Bind Process Randomly Shuts Down

[vetch101]

Hi everyone,

I am running a Debian Etch ISPCP Omega RC6 with nothing else installed.

Over the last few weeks, the Bind process seems to randomly shutdown.
Sometimes there are logs about it, saying:-
Feb 16 07:30:14 vps named[9553]: shutting down: flushing changes
Feb 16 07:30:14 vps named[9553]: stopping command channel on 127.0.0.1#953
Feb 16 07:30:14 vps named[9553]: stopping command channel on ::1#953
Feb 16 07:30:14 vps named[9553]: no longer listening on ::#53
Feb 16 07:30:14 vps named[9553]: no longer listening on 127.0.0.1#53
Feb 16 07:30:14 vps named[9553]: no longer listening on IP.ADDRESS.OF.VPS#53
Feb 16 07:30:14 vps named[9553]: no longer listening on IP.ADDRESS.OF.VPS#53
Feb 16 07:30:14 vps named[9553]: exiting

Other times, the process has just disappeared without any messages.
Does anyone know why this might be happening, or what I can do to diagnose and eventually resolve it?
Alternatively, does anyone know why it might happen given that it tends to occur around the hour or the half-hour...

Many thanks,

Jx

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BTW - how can I add a secondary DNS server to the bind scripts...
Any changes I make seem to be overwritten when I restart the server.

Cheers,

Jx