Search Results for: create-key

You can add or remove passphrase for your SSH private keys after creating your key pairs without creating a new key pair by using any of the following methods;

1. Interactive ssh-keygen

   $ ssh-keygen -p
   Enter file in which the key is (/home/user/.ssh/id_rsa):
   Enter new passphrase (empty for no passphrase):
   Enter same passphrase again:
   Your identification has been saved with the new passphrase.

2. Inline ssh-keygen

   $ ssh-keygen -p -P old_passphrase -N new_passphrase -f /home/user/.ssh/id_rsa
   Your identification has been saved with the new passphrase.

3. openssl

   $ openssl rsa -in ~/.ssh/id_rsa -out ~/.ssh/id_rsa_new
   Enter pass phrase for /home/user/.ssh/id_rsa:
   writing RSA key

Public and private key pairs are used for publickey authentication method in SSH. When creating the SSH key pair for publickey authentication, you can assign a passphrase to the …
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We usually login to a remote SSH server using password authentication method. Username and password combination is the most common authentication method for SSH and is a suitable method …
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A public and private key pair is required for public-key authentication in SSH. SSH key pair can be created using ssh-keygen in Linux and other Unix-based operating systems, but …
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You can login to an SSH server without password by using public key authentication via these steps;

1. Generate an SSH key pair. Make sure to not set any passphrase for the key pair

   How to generate SSH keypair

2. Enable public key authentication in the target server

   How to disable public key authentication in SSH

3. Copy your SSH public key to the server

   How to copy SSH public key to server

You will no longer be prompted for password the next time you log in to the server.