Key-Based SSH Logins With PuTTY
This guide describes how to generate and use a private/public key pair to log in to a remote system with SSH using PuTTY. PuTTY is an SSH client that is available for Windows and Linux (although it is more common on Windows systems). Using key-based SSH logins, you can disable the normal username/password login procedure which means that only people with a valid private/public key pair can log in. That way, there is no way for brute-force attacks to be successful, so your system is more secure.
1 Preliminary Note
In this tutorial I use a Windows desktop to connect to a Linux SSH server (Debian Sarge, IP address: 192.168.0.100).
2 Install PuTTY, PuTTYgen, And Pageant On The Windows System
First we need to install PuTTY, PuTTYgen, and Pageant on our Windows system.