Re: [cobalt-users] DNS Problem

[John Rood <john@xxxxxxxxx>]

On Wed, 19 Jul 2000, Masset bvba wrote:

> Dear,
> 
> Today someone helped me with a dns problem (not a cobalt user member)
> We want to use the raq2 server for dns .
> 
> I have setup the domein and forwarded the ip to another server
> works fine
> also the domain without the www. to ip
> works fine
> 
> Now we run a mail server on NT
> 
> When I send mail to name@xxxxxxxxxxxxxxx it works fine
> When I send mail to name@xxxxxxxxxxx it works fine i get this error
> 
> <sales@xxxxxxxxxxx>: Name service error for domain pop.nt4host.com: Host not
>     found
> 
> The person who helped me put somewhere pop.nt4host.com is the files
> I can not find it, so the problem keeps coming
> Where could this be changed ? He tells me that he did not changed anything
> So I think the christmas men did it
> 
> Please help
> 
> Steven

If you're looking for bind's zone file, they reside in /etc/named. One
thing you should understand about domain name, ip addies and email is that
mail routing is seperated from the 'normal' dns lookups. An MTA queries
the dns server for a certain domain for the MX records, which point to
the mailserver(s) for that domain. If these records aren't present, it
falls back to other mechanisms to deliver the mail, like using the A
record for the domain, when present. I think in this case Santa added an
MX record for your domain pointing to pop.nt4host.com, while this host (or
atleast dns entry) doesn't excist. So changing the MX record(s) for that
domain should fix the problem (they should point to the nt box that runs
the mailserver)

Regards,
John

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John C. Rood
UNIX programmer/Database developer/System administrator
SFARC Networks, The Netherlands - http://www.sfarc.net