Reverse lookup NS or Sendmail

[Ted Stephens]

In article <9l9pmj$277 at pub3.rc.vix.com>, william+dns at hq.newdream.net 
says...
> 
> Barry Margolin wrote:
> > Ted Stephens  <tls at columbus.rr.com> wrote:
> > >I have a name server, and a sendmail server on the same box. Should I
> > >reverse map the name server or the sendmail server? Or should I add
> > >additional ip then map both of them?
>  
> > What do you mean?  DNS is about names and addresses, not roles.  If it's
> > one box, it only needs one name.
>  
> > But if you want to give it two names (e.g. ns.company.com and
> > smtp.company.com), it doesn't matter which one you put in the reverse DNS.
> > Nothing typically performs reverse DNS on nameserver names, but mailserver
> > names get put in "Received:" headers, so I recommend making the reverse DNS
> > point to the mailserver name.
> 
> yes but some registries insist that a nameserver resolve in reverse.  in
> general, we usually put the nameserver on a different IP than the machine's
> main IP anyway; I'd suggest using a separate IP for both mail and DNS (from
> the main machine IP) if possible, or at least a separate one for DNS.  Then
> set the nameserver to listen just on the IP you chose for it and on
> 127.0.0.1.
> 
> w
> 
> 
Thanks for the reply. I'll try 2 ip scheme.
-- 
Ted Stephens CNE, A+, CCA