On Feb 14, 2011, at 6:31 AM, Chris Thompson wrote:

> We are running BIND 9.7.2-P3, and update our zones with nsupdate calls
> that look like this:
> 
> nsupdate -v -k keys/update-key <[input] >/dev/null 2>[errors]
> 
> This is run from a Solaris 10_x86 non-global "zone" (container).
> 
> On a couple of occasions it has generated the error
> 
> dns_dispatch_getudp (v4): permission denied
> 
> This seems to strike at random, and goes away on retrying the same
> nsupdate call. What's really strange here is that nsupdate is being
> told to use TCP (the -v option), so why is it messing around with UDP?
> 
> Has anyone else seen this?

I haven't seen it specifically, but:

- nsupdate might be sending a query (over UDP) to fill in missing info, such as 
the zone or server to update.

- Your Solaris container might be the problem. I've heard of problems running 
named in a container, typically performance problems but this type of behavior 
might explain a performance issue.

Regards,
Chris Buxton
BlueCat Networks
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