Stubby & dnsmasq
I have configured Stubby on OpenWRT 15.05.1 but any queries made aren't showing up in the logs via the NextDNS control panel.
However if I configure the dnsmasq.conf file to include the settings listed on the Setup page then I can see the queries on the log page.
Should I have both Stubby and Dnsmasq.conf configured?
Follow this step by step: https://github.com/openwrt/packages/blob/master/net/stubby/files/README.md
Do not proceed any further once you get to "Enabling DNSSEC", it seems NextDNS does not support DNS between you and it. However, NextDNS itself uses DNSSEC for upstream.