[plug] Help: Slow e-mail after DNS move

[Earnshaw, Mike]

Resolved:

The problem appeared to be Exchange not DNS. On the IMS settings the
connections was set to use DNS rather than our email relay which is on
1.100. When I set the IMS connections back to "host--> 1.100" the mail
queue disappeared and was processed correctly.

Darn thing is [hand on heart] I *did not* change the IMS entry, merely
tried to relocate DNS from 1.100 to 1.6. 1.100 is due for retirement.

Thanks all.

Mike

> -----Original Message-----
> From: Brian Tombleson [mailto:Brian at ParadigmIT.com.au]
> Sent: Tuesday, 8 August 2000 11:24
> To: plug at plug.linux.org.au
> Subject: Re: [plug] Help: Slow e-mail after DNS move
> 
> 
> From: "Earnshaw, Mike" <earnshawm at wa.switch.aust.com>
> Sent: Tuesday, August 08, 2000 10:34 AM
> Subject: [plug] Help: Slow e-mail after DNS move
> 
> > We have two servers 10.0.1.100 which was the DNS server 
> (RH6). I have
> > another server also RH6 that I wanted to be the DNS so that I could
> > remove 1.100, this new one is 1.6
> > I copied the /var/named/ directory from 1.100 to 1.6 and the named.*
> > from /etc If I cat /var/named/1.0.10.rev all the IP's seem to be in
> > there and pointing to the correct places. I can do 
> nslookups from 1.6.
> >
> > Some e-mails from my win$low exchange box take over 5 hrs 
> to send and
> > when you check the queue it reports them being delivered 
> but there was a
> > problem "with host resolution". With the exception of one 
> address I did
> > a nslookup from 1.100 and 1.6 to these address' and both report the
> > correct info. (The M$ Support site suggests I "delete the 
> messages in
> > the queue!" - helpful huh?)
> >
> > I am really not sure where to look next. Any pointers appreciated.
> 
> 
> Mike,
> 
> We would need a fair bit more information, but I would 
> suggest using 'dig'
> instead of nslookup and specify the server you are querying.  
> If the error
> you are getting is name resolution, then probably either 
> something has not
> yet propogated or you've mis-configured it.
> 
> Does everything still work/not work the same if you remove 
> the 10.0.1.100
> machine from the network?
> 
> Are you looking to remove DNS facilities from the 1.100 machine?
> 
> - Brian.
> 
> 
>