SSH is a very powerful tool that allows you to directly access the command line of your Linux VPS. This will allow you to execute Linux commands to control your VPS and manipulate files and directories and applications.
By default, SSH runs on port 22 of your VPS. To connect to your VPS using SSH, you will need to use an SSH client.
How to connect to linux VPS using SSH
For Windows, probably the most popular free SSH client is PuTTY, you can download in from the link below:
What is putty
PuTTY is an SSH and telnet client, developed originally by Simon Tatham for the Windows platform. PuTTY is open source software that is available with source code and is developed and supported by a group of volunteers.
Also you can see this article video below.