If you're using a local e.g. container based, in any ways a LOCAL network ON YOUR device, you then should be aware of what the TLD is!
Using any other domain than ".local" will result in leaking YOUR DNS queries on the outer net, it may be the LAN or the internet, it doesn't matter.
Homework: There is a major difference between RFC 6761 and RFC 6762. Read!
It's emphasized to use ".local" as testing domain in any way, as all other are NOT restricted to be forwarded. #DNSLeaks #network #DevOps