How to get eth0 and wlan0 back on Ubuntu Mate 18.04?

[Ralf Mardorf]

On Thu, 28 Jan 2021 21:30:59 +1100, Karl Auer wrote:
>On Thu, 2021-01-28 at 10:02 +0100, Ralf Mardorf via ubuntu-users wrote:
>> On Thu, 28 Jan 2021 19:31:14 +1100, Karl Auer wrote:  
>> > Edit /etc/netplan/01-network-manager-all.yaml and make it look
>> > something like this:  
>> 
>> Does it require NetworkManager?  
>
>Why don't you have a good look at the name of the file? Move on to a
>close inspection of the suggested contents from my earlier message. Pay
>special attention to the "renderer" line. Then, after due and careful
>consideration (don't rush it!), take a wild stab at whether it requires
>NetWork Manager.

So it requires 1. netplan and 2. either NetworkManager or
Systemd-networkd? I can't speak for the OP, but I'm using nothing from
all those at all.

I'm using dhcpcd and before that I used pppd, ip link set.

On Thu, 28 Jan 2021 19:31:14 +1100, Karl Auer wrote:
>It also won't help you if you are configuring your interfaces outside
>netplan.

*?*