Bug#811242: libc-ares-dev: Please provide way to talk to DNS servers on ports != 53

[Gregor Jasny]

Hello,

it seems that in recent versions ares_set_servers is also accepting 
custom ports for the configured list of servers:

https://manpages.debian.org/testing/libc-ares-dev/ares_set_servers.3.en.html

Does that solve your issue?

Thanks,
Gregor