DNS lookup failures

From: Chris Fedde <cfedde@dont-contact.us>
Date: Fri, 09 Aug 1996 22:58:18 -0600


It appears that squid ipcache only keeps one address per name.
This is a problem when proxying to sites that have multiple A
records. In the event that one of the addresses is unavailable and
squid has cached that address it will continually return site
unreachable even though a connection to the host is possible.
This is a mis-feature.

Most DNS aware clients will try each address returned from DNS in
succession. BIND implements a perfectly functional IP address
cache that follows all the "right" rules. I'm thinking about
ripping out the whole ipcache system and replacing it with a simple
call to gethostbyname.

OK, I've got my flame suit on now.
Received on Fri Aug 09 1996 - 22:00:20 MDT

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