[asterisk-users] asterisk 1.2.12 lost phone registrations today... why?

[Bob Chiodini]

On Thu, 2006-10-12 at 10:20 -0400, Jay R. Ashworth wrote:
> On Wed, Oct 11, 2006 at 12:07:50PM -0400, Bob Chiodini wrote:
> > We had a power failure that took down the internet connection and local
> > DNS server.  My local Cisco phones could not register (IP addresses are
> > hard-coded) and, because of the DNS failure I could not register with my
> > SIP provider.  I have not had a chance to sort through the logs, but I
> > had to reset the Asterisk box, after the DNS server was restored.  In my
> > case, inbound and outbound PSTN calls (via a TDM11b) were failing.  The
> > local analog phone rang (on an inbound PSTN call), but did not recognize
> > the analog answering machine taking the line off-hook.  Once the caller
> > hung up, the local (analog) phones would ring again, but no call was
> > present, as reported by my wife.
> > 
> > BTW:  The Asterisk box is on UPS and did not go down and I do not have
> > voicemail enabled for my local extensions.
> 
> As a general rule, if you aren't already, you should have your Linux
> box running a local DNS server, to which everything in your net should
> be pointed, and that server *should have an authoritative zone for your
> local RFC 1918 network number, in both directions*.  If it does not, then
> those reverse lookups that many programs generate, in trying to log
> names for connections instead of numbers, will go to the outside world
> before they bounce...
> 
> or they'll time out when your uplink is dead.
> 
> This may be (part of) your problem.
> 
> Cheers,
> -- jra

Jay,

I agree.  My caching nameserver runs on another Linux box in the
network, that failed to reboot after yesterdays outage, due to my error.
We had another power failure this morning :-(  Florida Plunder and Loot
strikes again!  No adverse affects, this time.  

Heading to Wally World after work for a couple of UPS units.

Bob...