Hi Moshe Ezderman can you please share more light on this

Open your terminal on your local machine and login into your nodejs-app server as a root user:

ssh root@NODE.SERVER.IP

In which directory am I supposed to run the command? Are NODE, SERVER, and IP placeholder values. I am getting the error when I run it as is.

ssh: Could not resolve hostname node.server.ip: nodename nor servname provided, or not known