If you see No such file or directory or no matches found it means that you do not have an SSH key and you can proceed with the next step and generate a new one. If there are existing keys, you can either use those and skip the next step or backup up the old keys and generate a new one. To see if existing SSH keys are present: ls -al ~/.ssh/id_*.pub The following steps will describe the process for configuring passwordless SSH login:īefore generating a new SSH key pair first check if you already have an SSH key on your client machine because you don’t want to overwrite your existing keys. To set up a passwordless SSH login in Linux all you need to do is to generate a public authentication key and append it to the remote hosts ~/.ssh/authorized_keys file. In this tutorial, we will show you how to setup an SSH key-based authentication as well how to connect to your Linux server without entering a password. The two most popular mechanisms are passwords based authentication and public key based authentication. Secure Shell (SSH) is a cryptographic network protocol used for secure connection between a client and a server and supports various authentication mechanisms.
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