Backup Mail Server Questions
toomas.aas at raad.tartu.ee
Mon Sep 27 01:03:03 PDT 2004
> From: Bill Moran <wmoran at potentialtech.com>
> First off, what does setting up backup DNS/mail gain the end user? Unless
> you have mirrors on radically different networks, of things like WWW and
> mail, backup DNS doesn't really accomplish anything. If the net
> connection goes down, you're offline anyway, so who cares if DNS still
This is only true if your DNS server is behind the same network
connection with your other services. We recently had a situation where
one of our mail sub-domains and one pretty important web application
were out of operation FOR A MONTH because the external contractor who
handles DNS for this sub-domain had "forgotten" their DNS server into
another network and it was disconnected. Until they sorted out the
mess, from the end-users POV things basically didn't work, even though
the mail and web servers themselves were fine.
So, secondary DNS *is important*. It is also very easy to set up (at
least with BIND).
Toomas Aas | toomas.aas at raad.tartu.ee | http://www.raad.tartu.ee/~toomas/
* I haven't lost my mind; I know exactly where I left it.
More information about the freebsd-questions