Is it Possible to Log nxdomain Responses?

Stephane Bortzmeyer bortzmeyer at
Wed Nov 17 14:23:30 UTC 2010

On Wed, Nov 17, 2010 at 07:48:55AM -0600,
 Martin McCormick <martin at> wrote 
 a message of 22 lines which said:

> It would be nice to log each nxdomain for a while so we can verify
> that the new deligated zone we are about to install fixed the
> problem.

May be with dnscap <>:

dnscap -e x -g -w nxdomain-%s-%u.pcap
       This will keep NXDOMAIN responses

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