Two domain name in one machine(continued)

[Kevin Darcy]

huiqun liu wrote:

> Hi, every:
>
> yes, for diffrent domain, i can use different zone file. But how
> about the reverse resolve file? Following is my named.boot file:
> direcory /usr/local/dns
> primary dns1.com.sg dns1.hosts
> primary dns2.com.sg dns2.hosts
> primary 3.2.1.in-addr.arpa  ???
> primary 0.0.127.in-addr.arpa ???
> cache .  db.cache
> For the in-addr.arpa reverse resolve file, which domain should the
> PTR records point to(dns1 or dns2)? I have thought of creating two
> different resolve file, but the 3.2.1.in-addr.arpa is same.

You can point them to dns1 or dns2, or some mixture of the two. Note that few
applications care about reverse lookups at all, and even of those that do,
most of them do a reverse lookup, then a forward lookup of the PTR target
name, and just verify that the forward entry resolves to the original
IP address with which they started. In which case, it doesn't matter which
name the PTR points to. I can't recall *any* application that does a forward
lookup first and then requires that the reverse lookup matches it exactly.
I would consider such an authentication mechanism _broken_.


- Kevin

>
>
> Thanks & Regards
>
> Huiqun
>
> >From: "Gerald Waugh" <gerald at waugh.com>
> >To: "huiqun liu" <liuhuiqun at hotmail.com>
> >Subject: Re: Two domain name in one machine
> >Date: Thu, 9 Nov 2000 08:56:16 -0600
> >
> >"huiqun liu" <liuhuiqun at hotmail.com> wrote
> > > As the domain name change, i need to setup the new domain on
> > > the same machine where the old domain resides, and also keep
> > > these two domain name parallel running for some time.That is
> > > to configure the same machine as dns1.com and dns2.com.
> > > We are using BIND 4.9.4. Does someone has any idea about that?
> > > Should i set different zone file for each domain?
> > > In named.boot file, can i have more than one primary domain?
> > >
> >Of course you can.
> >Just create a zone with the new domain name.
> >It's like we do for virtual sites, I have hundreds of domain names running
> >on my machine.
> >You could just duplicate (rename) your present zone file and edit it with
> >the new domain name.
>