bind question

[Colin Stefani]

Yup, I thought I should've been clearer about this...I had a feeling =
someone
was going to pound me on my explanation the minute I pushed the send =
button,
but alas it was too late to take it back...

Mathias, you're absolutely correct, in hindsight, I think it was =
misleading
the way I explained things. I meant to say it should look something =
like
this in the zone file:

@       SOA  domain.com. root.domain.com. (
                20000112101
                10800                   ; Refresh after 3 hours
                3600                    ; Retry after 1 hour
                604800                  ; Expire after 1 week
                86400 )                 ; Minimum TTL of 1 day
        NS   ns1.domain.com.
        NS   ns2.domain.com.
        A    192.168.1.1
        MX   5 mx.domain.com.
	  MX   10 mx2.domain.com.


You'll notice though, I mentioned that this A record should be placed =
in
section with the NS and MX records for the zone, I thought this was =
clear
enough, but obviously it didn't come through well enough.

As far as the 'notion of 'if there is no host specified...'', I was =
merely
being simplistic in trying to explain the "logic" from a client/user =
point
of view. I am NOT suggesting that 'named' (or any other resolver) is =
doing
any sort of actual determination as to what is being asked in terms of
determining whether a host or domain is being asked for, it was merely =
a way
to illustrate/explain what I thought Stephane' was trying to ask. =
Again, I
probably could have worded it better.

Also, I do realize that every name is just a name to DNS, regardless of =
it's
placement is the hierarchy and that is important to point out. From a =
web
browser/client point of view (which is what MOST questions revolve =
around in
this NG) then it is necessary to often think of these things in terms =
of a
simple host.domain.com situation, even though in the rest of the world =
of
DNS things aren't that simple all the time. Again, I was trying to be =
simple
and maybe shot myself in the foot for doing so.

Thanks for catching these things, I'd hate to try to help and only end =
up
messing someone up more.

regards,

colin

-----Original Message-----
From: Mathias K=F6rber [mailto:mathias at koerber.org]
Sent: Tuesday, November 28, 2000 7:57 AM
To: Colin Stefani; 'St=E9phane ';
comp-protocols-dns-bind at moderators.isc.org
Subject: RE: bind question


> Yes you can do this....
>=20
> place an open "A" record after the zone info (just after the serials)

You mean after the SOA record.. Don't try putting it into the SOA
record !

> portion of your zonefile so it looks like this:
>=20
>        A     192.168.1.1
>=20
> This would go where you declare the NS & MX hosts for the zone. The
> difference between this and a normal A record is that there is no =
host
> declaration in the first column. It's a way to say that 'if no host =
is
> specified in a query, then return this address'. So in a browser a =
user
> might put something like this:

Not quite right. This specifies an A record with the owner =
(left-hand-side)
of @ (which translates to the domainnameif you put it right after the =
SOA
record, before other hosts. If you put this record bwlos any other host
(or subdomain) declaration, the blank at the beginning of the line
translates
to the last defined LHS.

There is no notion of 'if there is no host specified in a query', as
hostnames
and domainnames are the same thing to DNS, it cannot distinguish =
whether the
third
level is a hostname, or another (sub-)domain or whether domain.com is =
just a
single
host in the .com domain (possible, see www.sg as an example).
In effect, are defining an address record for 'domain.net', whether =
that
name names
a host or domain (or like here both) is of no interest to DNS.


All that said, I'm not sure that this is what Stephane asked about.

STephane, would you care explaining a bit, and if possible giving the
real name of your domain and server, and what exactly you want to =
achieve?

thanks
Mathias

>=20
> http://domain.net=3D20
>=20
> and your DNS server would return 192.168.1.1
>=20
>=20
> -colin
>=20
> -----Original Message-----
> From: St=3DE9phane
> To: comp-protocols-dns-bind at moderators.isc.org
> Sent: 11/27/00 7:46 PM
> Subject: bind question
>=20
> Hello,
>=20
> I have a dns server called ns0.nameofserver.net
> is it possible to redirect the address "nameofserver.net" somewhere
> (without
> anything before the word "nameofserver") ? If yes how do you do that =
?
>=20
> Thanks for help.
>=20
> stef
>=20
>=20
>=20
>=20