DNS on Windows Server 2003, 3rd Edition

Managing Delegation

If the special-effects lab gets bigger, we may find that we need additional name servers. We dealt with setting up new name servers in Chapter 9 and even went over what information to send to the parent zone’s administrator. But we never explained what the parent needed to do.

It turns out that the parent’s job is relatively easy, especially if the administrators of the subdomain send complete information. Imagine that the special-effects lab expands to a new network, 192.254.20/24. They have a passel of new, high-powered graphics workstations. One of them, alien.fx.movie.edu, will act as the new network’s name server.

The administrators of fx.movie.edu (we delegated it to the folks in the lab) send their parent zone’s administrators (that’s us) a short note:

Hi!

We've just set up alien.fx.movie.edu (192.254.20.3) as a name server for 
fx.movie.edu.  
Would you please update your delegation information?  I've attached the NS 
records you'll need to add.

Thanks,

Arty Segue
[e-mail]

----- cut here -----

fx.movie.edu.  86400  IN  NS  bladerunner.fx.movie.edu.
fx.movie.edu.  86400  IN  NS  outland.fx.movie.edu.
fx.movie.edu.  86400  IN  NS  alien.fx.movie.edu.

bladerunner.fx.movie.edu.  86400  IN  A  192.253.254.2
outland.fx.movie.edu.      86400  IN  A  192.253.254.3
alien.fx.movie.edu.        86400  IN  A  192.254.20.3

Our job as the movie.edu administrator is straightforward: add the NS and A records to movie.edu. Once again, it’s the New Delegation Wizard to the rescue: select the gray fx.movie.edu ...