we have a squid proxy set up as transparent. a few days ago users started complaining because sometimes they would get a message like: ------------------------------------------ The requested URL could not be retrieved While trying to retrieve the URL: http://mail.yahoo.com/ The following error was encountered: Unable to determine IP address from host name for mail.yahoo.com The dnsserver returned: No Address records This means that: The cache was not able to resolve the hostname presented in the URL. Check if the address is correct. ------------------------------------------ poking in the DNS, i find: Name: login.yahoo.akadns.net Addresses: 64.58.76.98, 64.58.76.99 Aliases: mail.yahoo.com, login.yahoo.com so, mail.yahoo.com isn't an A record, but a CNAME pointing to something at akadns. we are thinking there might be some issue with some dynamic nature of yahoo's dns. are we barking up the right tree? -- [ Jim Mercer jim@pneumonoultramicroscopicsilicovolcanoconiosis.ca ] [ Reptilian Research -- Longer Life through Colder Blood ] [ aka jim@reptiles.org +1 416 410-5633 ]