![]() To check whether the key files exist, run the following ls If you generate a new key pair, the old one will be overwritten. The chances are that you already have an SSH key pair on your Ubuntu client machine. ![]() We’ll also show you how to set up an SSH key-based authentication and connect to remote Linux servers without entering a password. This article explains how to generate SSH keys on Ubuntu 20.04 systems. The two most common ones are password and public-key based authentication.Īuthentication using a public key is based on the use of digital signatures, and it is more secure and convenient than traditional password authentication. SSH supports various authentication mechanisms. With SSH, you can run commands on remote machines, create tunnels, forward ports, and more. Secure Shell (SSH) is a network protocol for creating a secure connection between a client and a server.
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