SSH, the secure shell, is often used to access remote Linux systems. But its authentication mechanism, where a private local key is paired with a public remote key, is used to secure all kinds of online services, from GitHub and Launchpad to Linux running on Microsoft’s Azure cloud.

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Sep 20, 2015  If you're using Putty to SSH into your Ubuntu Server, then this video will show you how to configure SSH and Putty to use RSA authentication keys. Securing SSH with Public and Private RSA Keys. Nov 10, 2011  How to Generate A Public/Private SSH Key Linux 1. Open a terminal. In the next screen, you should see a prompt, asking you for the location to save the key. Next, you will be prompted to enter passphrase. Your public and private SSH key should now be generated. Jul 29, 2019  The secure private key ensures that you are the only person who can encrypt the data that is decrypted by the public key. Step 2- Copy Public Key to the Ubuntu Server First, get the IP address of the Ubuntu server you want to connect to.

Generating these keys from Linux is easy, and thanks to Ubuntu on Windows, you can follow the same process from Windows 10. But even without Ubuntu, SSH keys can also be generated with the free and open source Windows application, PuTTy

Over the following few steps, we’ll guide you through the process of generating SSH keys using both Ubuntu on Windows and PuTTY.

Requirements

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All you need is a PC running Windows 10 and either of the following installed:

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• The puttygen.exe executable from PuTTY

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If you don’t already have Ubuntu on Windows, take a look at our Install Ubuntu on Windows 10 tutorial.