[asterisk-users] Why asterisk down when inet server down?

[Hans Witvliet]

On Fri, 2010-06-18 at 13:59 -0400, sean darcy wrote:

> 
> If the internet server is down, there can't be a valid DNS server 
> accessible to Asterisk. The asterisk server is a caching name server, 
> but obviously won't be able to resolve addresses not in its cache.
> 
> Asterisk clearly doesn't need to resolve addresses to connect calls 
> internally or over the T1. Is there any way to turn off its requirement 
> for a DNS server? Or at least not fail catastrophically?

Even when your connection to Internet is lost, doesn't mean there can
not be a valid dns server. I would recommend to run bind on your
asterisk machine to resolve all addresses that your asterisk server
and/or phones need. If that machine goes down, your phones can not call
anyway ;-)

Same for doing DHCP for handing out addresses to your phones...