Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two networked devices

Great for connecting on networks or from one computer to another
You may follow the video below or check out the text

sudo apt-get install ssh
Thats it!

Using SSH:
To connect to local host:
ssh localhost
Type yes when it ask for the authentication.
Now your remotely connected to your localhost

Connecting to localhost from another account:
ssh accountname@localhost

Connecting to an ip:
ssh username@ipaddr
Example: ssh john@

Any questions ask below or on the video!