Find reverse lookup servers

[Jon Booth]

Thanks Joseph

Jon
On Wed, 14 Nov 2001, Joseph S D Yao wrote:

> On Thu, Nov 15, 2001 at 11:25:31AM +1100, Jon Booth wrote:
> > How do I work out what the primary and secondary servers are for an
> > in-adddr.arpa domain?
> 
> There is nothing special about in-addr.arpa domains.  They work exactly
> like any other domains.  You find out what the peer name servers are by
> 
> 	dig ns NNN.NNN.NNN.in-addr.arpa
> 	nslookup -type=ns NNN.NNN.NNN.in-addr.arpa
> 
> depending on which tool you're more comfortable with and what your
> further needs are.
> 
> As far as "primary" and "secondary" [now called "master" and "slave"],
> there is no useful distinction as far as the resolver is concerned.
> That is why I stress the term peer server.  When you query for name
> servers, you get ALL of the peer servers.  There is no indication
> whether any of them are masters or any of them are slaves.
> 
> In fact, it is possible that none are masters, and it is also possible
> that none are slaves.
> 
> HOWEVER, having said that, if you want to find the name of the primary
> master server, it should be in the SOA record for the domain:
> 
> 	dig soa NNN.NNN.NNN.in-addr.arpa
> 	nslookup -type=soa NNN.NNN.NNN.in-addr.arpa
> 
> There is no guarantee, though, because not everyone does this right.
> 
> -- 
> Joe Yao				jsdy at center.osis.gov - Joseph S. D. Yao
> OSIS Center Systems Support					EMT-B
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>