How to understand log file?

[user9931]

I want to parse adguardhome log (data/querylog.json) with promtail and use it in loki and grafana. Its json file, thats easy to extract values... One thing that cant understand is what inside Answer key?

For example

{"T":"2022-06-08T13:17:19.347832573+03:00","QH":"www.google.com","QT":"A","QC":"IN","CP":"","Answer":"Va2BgAABAAYAAAAAA3d3dwZnb29nbGUDY29tAAABAAHADAABAAEAAADeAARA6aJowAwAAQABAAAA3gAEQOmiacAMAAEAAQAAAN4ABEDpomPADAABAAEAAADeAARA6aKTwAwAAQABAAAA3gAEQOmiZ8AMAAEAAQAAAN4ABEDpomo=","Result":{},"Upstream":"tls://dns.google:853","IP":"192.168.1.8","Elapsed":23886362}
{"T":"2022-06-

[ainar-g]

(Note that the query log format is not, and probably will not be, stable. In particular, see #2290 and the issues that are mentioned there.)

The Answer and OrigAnswer are both binary representations of the DNS answers received. If you want to process the query logs, including the answers, you'll need a language with a library capable of decoding the binary DNS message data.