[TriLUG] DNS Question

[Mark Fowle]

Tanner -
Thanks.
Being I'm the one with the Trilug account I got stuck asking the
question - (Thank's for being gentle) - my suggestion was to have a
dual-zone DNS - but I was told that was "stupid" -- What they want is a
DNS environment that wont respond to queries about machines inside their
lan - I thought a dual-zone would be want they would want - so I asked
the question the way they wanted :-)  (I'm sure there are other ways of
doing this - I opted for the one I've set up before)

Thanks,
Mark


On Wed, 2003-06-18 at 16:34, Tanner Lovelace wrote:
> On Wed, 2003-06-18 at 16:26, Mark Fowle wrote:
> > Here's my thought - If I register a domain at verisign or registry.com,
> > point to a DNS server (include registering mail and lets say the web
> > IP's), can the dns server at my domain be a caching only server or does
> > it have to be able to resolve some requests from the internet?
> > 
> > I know its probably a dumb question ---
> > 
> > Thanks,
> > Mark
> 
> You're right. It's a pretty dumb question. :-)
> Let's see why it can *not* be a caching only server.
> 
> When you specify a server for your domain, what you're really saying
> is that if you want to get authoritative information for this domain,
> go here.  If you setup a caching server at that location, then
> what happens is that requests for that domain name will go to that
> server, which being a caching server will go out, look for where
> it should go and find out it should go back to itself?!?  Obviously
> that won't work.
> 
> Now, what you can do is this.  You can make that server a 
> "secondary" name server.  You still have to have a primary server,
> but you don't have to specify it to Verisign et al.  The secondary
> server must still know where to find the primary server.  What
> will happen in this case is that requests will come into the 
> secondary server and if it doesn't have the info it will go to the
> primary server, get the information, then cache that information
> for the appropriate time.
> 
> Just out of curiosity, why would you want that server to be 
> caching only?
> 
> Cheers,
> Tanner
-- 
Mark Fowle <mark at thefowles.com>