To:
dnsop@cafax.se
From:
"D. J. Bernstein" <djb@cr.yp.to>
Date:
31 May 2001 17:25:18 -0000
Content-Disposition:
inline
Sender:
owner-dnsop@cafax.se
Subject:
Re: Should a nameserver know about itself?
Shane Kerr writes:
> one of nominum.com's name servers is ns-ext.vix.com
.com doesn't allow two server names to point to the same IP address.
Section 3.4.2 of draft-ietf-provreg-grrp-reqs-02.txt corrects this flaw.
> every time they buy a smaller ISP they're going to have to worry
> about not only integrating the different infrastructure into their
> own, but also now changing a set of records in one or more RIR
> databases to use their preferred name servers.
Why do you think this is a disadvantage for in-zone server names? Here's
the situation:
Current system In-zone server names
------------------------ -----------------------------
Old delegation 1.i-a.arpa NS a.ns.x.net 1.i-a.arpa NS a.ns.1.i-a.arpa
a.ns.1.i-a.arpa A 4.3.2.1
New delegation 1.i-a.arpa NS a.ns.y.net 1.i-a.arpa NS a.ns.1.i-a.arpa
a.ns.1.i-a.arpa A 9.8.7.6
In both systems, the delegation has to be changed.
---Dan