bind9 and DNS root

[Luis Paulo]

On Sat, Nov 20, 2010 at 01:33, Ali Khalfan <ali.khalfan at gmail.com> wrote:
> ok, but usually bind9 let's you specify the domain
> (e.g. IN   SOA company.com.) .    If you're a what would be set?
>
> just a bit unclear on how to point to the different dns servers in this case
>

You must create one zone file for each domain, each with its ORIGIN [1]

Then, on /etc/bind/named.conf.local
  ...
  zone "domain1" {
        file "db.zonefile1";
        ...
  };

  zone "domain2" {
        file "db.zonefile2";
        ...
  };
 ...

Hope I'm not wrong and this may help
(I don't think you must have a name server for each domain, but will
have to try it to be sure.)
Regards
Luis

[1] Your statement " (e.g. IN   SOA company.com.)"
After SOA you specify the dns server, not the domain. Domain is set on
the zone definition. See, for example,
http://www.zytrax.com/books/dns/ch8/soa.html (and $ORIGIN and @)

name        ttl class rr    name-server email-addr  (sn ref ret ex min)
example.com.    IN    SOA   ns.example.com. hostmaster.example.com. ( ... )

Also
http://www.bind9.net/manuals
http://www.rfc-archive.org/getrfc.php?rfc=1035