The IP address is your systemвЂ™s IP, type yes and press Enter, you will be prompted to enter the remote userвЂ™s password: This method will only work in case you have password-based SSH access to the server:ДЇor my server I will use: ssh-copy-id Your local machine will most probably have the ssh-copy-id method by default. In this case, you can use an alternate method to add the SSH key to the CentOS Server. In some cases, you might not have the ssh-copy-id method available on your local machine. The fastest way is to use the ssh-copy-id method. Once you have created the key pair you need to add the SSH key to the CentOS server. If it outputs an error like вЂњNo such file or directory foundвЂќ then that means that the key pair was not successfully created and you will have to repeat the process again. The command given above will output the path to the file which contains the SSH key pair. Now you have successfully generated an SSH key pair, to verify this run the below-given command: ls -l ~/.ssh/id_*.pub Just press Enter if you do not want to provide any passphrase:ДЄfter providing the passphrase, you will see the following output: Now you will be asked to provide a passphrase to add an extra layer of security that prevents unauthorized users from accessing the server. If you choose the вЂyвЂ™ option, you will not be able to use the previous key pair to log in to the server. ItвЂ™s totally up to you to choose yes or no but be careful to choose the вЂyвЂ™ option. If you have created a key pair before on your client machine then you will be prompted to overwrite it. You can also provide the alternate path of where you want to save the key pair but it is recommended to use the default directory to save the key pair: If you press Enter, by default, it will save the key pair in the. To generate a new 2048-bit RSA key pair, open up the terminal and execute the below-given command: ssh-keygenДЄfter pressing the enter, you will see the following output: SSH keys offer a straightforward, steady technique of communicating with remote servers and are encouraged for all users. In this guide, weвЂ™ll be focusing on setting up SSH keys-based authentication for a CentOS 8 server. When working with CentOS servers most of the time is spent in the terminal linked to your server via SSH. It provides a password-enabled or password-less (disabled) authentication and encrypts communication between two hosts. SSH or Secure Shell is a protocol utilized to enable communication between two computers and share data.

Ssh copy id set default key