Can internal root server also forward?

[Barry Margolin]

In article <g8vl2j$1a26$1 at sf1.isc.org>, joeunc <joeunc at gmail.com> 
wrote:

> Have an internal root server with zone db.root.
> Forwarding is not turned on as global option. Tried to add two forward
> zones with forward only into the root server and it would never
> forward. NXDOMAIN on localhost digs for that forward zone. If the zone
> is delegated in the the db.root file with NS  records it works
> obviusly, The internal root server is running BIND 9.2.2.
> 
> Are there limitations on a root server having forward only zones?

It has nothing to do with being a root server.  You would have the same 
problem if you were authoritative for foo.com and tried to configure 
sub.foo.com as a forward zone.

Forwarders are only used when the server needs to recurse.  The 
forwarders simply override the nameservers in the delegation.  Global 
forwarders override all NS records, zone-specific forwarders just 
override the NS records for that zone.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
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