Score:0

Why does installing rdnssd remove network-manager?

fr flag

Why does "sudo apt install rdnssd" remove 7 packages like network-manager etc.?

$ sudo apt install rdnssd

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libndp0 libpkcs11-helper1 libteamdctl0 mobile-broadband-provider-info
  openvpn pptp-linux
Use 'sudo apt autoremove' to remove them.
Suggested packages:
  ndisc6
The following packages will be REMOVED:
  network-manager network-manager-config-connectivity-ubuntu
  network-manager-gnome network-manager-openvpn network-manager-openvpn-gnome
  network-manager-pptp network-manager-pptp-gnome
The following NEW packages will be installed:
  rdnssd
0 upgraded, 1 newly installed, 7 to remove and 0 not upgraded.
Need to get 15,9 kB of archives.
After this operation, 10,7 MB disk space will be freed.
Do you want to continue? [Y/n] n
Abort.
Score:3
cn flag

Take a look at apt show rdnssd

Look for the Conflicts line:

Conflicts: network-manager

There's your answer: rdnssd and NetworkManager cannot exist on the same system simultaneously. They conflict.

FYI: Ubuntu Server and Ubuntu Core use systemd-networkd instead of NetworkManager. Unless you have bolted NM on, rdnssd should work well with those versions of Ubuntu.

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