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Re: exim and DoD - ipv6 dns lookup



* Markus Grunwald (markus.grunwald@gmx.de) [020403 10:33]:
> Hi !
> 
> In the last days, I were configuring my dial on demand (DoD) ppp daemon.
> It's working nearly fine and the past messages about exim were
> interesting. I used some info from there, but now I have a new problem:
> 
> marvin is my mailserver and gateway. It is running exim. When I connect
> to smtp on marvin from another computer (telnet marvin 25), exim does an
> ipv6 dns lookup for "marvin" which fires up my DoD line :(  
> 
> Apr  2 12:55:32 marvin named[2315]: query log on 
> Apr  2 12:56:22 marvin named[2315]: XX+/192.168.42.103/marvin.galaxy.home/AAAA/IN
> Apr  2 12:56:22 marvin named[2315]: ns_forw: sendto([129.187.10.25].53): Network is unreachable
> Apr  2 12:56:22 marvin named[2315]: XX+/192.168.42.103/marvin.galaxy.home/AAAA/IN
> Apr  2 12:56:22 marvin named[2315]: XX+/192.168.42.103/marvin/AAAA/IN
> Apr  2 12:56:23 marvin named[2315]: XX+/192.168.42.103/marvin/AAAA/IN
> Apr  2 12:57:14 marvin named[2315]: query log off 

Are you also running named? It sure looks that way. Can you tell it that
it's authoritative for galaxy.home. and that it should never ask its
forwarders (or anyone else) about it?

Also, I'm not sure I understand what those log lines mean, exactly. Is
192.168.42.103 the computer you're connecting from, or is that marvin's
address? It looks to me like 192.168.42.103 is asking named for marvin's
address, not that marvin is doing a lookup for itself. (Unless marvin ==
192.168.42.103, of course.)

A simpler (but not as elegant) solution would be to add an entry for
marvin in your /etc/hosts . I assume all of your LAN machines are using
marvin's named as their DNS, so adding the zone would give you the
advantage of being able to address machines by their internal names.

Please tell me if my assumptions are wrong, or if this doesn't work for
you, or you need help configuring bind.

good times,
Vineet

-- 
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