Re: [cobalt-users] RAQ2 DNS problem - Sendmail?

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

At 06:55 AM 1/26/00  Debbie Doerrlamm wrote:
> I think I'm having the same problem.. I've done so many test over the past
> few days, I;m totally confused.. need to take a break and test again.. but
> tell me please.. where do I look to see what version of sendmail I am using?

Here's what I just did to see what version of sendmail you're using for 
your beautytech.com domain:

First, I ran nslookup:

> [admin admin]$ nslookup
> Default Server:  ns1.ns-one.net
> Address:  216.98.128.70
> >

Then I set nslookup to return MX records:

> > set type=MX
> >

Then I asked for the MX record for your domain, beautytech.com

> > beautytech.com
> Server:  ns1.ns-one.net
> Address:  216.98.128.70
>
> beautytech.com  preference = 100, mail exchanger = beautytech.com
> beautytech.com  nameserver = ns.clever.net
> beautytech.com  nameserver = ns2.clever.net
> beautytech.com  internet address = 216.205.40.210
> ns.clever.net   internet address = 209.196.54.4
> ns2.clever.net  internet address = 209.235.54.4
> >

Note that I got a reply that says your mail server is "beautytech.com" and 
that it's preference is set at 100.  I don't know why you're using 
something as high as 100, but since you've only got one, it doesn't really 
matter.  I also found out the IP# for beautytech.com, the nameservers which 
you use, and their addresses as well.  None of this information matters.  I 
just went ahead and exited nslookup.

> > exit
> [admin admin]$

So I went ahead and ran telnet, telling it to telnet into your mailserver, 
but to telnet in on port 25.  That way, your system's mailserver would 
think I was a mailserver, and answer as if I were a mailserver...

> [admin admin]$ telnet beautytech.com 25
> Trying 216.205.40.210...
> Connected to beautytech.com.
> Escape character is '^]'.

Which it did.  Here's the reply it gave me.

> 220 www18.clever.net ESMTP Sendmail 8.9.0/8.9.0; Wed, 26 Jan 2000 12:18:26 
> -0500 (EST)

Which tells me a few things:  First, it tells me your mailserver for this 
box is really NOT called beautytech.com; it's really called 
www18.clever.net.  Second it tells me you're running version 8.9.0 of 
sendmail.  And finally, it lets me know you're in the eastern time zone of 
the U.S., or in otherwords GMT time minus 5 hours.  BTW, the reason we use 
-0500 instead of -05 is because there are two timezones in the world that 
are NOT on hour breaks, but are on half-hour breaks (I know this because my 
kids happen to live in one of them <smile>).

That's how you find out the version of sendmail someone's running <smile>.

> quit
> [admin admin] $

So then I typed quit, which returned me to my linux prompt.  Then I logged 
out and finished this post to the list.

Jeff
--
Jeff Lasman, nobaloney.net
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