Last week I got an update for Linux 18.04 and after that, I couldn't SSH into anything and I got:
ssh: Could not resolve host-name: Name or service not known
I used aliases to SSH into stuff I needed and I did not change it for weeks.
It looks like something changed with regards to my host-name but I am not sure what changed and where to look at. I checked the host-name list in
etc/hosts and there is my host-name with correct IP.
Does anyone know what to do?