Re: [cobalt-users] DNS problem?

["Nico Meijer" <nico.meijer@xxxxxxxxx>]

Hi Frank,

> Have a strange one here. If I run Neotrace on any of my virtual sites it
> lists the machine name as the first virtual site name, ie. if xyz.com is a
> virtual site, abc.com comes back as the machine name. Very Strange.

This behaviour is perfectly normal. What any traceroute program does is get
the names of the hops from the IP addresses, not the other way round (like a
webbrowser, for instance).

To follow your example, vsite xyz.com probably has the same IP as the main
vsite abc.com. If you or your dns admin have made reverse records (PTR) for
your ip's, you probably have done it in the abc.com domain, since this is
probably your own (first) domain.

The traceroute program gets the ip for xyz.com from your input, does a
reverse lookup on it and finds your host in the abc.com domain.

Am I being clear enough? Sometimes, I can't quite follow myself, so I'm just
asking. ;-)
Anyway, it has to do with reverse lookups.

> This
> includes any MX records like mail.xyz.com. And yes, I am unable to send or
> receive mail on any of the domains. Ouch!

Ouch, indeed, but it's too broad a subject to say anything useful about.
Could you be more specific? These two matters do not have to relate. Does
sendmail know it has to receive mail for xyz.com? Could you post a 'real'
live example of a zonefile? Do you do DNS on a Cobalt?

Have a great one... Nico