[Pdns-users] Efficient query logging

Brian Candler b.candler at pobox.com
Wed Apr 4 13:52:24 UTC 2018

On 03/04/2018 22:39, Brian Candler wrote:
> Aha, "powerdns recursor protobuf export" was the search term I needed, 
> thanks!
> https://doc.powerdns.com/recursor/lua-config/protobuf.html
One question.  Protobuf messages are in general not self-delimiting[^1], 
but I couldn't find any description of how PDNS delimits protobuf 
messages.  Are they wrapped?  Or does tag 1 mark the start of each 
message (which I note is the only required tag) [^2]?

Perhaps someone can share some code which is capable of receiving these 
messages, e.g. as referred to in




[^2] This would depend on the generator outputting tags in increasing 
tag sequence, which is a "should" requirement for generators, but 
parsers are not supposed to depend on it.


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