***### DNS sub domain creation###***

[Kevin Darcy]

admjcd wrote:

> I am running BIND 8.2.3 on a Tru64 UNIX machine.
> I think I am clear on part 1.
> For part 2, do I think I need to edit "/etc/named.conf" and add a zone entry for "ns1.blah.com" ?
> Probably something like:
>
> zone "ns1.blah.com" {
>         type master;
>         file "ns1.blah.com";
>         check-names warn;
> };

That's the basic format, however, you would use the name of the subdomain, e.g. "sub.blah.com". Presumably, "ns1.blah.com" is the name of a
nameserver, not the name of the subdomain itself. You don't need to make "ns1.blah.com" a separate zone if you don't want to, but it has to resolve
*somehow*. If it doesn't already exist there, then normally this would entail adding a "ns1" entry to the "blah.com" zone.

The "file" parameter can be any legal pathname you want it to be, of course...

> Also, I am not sure what you mean by part 3.
> How exactly do you "populate the zone"?
> Where specifically do I add the SOA records, NS records, etc...

The resource records go into the zonefile you specified in the "file" parameter of the zone { } definition. Where else did you think they might go?

                                                                                                                                        - Kevin


>
>
> -----Original Message-----
> From: Bill Larson [mailto:wllarso at swcp.com]
> Sent: Thursday, August 23, 2001 10:23 AM
> To: admjcd
> Subject: Re: ***### DNS sub domain creation###***
>
> There are two parts to this answer.  You need to delegate the sub-domain and then you need to create create and populate the zone.
>
> To delegate "sub.domain.com", in the "domain.com" zone file you need to add:
>
>     sub    IN    NS    ns1.blah.com.
>
> Note that this will occur on the master server for the "domain.com" domain.  Also note that "ns1.blah.com" ends with a period.  This final period
> is needed to insure that the "ns1.blah.com" doesn't get fully qualified as "ns1.blah.com.domain.com".
>
> Then on ns1.blah.com, you need to add the "sub.domain.com" zone to your configuration.  Exactly how this is done depends upon if you are running
> BIND-4, BIND-8/9, or Win-NT/2K DNS, so check this out in your manuals.
>
> Finally, to populate the "sub.domain.com" zone, you will have all of the standard resource records for any DNS zone.  At the minimum, you will need
> an SOA record and one (or more) NS records.  From there you can add "A", "MX", etc. to your hearts desire.
>
> Bill Larson
>
> admjcd wrote:
>
> > >  -
> > >
> > > How do I create a sub-domain in DNS?
> > > For example, I want ns1.blah.com to point to the ns1 nameserver in a different domain so that it is authoritative for all "blah.com" requests.
> > > Note: I am the blah.com administrator.
> > > Any help would be greatly appreciated.
> > > Thanks.