When changing IP addresses or DNS server IP addresses, how do you handle it?
I believe directly editing 50-cloud-init.yaml is not recommended, so I do the following:
Create /etc/cloud/cloud-init.disabled
mv -i /etc/netplan/50-cloud-init.yaml /etc/netplan/55-base.yaml ︎File names should be 50 or higher, as appropriate.
For simple tasks like changing the IP, I sometimes wonder if directly editing 50-cloud-init.yaml would be acceptable.
I’d like to know what the recommended approach is.
I don’t have any servers running 24.04 at the moment, but I think the default renderer is Network Manager. If you view that .yaml file, it will show that I believe. You would not edit this file if you are using network manager.
When using network manager, you need to use nmcli commands to view & configure your connections.
What you are looking for should be addressed somewhere in the Connection Management Commands section.
Maybe start with a command like this to view the profile of your connections:
nmcli con show
I have used network manager to configure servers in the past, but I would have to dig up some of my command notes to give you more specifics. I typically use networkd as the render and configure everything in a custom .yaml file. No right or wrong way here, you would probably be best just to learn a few nmcli commands.
There is probably an official Ubuntu tutorial on network manager somewhere that I don’t have at my fingertips, maybe check for that as well.
︎File names should be 50 or higher, as appropriate.