Best Practices for Authoritative Servers

Mark Andrews Mark_Andrews at isc.org
Thu Jan 31 23:31:07 UTC 2008


> A server is authoritative for a zone if it has a complete, non-cached  
> copy of the zone. In other words, if it is master or slave for that  
> zone, and if the zone loads correctly, then it is authoritative. This  
> is indicated by the 'aa' flag in a response from the server.
> 
> It does not matter whether any NS record in the zone refers to the  
> server by name. In fact, a name server doesn't necessarily know its  
> own name(s), nor does it normally need to do so. I don't believe the  
> BIND name server makes any attempt to figure out a name for its host  
> machine, for example.

	Only to answer hostname.bind/TXT/CH queries which is a
	diagnostic query.

	Mark
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org



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