In the context of adblock/domain-filtering I was trying to find a way to
log all the blocked queries only. We currently use a custom config
formatted like:
local=baddomain.com/
which returns NXDOMAIN. The issue is that if we enable "log-queries"
this is literally flooding the syslog. Beside this the messages appears
to be logged as info.
I'm aware that we can redirect the dnsmasq logs to a different file but
for the embedded devices we're discussing here (FreshTomato) you do want
the main dnsmasq to hit the default syslog facility. Also performing a
grep-in for NXDOMAIN onto a new file is surely a possibility but rather
intensive for this type of devices, especially if this needs to be
performed periodically.
So in a nutshell, would it be possible to:
A- use 'debug' (or allow custom level number) for the logs generated by
log-queries
B- allow to limit log-queries to certain results only e.g. log only if
the result is: NXDOMAIN/0.0.0.0/else-the-user-might-want
C - Allow the --log-facility to be split by loglevel or message type e.g.:
[0-6] > /var/log/messages
7 > /var/log/dnssmasq.debug
Thanks.
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