Virtual domian as NS ?

[Kevin Darcy]

While it is possible to run multiple nameserver instances on a single box,
I see no reason to do so here. A single nameserver instance is capable of being
both master and slave for different zones. For redundancy, however, every zone
should have at least 2 nameserver *machines* serving it, preferably on
different networks. If you serve a zone all from nameserver instances running
on the same machine, then the machine hardware and operating system becomes a
single point of failure for the zone. So, if you care about availability, get
another box or get someone else to be a slave for your zone(s).


- Kevin

Ridwan wrote:

> hi all
>
> I'm new to the list, sorry if this one has been asked before.
> I have new linux box, comes with 4 IPs. running BIND as dns server, beside
> other web services.
>
> I set the name of the machine as 'home', then created a virtual host for 2nd
> and 3rd IP as 'dns1' and 'dns2'.
> All of three IPs registered at root dns as Name Servers.
> Primary domain of the machine use 'home' and 'dns2' as its dns server
> registered at root dns.
> All of virtual host domains use 'dns1' and 'dns2' as their dns server.
> All of the dns server IPs have PTR records in the network gateway.
>
> Did I set it up correctly?
> I realize that named set to listen to all of IPs in the machine, is there
> anyway I can set multiple named running with each of them listen to
> different IP? What I'm trying to do is named on 'home' and 'dns1' act as
> primary server while named on 'dns2' act as a secondary server.
>