Multihomed Servers...

[Bob Van Cleef]

On Mon, 10 Jul 2000, Kevin Darcy wrote:

> How do the PTR records look?
>

named.conf:
zone "192.216.192.in-addr.arpa" {
	type master;
	file "reverse/192.216.192";
};

reverse/192.216.192:
53	IN PTR	atlas.microunity.com.

reverse/192.86.7:
53	IN PTR	atlas.microunity.com.

reverse/192.86.8:
53	IN PTR	atlas.microunity.com.

reverse/192.86.9:
53	IN PTR	atlas.microunity.com.

> 
> Bob Van Cleef wrote:
> 
> > Sigh...
> >
> > I have a couple of systems that have multiple interfaces... which I setup
> > like the wormhole.movie.edu examples in chapter four of the DNS & Bind
> > books.  For example:
> >
> > atlas           A       192.216.192.53
> > atlas           A       192.86.7.53
> > atlas           A       192.86.8.53
> > atlas           A       192.86.9.53
> >
> > atlas-192       A       192.216.192.53
> > atlas-7         A       192.86.7.53
> > atlas-8         A       192.86.8.53
> > atlas-9         A       192.86.9.53
> >
> > bash# grep atlas /etc/hosts
> > 192.86.9.53     atlas atlas.microunity.com atlas-9 atlas-9.microunity.com
> > 192.216.192.53  atlas atlas.microunity.com atlas-192 atlas-192.microunity.com
> > 192.86.7.53     atlas atlas.microunity.com atlas-7 atlas-7.microunity.com
> > 192.86.8.53     atlas atlas.microunity.com atlas-8 atlas-8.microunity.com
> >
> > I am repeatedly running into problems with software that seems to assume
> > that this is illegal.  Especially things that like to do reverse lookups.
> >
> > Does this practice break some new defacto standards that are evolving,
> > or are those tools not doing their authentication correctly?  I've run
> > into problems with this on things as diverse as NFS on Solaris systems and
> > CFENGINE.
> 
> 
> 
> - Kevin
> 
> 
> 
> 

><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>
Bob Van Cleef, Member of Technical Staff         (408) 734-8100
MicroUnity Systems Engineering, Inc.         FAX (408) 734-8136
475 Potrero Ave., Sunnyvale, CA 94086   vancleef at microunity.com