You can find more information on how to connect to UT VPN by visiting this page. If for any reason the ssh-copy-id method does not work, you can still copy your public SSH key manually using the second method. If you are connected to UT VPN, or have brought your machine on campus and have connected to UT wireless or the CS network, then you can use one of the methods below.

You should NOT touch this file or share it with anyone. Your private SSH key will be located by default at ~/.ssh/id_rsa. Your public SSH key is located by default at ~/.ssh/id_rsa.pub and is perfectly safe to be shared with anyone.

Enter a passphrase ( ALWAYS use a passphrase!!) 2 3.

Press Enter to use the default location.

To create a 4096-bit RSA key, run the following: Linux.cs. = The machine that you need to SSH into and add an SSH key to. To avoid confusion, we will use the following terminology: For the purposes of these instructions, we will assume that you want to SSH into a CS machine from a computer at home. Adding your public SSH key to linux.cs. will automatically add it to all other machines on the CS network. You can use the same public SSH key from one computer to connect to many others.Į.g., if you have two computers at home, home1 and home2, and want to use them to connect to remote1, remote2, and remote3 you would create an SSH key pair on both home1 and home2, and then send the public key from home1 to all three remote computers, and lastly you would send the public key from home2 to all three remote computers.īelow are the necessary instructions to create an SSH key pair and add your public key to your CS account. You will create an SSH key pair on each computer that you want to SSH from.

In order to use SSH keys to connect to a remote computer, one must first create an SSH key pair on one's computer, then copy the public SSH key to the remote computer. The private key should never be shared with anyone and should be kept safe. The public key, as the name suggests, is public and can be safely shared with the world. The University ISO will quarantine any host allowing SSH access that has not disabled password authentication.Īn SSH key pair consists of two keys: One public key and one private key. From UT VPN, UT wireless, or CS networkįor instructions on adding SSH keys for other platforms, visit this FAQ.Īs of April 12, 2019, SSH keys are required when SSHing to CS/CSRES networks when outside of our networks, campus wireless, or the VPN.

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