Just a quick question - I am looking to deploy a DNS AdBlocker like AdGuard Home or PiHole but I'm having some struggles as port 53 TCP and UDP are in use.
As such the container fails to deploy and, I don't want to map 53 to another port, as otherwise the clients would not be able to connect.
From netstat I can see that the port for both UDP and TCP is allocated to systemd-resolved.
I'm not hosting any other DNS-serving container on Docker and, on OMV itself, I only have enabled SMB/CIFS, SSH and RSync Server.
Could anyone help me in understanding why that port is in use and how I could free it so to map it to the container?