Start Linux VM

It helps to install any pending updates
	sudo apt update
	sudo apt upgrade
Maybe restart to be sure nothing is pending

Check your Linux users to verify you have at least two users
defined for which you know login credentials
	sudo less /etc/passwd
	su {userID} (to login as a user if needed)
 
Check your Linux hostname & IP address
	hostname
	ip a[ddress]
See if they are pingable from the VM host
	Use NAT for VMware network, remove & reinstall if necessary
	ping (Mac, PC, Linux) or (PowerShell) Test-NetConnection
	Also ipconfig on PC to find IP address

Try SSH from VM host (aka the SSH client) - shouldn't work (rejected)
e.g., from PowerShell or CMD console (PC) or Terminal (Mac)
	ssh userid@hostname

Install SSH (on Linux VM aka SSH host)
	sudo apt install openssh-server
Check that it worked
	sudo systemctl status ssh

Check that Linux firewall is disabled
(if not, disable for now)
	sudo ufw status
	sudo ufw disable (if needed)

SSH from client to IP address or hostname should work
Note issue(s)
	with key / fingerprint
	use login@hostname syntax
Look at ssh known-hosts on SSH client
Look at w and tail /var/log/auth.log on SSH host
Exit SSH client session

On SSH host enable firewall but deny ssh & port 22 if already allowed
	sudo ufw enable
	sudo ufw deny ssh (if necessary)

Try SSH from client - shouldn't work (timeout)

Enable SSH via port 22 on SSH host
	sudo ufw allow ssh

Try SSH from client - should work
Exit SSH client session

On SSH host edit* /etc/ssh/sshd_config adding, e.g., an AllowUsers line
at bottom which includes one or more users but omits one or more other users
Restart SSH on host
	sudo service ssh restart
* Make a backup first  recommended

Try SSH from client using omitted login - shouldn't work (access denied)
Try SSH from client using included login - should work