Multihomed Servers...

Bob Van Cleef vancleef at microunity.com
Mon Jul 10 18:25:41 UTC 2000



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.

Bob
><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>
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





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