I needed to add a new IP to the loopback interface (besides the usual localhost 127.0.0.1)
On my Ubuntu server running Netplan I've added on the .yaml file the code
lo:
addresses: [50.1.0.1/16]
I applied and everything was cool. The issue came after I wanted to change the IP address; so I edited the file with the new IP for the loopback interface:
lo:
addresses: [10.1.0.1/16]
and now, after having applied, I have both IPs.
How can I delete the previews IP and how can I rewrite the configuration instead of adding IPs every time I want to change it?
Try to use:
ethernets:
lo:
match:
name: lo
addresses: [ 10.1.0.1/16 ]
instead.
It should keep just the IP you want