Maximum number of concurrent DNS queries reached (max: 150)

[ColinTaylor]

By default NXDOMAIN lookups are not cached. To avoid NXDOMAIN lookups from being unnecesarily forwarded, I added the following to /jffs/scripts/dnsmasq.postconf

pc_append "neg-ttl=3600" $CONFIG
pc_delete "no-negcache" $CONFIG

Interesting stuff, but not applicable in this particular case. The only NXDOMAIN reply was in response to a reverse lookup on a local address (192.168.10.221). Being a local address it was answered directly by dnsmasq and would not have been forwarded upstream.

 

[EmeraldDeer]

Interesting stuff, but not applicable in this particular case. The only NXDOMAIN reply was in response to a reverse lookup on a local address (192.168.10.221). Being a local address it was answered directly by dnsmasq and would not have been forwarded upstream.

I would have expected the second lookup of "_bittorrent-tracker._tcp.17.volia.net" to be cached as opposed to forwarded