[comp.protocols.tcp-ip.domains] Multiple Primary Name Servers

wright@hsi86.hsi.com (Gary Wright) (12/11/90)

Some background:

We have a class B network that is subnetted and spans two 
geographically and administratively distinct sites.
We would like to find a manageable way to update the in-addr.arpa
domain for this network without either site totally relying on
the other.

One possibility that has been suggested is to have a primary name
server for the domain at both sites and to also mark each as
a secondary for the other.  In this way, hosts could be added or
deleted from one site even while the primary name server at the
other site is un-available (network problems, administrator on
vacation etc.)

Does the DNS allow for multiple primary name servers for a zone?
If so what interaction occurs between the primaries?
Is there a better way to handle this problem?

Any tips would be appreciated.
-- 
Gary Wright                                                 ...!uunet!hsi!wright
3M Health Information Systems					  wright@hsi.com

emv@ox.com (Ed Vielmetti) (12/12/90)

In article <2726@hsi86.hsi.com> wright@hsi86.hsi.com (Gary Wright) writes:

   We have a class B network that is subnetted and spans two 
   geographically and administratively distinct sites.
   We would like to find a manageable way to update the in-addr.arpa
   domain for this network without either site totally relying on
   the other.

Allocate authority in-addr.arpa authority separately for each of the
subnets involved. If the net is neatly divided into two parts, that
might just mean cluttering up the first level of the in-addr.arpa
domain with a mess of NS records, one for each subnet.

The "211.141.in-addr.arpa" domain is divided more or less this way,
you might use your favorite domain lookup program (dig is mine) to see
how that's split up.

--Ed
emv@ox.com