So while fumbling about on my VPS I somehow managed to disable all networking. Using the VPS console I noticed this in
virtio_net virtio0 ens3: renamed from eth0
That doesn’t sound good. Sure enough, trying:
Failed to bring up eth0
Certainly explains the lack of network.
After some digging about on the net I edited
/etc/network/interfaces and changed all
eth0 references to
ens3. A quick reboot and everything is back in action.
I don’t know if it will revert back to
eth0, or if this is the right action to take, but so far so good.
A follow-up note. After upgrading the kernel on my VPS I had to revert the above change as the device had gone back to