Comment 43 for bug 1211110

To stop my OpenVPN DNS leak I ended up doing the following

Disabled dnsmasq as described above
Installed unbound so /etc/resolv.conf was not using my routers DNS intermittently when connected to the VPN
Added my VPN's DNS IP's as well as adding the line block-outside-dns to /etc/resolv.conf
Using this as a killswitch https://www.privateinternetaccess.com/forum/index.php?p=/discussion/1151/pia-iptables-manager#Item_4