BIND 9.11.4 dnstap not capturing updates
kevin.darcy at fcagroup.com
Fri Aug 3 16:56:16 UTC 2018
I'm no expert in DNSTAP, but I see this in the output:
along with proper reinterpretations of the sections:
ZONE: 1, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0
How is that "not record[ing} the DNS update"? Are you looking for something
prettier? More detailed?
On Fri, Aug 3, 2018 at 7:36 AM, Tony Finch <dot at dotat.at> wrote:
> greg.rabil at bt.com <greg.rabil at bt.com> wrote:
> > I use nsupdate to send a DDNS update to my zone, which is added
> > successfully. However, the dnstap.output does not record the DNS
> > update.
> I think (arguably) this is a limitation of the dnstap specification. It's
> defined in a Protocol Buffers declaration file (see the link below) and it
> only specifies message types for normal queries and responses. The types
> correspond roughly to tap points in the code - it isn't as low-level as
> you might expect, if you are imagining something that hooks into the
> network IO layer.
> If you want to record other kinds of messages (UPDATE, NOTIFY, etc.) it
> would probably be best to extend the dnstap `Type` enum, and add
> corresponding dns_dt_send() calls to BIND's code. But you should check
> with Robert Edmonds first :-)
> f.anthony.n.finch <dot at dotat.at> http://dotat.at/
> Sole, Lundy, Fastnet, Irish Sea: Variable 3 or 4. Smooth or slight. Fog
> patches. Moderate, occasionally very poor, becoming good for a time.
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