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Bug#519774: libc6: causes many programs not to be able to resolve dns addresses



Hi - 

> The problem is that the DNS server of your ISP does not conform to the
> RFC and only answer to the AAAA query with a void answer. It never
> answer to the A query, so the glibc resolver can only conclude the
> whole query has no answer.

Just a thought, many DNS ALGs on firewalls (eg, Juniper NetScreen) will
close the UDP/53 session after one packet (response, presumably) is
received, and drop any subsequent response packets.  It could be that
the DNS servers are fine, just the firewall protecting it is the
culprit.  I suspect this can be hit or miss due to timing of these
events.

- Mark

-- 
Mark Kamichoff
prox@prolixium.com
http://www.prolixium.com/

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