[cobalt-users] Moving to new NOC

["Rodolfo J. Paiz" <rodolfo@xxxxxxxx>]

OK, everybody, I'm on countdown now. We move to our new digs (well, our 
first own digs) next Monday night. I've got my DNS timeout settings cranked 
down to 1 hour already, and will let them sit this way until Sunday when 
I'll change them to 1 minute.

The new NOC is now live and behind a firewall. I can put servers into it 
without a problem, so I'm going to use my notebook as a server for 24 hours 
while I move the big one and verify that everything works well.

Apache was not a problem.
DNS is not a problem.
The registries are, well, a problem but I'm working on them.

However, what I have not figured out is how to avoid mail from being 
interrupted. From what I see, I have to do the following:

* Install and configure sendmail on my notebook (mail2.domain.com) to 
receive mail for all my domains.

* Create an A and an MX record with a higher cost to my notebook for each 
domain.

So far, so cool. Now when the main server suddenly goes off-line, mail will 
be routed to mail2, the backup "server".

But... how do I tell mail2 not to do local delivery, but rather to relay 
only and to queue only so that it collects mail, then waits until it can 
actually get to the better mailserver (smtp.domain.com) and sends it all 
the queued mail when smtp.domain.com resumes operations?

I hope the question is clear; thanks, y'all.


--
Rodolfo J. Paiz
rodolfo@xxxxxxxx