[TriLUG] DNS Question

Tanner Lovelace lovelace at wayfarer.org
Wed Jun 18 16:34:08 EDT 2003


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
-- 
Tanner Lovelace | lovelace(at)wayfarer.org | http://wtl.wayfarer.org/
--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--
GPG Fingerprint = A66C 8660 924F 5F8C 71DA  BDD0 CE09 4F8E DE76 39D4
GPG Key can be found at http://wtl.wayfarer.org/lovelace.gpg.asc
--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--
          Si hoc legere scis, nimium eruditionis habes.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part
URL: <http://www.trilug.org/pipermail/trilug/attachments/20030618/98904153/attachment.pgp>


More information about the TriLUG mailing list