#Ssh copy id with yes and password install#
#Ssh copy id with yes and password password#

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.

#Ssh copy id with yes and password password#

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.It may be a brutal way, but I am sure they are no leftovers! 💀īy taking less than 30 minutes to come to this solution, I estimate that I save at least the same amount of time for myself for the next five years. To remove old public keys of previous installations, I also add the deletion of the. # Add back our key, as we have remove the former authorized keys, along with the new one! Sshpass -e ssh-copy-id -i ~/.ssh/id_rsa.pub -o StrictHostKe圜hecking=no || echo 'FAILED' # Export the password into an environment variable # ssh-copy-id -i ~/.ssh/id_rsa.pub SERVERĮcho '. # If you want to copy your key to only one server # to remove the pain from typing each time our password # Script to automatically add our public key on a list of servers So I glued together with some answers and I came with the Bash program below: #!/bin/bash

I looked upon the Internet, but I did not find a perfect solution for me. So, I decided to try to add more automation to that part of my script. 🔑 With more than 20 machines that I want to be able to connect without being prompting my password, I knew that I would need to enter the same amount of times my complicated password… And it was only the minimum, as I could get it wrong… ❌

#Ssh copy id with yes and password install#

With that, you do not need to enter your password each time you log in to that server.īut it has a little (and normal) drawback: the first time you connect to the server to install a new SSH public key, you need to enter your password. Ssh-copy-id -i ~/.ssh/id_rsa.pub Excerpt of my procedureįor those that do not know the useful ssh-copy-id command, it is a tool part of OpenSSH that adds an SSH public key on a server as an authorized key. Ssh-copy-id -i ~/.ssh/id_rsa.pub -i ~/.ssh/id_rsa.pub. 💻 Fortunately, I have a semiautomatic procedure to setup myself quickly, but there was a part that did not really strike a chord in me: # Add my public key to the principal servers (one command at at a time) Last month, I receive a more recent laptop at my workplace and I needed to reinstall my distribution, Manjaro, on it.