[NCLUG] gethostbyaddr(x.x.200.6) failed: 1

[Joshua SS Miller]

Thank you, I managed to push the admin to setup the dns correctly.

Joshua SS Miller

On Thu, 2003-05-15 at 09:47, Michael Milligan wrote:
> Joshua SS Miller wrote:
> > Hello all, 
> > 
> > A quick question how do I stop gethostbyaddr lookups on sendmail?  I
> > have looked on the web, got out my sendmail book, and asked a few people
> > but no one seems to know.  I am unable to add them to dns and would
> > really rather not add them to /etc/hosts.  Is there any other way?
> > 
> > sendmail-8.11.6
> > 
> > Error is:
> > 
> > May 15 01:23:20 testmachine sendmail[27809]: gethostbyaddr(x.x.200.6)
> > failed: 1
> > May 15 01:23:21 testmachine sendmail[27828]: gethostbyaddr(x.x.203.25)
> > failed: 2
> > 
> 
> First off, Sendmail has been out of favor with me for a number of years, 
> so I'm not sure on my first suggestion...  turn off the lookups.  But 
> assuming that's not possible, about your only option (short of hacking 
> the source of course) is to setup a local DNS server that Sendmail uses 
> (via either it's resolve.conf or the global system one, i.e., 
> "nameserver 127.0.0.1") which overrides these DNS reverse-mapping zones 
> (200.x.x.in-addr.arpa and 203.x.x.in-addr.arpa) and provides whatever 
> information you want to Sendmail.  And this server forwards all other 
> queries to your original set of DNS servers.
> 
> If you want to do that, I'd be happy to help you with the exact 
> configuration syntax.
> 
> Regards,
> Mike
-- 
Joshua SS Miller <joshua at fitsnips.net>
Fitsnips.net