Remember this?
Kevin Darcy
kcd at daimlerchrysler.com
Wed Apr 11 01:08:07 UTC 2001
Mark.Andrews at nominum.com wrote:
> >
> > >>nyc not delegated
> > >>because it and booksellers.com served out of same authoritative server.
> >
> >
> > >I don't understand that last sentence. Why should the presence or absence of
> > >a delegation be in any way dependent on whether or not the parent and child
> > >zone are "served out of same authoritative server"? To put it another way:
> > >what do you think will break if you add the delegation?
> >
> >
> > Cricket said you can't delegate away what you claim to be authoritative for.
> > I'm a little confused, did you mean for me to delegate nyc to myself?
>
> If the parent delegates to you, you cannot delegate the *same* zone
> to someone else.
>
> You can always delegate subzones (nyc.booksellers.com is a subzone
> of booksellers.com) to a different (or same) set of nameservers
> as those for the parent zone. The usual reason for doing this is
> to move administative responsability. The other reason is to be
> consistant you have to delegate some sub zones for administative
> reasons and you do the others to be consistant even though you
> are still adminstering them.
There are other possible reasons as well:
1. To break up large zones in order to minimize zone-transfer latency/overhead.
2. To separate dynamically-maintained from statically-maintained data, or data
with different access/update privileges.
- Kevin
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