Hi Just play around squid for a few days, and seems the server occasionally restarted automatically E.g. Squid Object Cache: Version 3.HEAD-20080530 Start Time: Wed, 11 Jun 2008 14:20:56 GMT Current Time: Wed, 11 Jun 2008 14:59:18 GMT Definitively no body no body restart the server at 14:20:56 GMT Or it is normal? Thanks.