SSH COPY KEYS TO ANOTHER COMPUTER HOW TO

Now it’s time to copy the public key on the remote server. The SSH Keys have been generated on your system. Once the whole process is complete, the following message appears on your screen. Enter passphrase (empty for no passphrase):Įntering this passphrase will ensure that even if a person gets access to your private key, then he won’t be able to access your remote server without this passphrase. The next prompt will ask you to enter a passphrase of an arbitrary length, it will ensure two-level security on your device. Enter file in which to save the key (/home/your_name/.ssh/id_rsa): /home/your_name/.ssh/id_rsa_client_1 Replace the xxx at the end of the file name with an appropriate name, as shown below and press Enter. Enter file in which to save the key (/home/your_name/.ssh/id_rsa): /home/your_name/.ssh/id_rsa_xxx Now if you do not have any existing SSH key pair on your computer then simply press Enter, but if you have an existing SSH key then save the key with a different file name as shown below. generating public/private rsa key pair.Įnter file in which to save the key (/home/harshit/.ssh/id_rsa): If the command runs successfully, then the following message will prompt on your screen.

For better security, if you want to generate SSH keys with higher bits, then use the following command. ssh-keygenīy default, the SSH keys are of 2048 bit. To generate a new SSH key pair on your computer type the command as shown below.

SSH COPY KEYS TO ANOTHER COMPUTER HOW TO

Let’s move on to the next step and see how to generate SSH keys for both the cases. If you have an existing SSH key pair, then you can either use the same key pair to access two remote servers, or you can also create a different key pair having a different name. If the above command returns no such file or directory or no matches found, then it means SSH Key pair does not exist. To check whether an SSH Keypair already exists on your computer type this command in your terminal. See if you have any existing SSH Key on your computer In this guide, we will see how to set up SSH Keys on Ubuntu 20.04 LTS server. This method ensures that the server can only be accessed by clients containing the private key. This string can only be decrypted using the private key available on the client computer. A copy of this public key is made available on the remote server. When a client sends a connection request to the server then the server generates a random string and encrypts it using the public key. In the SSH key-based authentication, a key pair is generated on the client computer, called as the public key and private key.

There are two types of authentication mechanisms used to connect to the remote server, password-based authentication (prone to Brute-force attacks) and SSH Keys based authentication (which is very secure). SSH connection ensures that the commands that are typed in the terminal are sent to the remote server through an encrypted channel. SSH is a secure client-server network protocol which helps a client computer to connect and communicate to a remote server.

Ssh copy keys to another computer