SSH keys are a way to identify trusted computers, without involving passwords. The steps below will walk you through generating an SSH key and adding the public key to the server.
SSH keys are a way to identify trusted computers, without involving passwords. The steps below will walk you through generating an SSH key and adding the public key to the server. Step 1: Check for SSH Keys First, check for existing SSH keys on your computer. Open Git Bash, Cygwin, or Terminal, etc. Mar 28, 2020 In this article I will share the steps to configure Host based authentication in sshdconfig and sshconfig for Linux server and client and a comparison between Host based Authentication vs Public Key Authentication. Host Based authentication vs Public key based authentication. Host based authentication is different compared to SSH Public Key Authentication in terms of configuration.
Step 1: Check for SSH Keys
Sep 02, 2015 I had public keys set up so I could connect to this server from my desktop without a password (using keychain to manage the ssh-agent). The server has just been upgraded to RHEL 6. Before adding a new SSH key to the ssh-agent to manage your keys, you should have checked for existing SSH keys and generated a new SSH key. When adding your SSH key to the agent, use the default macOS ssh-add command, and not an application installed by macports.
First, check for existing SSH keys on your computer. Open Git Bash, Cygwin, or Terminal, etc. and enter:
Check the directory listing to see if you already have a public SSH key. By default, the filenames of the public keys are one of the following:
- id_dsa.pub
- is_ecdsa.pub
- id_ed25519.pub
- id_rsa.pub
If you see an existing public and private key pair listed (for example id_rsa.pub and id_rsa) that you’d like to use, you can skip Step 2 and go straight to Step 3.
Step 2: Generate a new SSH key
With your command line tool still open, enter the text shown below. Make sure you substitute in your email address:
You’ll be asked to enter a passphrase, or simply press Enter to not enter a passphrase:
After you enter a passphrase (or just press Enter twice), review the fingerprint, or ‘id’ of your SSH key:
Step 3: Add your key to the ssh-agent
To configure the ssh-agent program to use your SSH key, first ensure ssh-agent is enabled.
If you are using Git Bash, turn on the ssh-agent with command shown below instead:
Then, add your SSH key to the ssh-agent:
Step 4: Add your SSH key to the server
![Rhel 6 vs rhel 7 Rhel 6 vs rhel 7](https://vorkbaard.nl/wp-content/uploads/2013/06/ssh_key_auth-6.jpg)
To add your public SSH key to the server, you’ll copy the public SSH key you just created to the server. Substitute “username” with your username on the server, and “server.address.com” with the domain address or IP address of your server:
Rhel 6 Vs Rhel 7
The server will then prompt you for your password:
Rhel Generate Ssh Host Key
That’s it! You should now be set up to connect to the server without having to authenticate.