What I have done is configured the load balancers to do a GET on a bogus URL: GET http://health.check/please/ignore Then, to ignore these requests to prevent log spam: acl healthcheck dstdomain health.check log_access deny healthcheck Thanks, Josh -----Original Message----- From: Baird, Josh Sent: Tuesday, March 23, 2010 9:45 AM To: squid-users@xxxxxxxxxxxxxxx Subject: Heath Check HTTP Request to Squid I need to configure a pair of load balancers in front of Squid to send periodic health HTTP requests to my Squid servers to make sure they are up and functioning properly. How should I structure this HTTP request? A "GET /" results in an invalid-request. What type of request can I use that will differentiate its self from normal proxied requests and not cause Squid to bark at me for it being invalid? Thanks