How does ssh works in Vyos? OR ssh connection between debian and Vyos?

How does ssh works in Vyos? OR ssh connection between debian and Vyos?

Can you explain yourself?

I have two virtual machines. One is debian (Jessie) and other is VyOS. What configuration settings do i need to do on VyOS machine to set up communication between VyOS and debian.

??

you enable SSH and SSH into it. One of the basic fundamental steps to configuring the router. What exactly are you looking for here?

If you follow the documentation, it is explained.
https://wiki.vyos.net/wiki/User_Guide#Quick_Start_Guide