Upgrade from Raspbian to Bullseye and DNS won't start

[deHakkelaar]

@jfb

[✗] udp:127.0.0.1:53 is in use by connmand (https://docs.pi-hole.net/main/prerequisites/#ports)

Disable the connman DNS proxy/stub bit so it wont conflict with the pihole-FTL daemon over port 53:

FTL Version / something blocking Port 53 - again

You dont have to disable connmand entirely. Little background: $ apt show connman [..] Description: Intel Connection Manager daemon The Linux Connection Manager project provides a daemon for managing Internet connections within embedded devices running the Linux operating system. The Connection Manager is designed to be slim and to use as few resources as possible. It is fully modular system that can be extended through plug-ins. The plug-in approach allows for easy adaption and modific…