Key-Based SSH Logins With PuTTY

    Date08 Dec 2006
    7926
    Posted ByBrittany Day
    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.

    In this tutorial I use a Windows desktop to connect to a Linux SSH server (Debian Sarge, IP address: 192.168.0.100). First we need to install PuTTY, PuTTYgen, and Pageant on our Windows system. All we need to do is download the exectuable files (.exe) and save them somewhere, e.g. on the desktop. We don't need to install them as they are standalone applications. To start them, we only need to double-click them.

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