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mr-karan / doggo

:dog: Command-line DNS Client for Humans. Written in Golang
https://doggo.mrkaran.dev/
GNU General Public License v3.0
3.07k stars 101 forks source link

debug logs DOH response headers #27

Closed ianbashford closed 3 years ago

ianbashford commented 3 years ago

I was interested in the response headers sent from DOH resolvers, and made a simple mod. I thought I'd share in case this might be of interest. e.g. doggo --debug --time @https://9.9.9.9/dns-query example.com

time="2021-08-10T22:03:16+01:00" level=debug msg="initiating DOH resolver"
time="2021-08-10T22:03:16+01:00" level=debug msg="Starting doggo 🐶"
time="2021-08-10T22:03:16+01:00" level=debug msg="Attempting to resolve" domain=example.com. nameserver="https://9.9.9.9/dns-query" ndots=0
time="2021-08-10T22:03:16+01:00" level=debug msg="DOH response header" Content-Type="[application/dns-message]"
time="2021-08-10T22:03:16+01:00" level=debug msg="DOH response header" Cache-Control="[max-age=43002]"
time="2021-08-10T22:03:16+01:00" level=debug msg="DOH response header" Content-Length="[45]"
time="2021-08-10T22:03:16+01:00" level=debug msg="DOH response header" Server="[h2o/dnsdist]"
time="2021-08-10T22:03:16+01:00" level=debug msg="DOH response header" Date="[Tue, 10 Aug 2021 21:03:16 GMT]"
NAME            TYPE    CLASS   TTL     ADDRESS         NAMESERVER                  TIME TAKEN 
example.com.    A       IN      43002s  93.184.216.34   https://9.9.9.9/dns-query   112ms
mr-karan commented 3 years ago

Thanks @ianbashford This will be helpful :+1: