I've lost the whole day trying to understand the pretty complicated logic on how to have control of my linux (fedora) DNS with the many internet/connections nad

I've lost the whole day trying to understand the pretty complicated logic on how to have control of my linux (fedora) DNS with the many internet/connections nad wireguard's profile, and once again I went back to https://www.ctrl.blog/entry/resolvconf-tutorial.html https://www.ctrl.blog/entry/resolvconf-tutorial.html (disable everything and just handle /etc/resolv.conf the 'old' way, and now finally I have no more leaks https://dnsleaktest.com https://dnsleaktest.com as for wireguard, a pretty brutal settings in all wireguard profiles: PostUp = echo "nameserver <DNS IP in wireguard>" > /etc/resolv.conf PostDown = echo "nameserver 127.0.0.1" > /etc/resolv.conf and even a dns=none in /etc/NetworkManager/NetworkManager.conf p.s. I am aware of the great discussion in https://news.ycombinator.com/item?id=19435631 https://news.ycombinator.com/item?id=19435631 especially usr1106 comment