Re: Performance Issues - PTR Records

[sthaug () nethelp no]

> > The practice of filling out the reverse zone with fake PTR record
> > started before there was wide spread support for UPDATE/DNS.  There
> > isn't any need for this to be done anymore.  Machines are capable
> > of adding records for themselves.
>
> How do I setup this for DHCPv6-PD?  Say, I delegate 2001:db8:42::/48 to
> the end user.  Should I delegate reverse DNS as well?  If so, to whom?
>
> Or is it the CPEs responibility to dynamically add records for whatever
> addresses it sees on the internal LAN(s)?  Are there CPEs capable of
> doing this?
>
> Or will the end systems themselves do the update against my DNS server?
> If so, how do I authenticate that?

With my ISP hat on, I find the idea of customer CPEs updating their
own PTR records to be completely unacceptable. So I guess I'll either
live without the reverse DNS, or use a name server that can synthesize
answers on the fly.

Steinar Haug, Nethelp consulting, sthaug () nethelp no