How to disable systemd-resolved in Ubuntu

README.md

How to disable systemd-resolved in Ubuntu

Stages

• Disable and stop the systemd-resolved service:

    sudo systemctl disable systemd-resolved.service
    sudo systemctl stop systemd-resolved
  

• Then put the following line in the [main] section of your /etc/NetworkManager/NetworkManager.conf:

    dns=default
  

• Delete the symlink /etc/resolv.conf

    rm /etc/resolv.conf
  

• Restart network-manager

    sudo service network-manager restart
  

Sources

• https://askubuntu.com/questions/907246/how-to-disable-systemd-resolved-in-ubuntu

This is wrong, instead of dns=none it should be dns=default

This is wrong, instead of dns=none it should be dns=default

Yes, I don't know what happened at the time of writing, but currently I have dns=default, thanks for warning!

what is dns=default tho? I use 1.1.1.1 on my resolv.conf and want to keep using that

@tweakunwanted you can see the documentation of NetworkManager. If you don't want /etc/resolv.conf to be changed, assign dns=none.

Thanks for fixing my VPN wish I'd find this 2 hours before.

Any idea how to do this on centos8 - even systemctl mask systemd-resolved doesn't fix it, none of the above does either and /etc/resolv.conf isn't a symlink on centos8, dns=none is the default

This just saved my butt. For some reason resolved just decided to stop working. After two hours of pain killing resolved did the trick. Yet one more reason why I hate systemd. Just want it do die a painful death.

Just a nit: I find it odd that you use service to restart NetworkManager and not systemctl since the former is just a compatibility wrapper around the latter.

this has started causing

sudo service network-manager restart
sudo: unable to resolve host ubuntu-18-04: Resource temporarily unavailable

Worked like a charm on Kubuntu 20.04.1 LTS.

Just a note in case people need to undo these instructions:

The symlink for /etc/resolv.conf points to ../run/systemd/resolve/stub-resolv.conf

/etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

This was helpful, I was trying to configure vhosts using network manager and the missing piece was deleting the symlink from systemd. Thanks!