VirtualBox: port forwarding to guest from host

Something weird in the new (2015-06) version.

• Network
• Set "NAT"
• Click "Port Forwarding"
• "Insert new rule" (right-hand nav button)
• Rule 1
• Host IP: 127.0.0.1
• Host port: 2222
• Guest IP: [leave blank]
• Guest Port: 22

To get to guest:

ssh -p 2222 myuser@localhost

where myuser is user you created when you installed Linux OS on to VM.