subdomain problem...

[Barry Margolin]

In article <chs8ca$17vk$1 at sf1.isc.org>,
 "Tom Schmitt" <TomSchmitt at gmx.de> wrote:

> > > When you want to make subdomains elsewhere, which means to delegate
> > > the
> > > subdomain, you only have to add these to records in the zone above and
> > > nothing else:
> > > subdomain.yourdomain.de IN NS nameofnameserver.subdomain.yourdomain.de
> > > nameofnameserver.subdomain.yourdomain.de IN A 1.2.3.4
> > 
> > You seem to be talking about subzones, not subdomains.  For subdomains, 
> > you can put all the records in the same zone file, as the previous 
> > response explained.
> > 
> 
> Can you explain that? The subdomain can contain several zones, so what is
> the goal putting them all together in one zonefile?

The question should be asked the other way around: if the subdomains are 
being hosted by the same server as the parent domain, what's the goal of 
putting them in different zonefiles?  The primary purpose of delegating 
subzones is that there's an administrative difference, with the zones 
being managed by different people and/or hosted on different sets of 
servers.

There are some cases of really large zones where there are benefits to 
splitting it up, just to cut down the overhead of reloading or 
transfering the zone.  However, incremental transfers can also solve the 
zone transfer problem.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***