[MLB-WIRELESS] Melbwirelses DNS and Domain Names

[Tony Langdon]

> because MW is using private space, you cant have reverse 
> lookups if you use
> public DNS names - that's a penalty of using non public 
> space. You could
> have reverse lookups if you used REAL names on internal NS's, 
> or INTERNAL
> names on internal NS's, but I dont want to get into that 
> argument again
> today..

Well, you can make the internal NSs authoritive for reverse lookups, but
obviously, this will only work for people who resolve against the internal
NSs.  Still, sounds like a worthwhile compromise to me.
> 
> my take therefore is:
> 
> use REAL names on REAL DNS servers, mapped to the relevant private IP

Agreed here.
> 
> go without reverse mappings - this won't be a problem, except 
> for mail, and
> mail would be getting NATt'ed anyway for internet 
> connectivity, so its the
> public address that needs a valid reverse lookup, not the 
> private address -
> hence no problem.

Have reverse mappings run from internal NSs.  This will facilitate internal
mail and other facilities that wish to do a reverse lookup, provided they
resolve against the internal DNS servers.  Reverse lookups will not be
possible from Internet based DNS servers, because 10.in-addr.arpa is not
delegated out there.

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