No authority for serving glue records.

[Mark_Andrews at isc.org]

> 
> Hi,
> I have a qustion about bind behavior when it encounters glue records
> outside of authority of the currently queried server.
> Let's say I am trying to resolve time.com
> so at some point I am talking to one of the authoritative servers
> for .com, as I follow  the delegation from root servers:
> 
> $ dig time.com @H.GTLD-SERVERS.NET
> 
> ;; AUTHORITY SECTION:
> time.com.               172800  IN      NS      NS.PATHFINDER.com.
> time.com.               172800  IN      NS      NS2.PATHFINDER.com.
> time.com.               172800  IN      NS      NS3.TIMEINC.NET.
> time.com.               172800  IN      NS      NS4.TIMEINC.NET.
> 
> ;; ADDITIONAL SECTION:
> NS.PATHFINDER.com.      172800  IN      A       209.251.208.19
> NS2.PATHFINDER.com.     172800  IN      A       209.251.208.20
> NS3.TIMEINC.NET.        172800  IN      A       205.188.238.92
> NS4.TIMEINC.NET.        172800  IN      A       205.188.238.156
> 
> 
> so the server gives me four glue records, but it has no authority for
> two of them at they are outside .com.
> 
> What the next step is going to be ?
> Putting the original query on hold and try to resolve names from .net,
> or it will go ahead and try to use one of the two "good ones" possibly
> ignoring the other two ? What if the servers in .com are not reachable,
> will ever try to use the .net servers ?
> 
> 
> Pawel
> -- 

	It will use the com servers and lookup the addresses for the
	net servers.
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org