[Trisquel-users] DNS leaks

[ersatzviolin]

I was setting up a VPN today and the VPN provider noted that "At this point,  
there is a known issue with DNS Leaks on distributions up to Ubuntu 16.04LTS  
(and its dependencies and parents)." More here:  
https://protonvpn.com/support/linux-vpn-setup/#optionA

Since Trisquel is based on Ubuntu, do DNS leaks potentially affect Trisquel  
as well?