Very Computer

by **Paolo Cesan** » Sat, 16 May 1998 04:00:00

How can I configure SCO sendmail not to use UNIX DNS but switch to NT
DNS?

by **Tony Earnsha** » Sun, 17 May 1998 04:00:00

> How can I configure SCO sendmail not to use UNIX DNS but switch to NT
> DNS?

A Unix mailserver will always use its server's own DNS. What you want to
do is to set up your Unix server as a DNS slave and your NT machine as
DNS master. Though sooner you than me! You can't have two authoritative
nameservers in one zone, you can at most have one master and one
secondary DNS server, or a stub.

Tony

--
Tony Earnshaw
Systems Manager
Electronic_State
Groeneweg 150
3981 CP Bunnik, The Netherlands
Telephone: +31 30 6563881
Fax: +31 30 6562472

URL: http://www.e-state.com

**** What's next for the axe after tobacco? ****

by **Bela Lubki** » Sun, 17 May 1998 04:00:00

> > How can I configure SCO sendmail not to use UNIX DNS but switch to NT
> > DNS?

> A Unix mailserver will always use its server's own DNS. What you want to
> do is to set up your Unix server as a DNS slave and your NT machine as
> DNS master. Though sooner you than me! You can't have two authoritative
> nameservers in one zone, you can at most have one master and one
> secondary DNS server, or a stub.

Nonsense! Any DNS-using command will use what /etc/resolv.conf tells it
to use. If the "nameserver" statement in resolv.conf points to the NT
box, NT DNS will be used (god help you).

Quote:>Bela<

by **Sean Emb** » Mon, 18 May 1998 04:00:00

Quote:>How can I configure SCO sendmail not to use UNIX DNS but switch to NT
>DNS?

In /etc/named.boot:
#---cut here---
directory /etc/named.d
cache .
forwarder <NT DNS IP ADDRESS>
slave
#---cut here---

will do that. The above lobotimizes SCO's name server and makes it
go to the NT box for all DNS.

What litigtamate reason you have for doing this is beyond me.
Perhaps the "solution" you are seeking isn't the best choice.

-------
Sean Embry
www.txdirect.net/~embrys
"God in Heaven help you. Microsoft won't, and we can't."

by **Simon Hobs** » Thu, 04 Jun 1998 04:00:00

> will do that. The above lobotimizes SCO's name server and makes it
> go to the NT box for all DNS.

> What litigtamate reason you have for doing this is beyond me.
> Perhaps the "solution" you are seeking isn't the best choice.

Well one possible reason (I havn't done this (yet !)) is that with an NT
server, it is possible to set up dynamic host addressing (DHCP) AND have
those same hosts have a valid DNS entry - if I read my book correctly.

So, it would be possible to have dynamic addressing and still be able to
use DNS to reference the network clients.

Just my 2p worth, Simon

by **Pat Pusho** » Sat, 06 Jun 1998 04:00:00

What you are referring to is completely possible if you use Cisco's
integrated DNS/DHCP product. If you are using canned Microsoft DNS I don't
believe it affords you this ability, although it does let you fall back to
WINS for IP translation.

> > will do that. The above lobotimizes SCO's name server and makes it
> > go to the NT box for all DNS.

> > What litigtamate reason you have for doing this is beyond me.
> > Perhaps the "solution" you are seeking isn't the best choice.

> Well one possible reason (I havn't done this (yet !)) is that with an NT
> server, it is possible to set up dynamic host addressing (DHCP) AND have
> those same hosts have a valid DNS entry - if I read my book correctly.

> So, it would be possible to have dynamic addressing and still be able to
> use DNS to reference the network clients.

> Just my 2p worth, Simon

--

(`. Patrick Pushor .)
VP Technical Development
prix.view multimedia group, inc.
www.prixview.com

by **John** » Sun, 07 Jun 1998 04:00:00

>> will do that. The above lobotimizes SCO's name server and makes it
>> go to the NT box for all DNS.

>> What litigtamate reason you have for doing this is beyond me.
>> Perhaps the "solution" you are seeking isn't the best choice.

>Well one possible reason (I havn't done this (yet !)) is that with an NT
>server, it is possible to set up dynamic host addressing (DHCP) AND have
>those same hosts have a valid DNS entry - if I read my book correctly.

>So, it would be possible to have dynamic addressing and still be able to
>use DNS to reference the network clients.

>Just my 2p worth, Simon

This is what we are doing on our network, so it certainly works. One thing
that should be kept in mind though is that NT's DNS adds an NT specific
record type for WINS lookups that can cause problems if at some stage the
domain needs to have a secondary DNS server that is not an NT system. Most
other systems will spit the dummy at the WINS and WINS-R records.

Hope that this sheds some light on the subject, John.

Very Computer

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