrading from 2.5 to 2.6 > possibly help? Most likely not as the error seems to be on the web server and not Squid. What you can try is to filter out the X-Forwarded-For header to see if that makes any difference. request_header_access X-Forwarded-For deny all [not sure the above syntax works in 2.5.. may be it's header_access, or mabe even older directives, memory of 2.5 and even 2.6 have faded] Regards Henrik