Re: BIND for offline email UUCP gateway

Jim Dennis (jimd@starshine.org)
09 Oct 1998 08:44:51 -0700


Ow W K Danny <owwkd@cybernix.com.sg> writes:

> On Tue, 2 Jun 1998, Azfar Kazmi wrote:
>
>> I am willing to put an offline email uucp gateway on my network. I will get
>> an uucp account from my ISP and that ISP will also provide me with DNS
>> facilities [for gateway only.] In these conditions, with linux 5.x and
>> sendmail 8.8.x, do I *really* need to also install BIND?
>>
> UUCP (aka "unix-to-unix copy program") authenticate each other by machine
> name. Read "Sendamail+UUCP-mini-HOWTO" for more details.

> Danny

However, that machine name doesn't *have* to be
served by DNS/BIND. You can easily have a machine name
set in your (Taylor) UUCP configuration files that has
*nothing* to do with any DNS/BIND name that you run.
Indeed it is possible to run a site with no DNS
(just /etc/hosts files), and still use sendmail to
get all the mail on the LAN to your UUCP hub
(I use a variant of the nullclient.mc file that looks
like this:

divert(0)dnl
VERSIONID(`@(#)clientproto.mc 8.7 (Berkeley) 3/23/96')

OSTYPE(linux)
FEATURE(nullclient, `[192.168.64.1]')

... note the use of a "bracketed" IP address rather than
a host name (otherwise sendmail want's to resolve an MX
record).

On my UUCP gateway I simply declare my "SmartHost"
with a line like:

define(`SMART_HOST', `uucp-dom:XXX')dnl

... (sanitized, of course).

--
Jim Dennis  (800) 938-4078		consulting@starshine.org
Proprietor, Starshine Technical Services:  http://www.starshine.org
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