Temporary failure in name resolution on Ubuntu server 22.04.3 LTS
Bo Berglund
bo.berglund at gmail.com
Sun Nov 26 19:52:47 UTC 2023
On Sun, 26 Nov 2023 15:18:42 +0100, Bo Berglund <bo.berglund at gmail.com> wrote:
>2) The references to NetworkManager in most of the web hits I have read
>concerning the resolution to this problem do not work. For instance:
>- nmcli does not exist
> $ nmcli
> Command 'nmcli' not found, but can be installed with:
> sudo snap install network-manager # version 1.2.2-31, or
> sudo apt install network-manager # version 1.36.6-0ubuntu2
> See 'snap info network-manager' for additional versions.
So I have now checked if Networkmanager is actually installed on the server
having the networking issues.
This check is done using apt on that server:
$ apt policy network-manager
network-manager:
Installed: (none)
Candidate: 1.36.6-0ubuntu2
Version table:
1.36.6-0ubuntu2 500
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64
Packages
1.36.4-2ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
It seems like network-manager is *not* installed, so something else is running
the network interfaces (and failing as described in this thread)...
How come this has not been corrected during the do-release-upgrade I have done a
number of times on this server ( 16 -> 18 -> 20 -> 22)
OTOH:
By looking at the response to the nmcli start attempt above it seems like it
wants network-manager to be a snap service....
I think snap is not really part of this old system, but how can I check?
If I want to get to the proper system copnfig with a stable networking system
can I do this simply using:
sudo apt install network-manager
or should it be some snap oriented command (I have never used snap myself)
I had a try at seeng what is here:
$ snap services
Service Startup Current Notes
canonical-livepatch.canonical-livepatchd enabled active -
lxd.activate enabled inactive -
lxd.daemon enabled inactive socket-activated
And will this require some manual tweakings, which might make services like
OpenVPN server not work after a reboot following the install?
If that happens then I am locked out of the server since OpenVPN is the one
making me able to connect to the remote site...
--
Bo Berglund
Developer in Sweden
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