Running Debian Stretch on a Raspberry Pi configured to use DNS over HTTPS on my home network for a final project at school. Not very experienced with Linux, but managed to get it installed. When I checked to see if it was running properly I got an error message after entering “sudo Cloudflared proxy-dns”
*Failed to start the listeners error="failed to create a UDP listener: listen udp 127.0.0.1:53: bind: address already in use"
HI Sandro thanks for helping… I’m sorry, I don’t know which application it is referring to. All I see is “Failed to start the listeners”… and that the address for “127.0.0.1 port 53 udp” is already in use, but I don’t know what is using it or how to find out what is using it.
Is it just this address and port or is it all of the listeners?
How do I determine what is using this address? Is it “bind” or the line above it that has “dns://localhost:53” the address that’s already in use?
Would I use the “top” command to kill a process or application or is it in a config file?
Do I have to make any adjustments to ufw or a config file?
