Problem upgrading 9.18 to 9.20: dnstap doesnt work

[Fred Morris]

Apologies in advance, I realize you're trying to run on BSD, and I only 
run / test on Linux so it may not work. -- FWM

On Fri, 26 Jun 2026, Fred Morris wrote:
> 
> How's your python? Download
>
>  https://github.com/m3047/shodohflo/blob/master/examples/dnstap2json.py
>
> and see if you can make that go. Well really, download the entire repo. The 
> framestreams implementation is here:
>
>  https://github.com/m3047/shodohflo/blob/master/shodohflo/fstrm.py
>
> I make no apologies for framestreams, I think think they could have done 
> better borrowing from how DNS does TCP but that's just my opinion. In any 
> case, it requires a "notary sojack" (handshake) from the "server"... yes your 
> client is the server. Is whatever you're using as a sink sending the 
> handshake?
>
> (There is a complete pure python implementation of framestreams / protobuf in 
> there.)
>
> --
>
> Fred Morris, internet plumber
>
> On Sat, 27 Jun 2026, Peter 'PMc' Much wrote:
>>
>>  A while back I upgraded an internal server from 9.18 to 9.20.
>>  Everything works fine there.
>>
>>  Now I upgraded a public server (rented KVM). Same config, same
>>  infrastructure. It probably works, but there is no dnstap output, so I
>>  am blind.
>>
>>  I put a hexdump on the socket like so (before starting named):
>>
>>  root at wand:/tmp # /usr/bin/stdbuf -o 0 /usr/local/bin/fstrm_capture \
>>    -t protobuf:dnstap.Dnstap -u /var/named//var/run/dnstap.sock -w - | hd
>>  fstrm_capture: opening Unix socket path /var/named//var/run/dnstap.sock
>>  fstrm_capture: opened output file -
>>  00000000  00 00 00 00 00 00 00 22  00 00 00 02 00 00 00 01
>>  |......."........|
>>  00000010  00 00 00 16 70 72 6f 74  6f 62 75 66 3a 64 6e 73
>>  |....protobuf:dns|
>>
>>  And that is all that appears.
>>  [...]
>
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