How to generate an SSH key and add to authorized_keys

by Dillon -

In this article we explain how to generate a SSH key for your local machine and add your public key to the authorized_keys on a remote server.

Generate an SSH key for Windows, MAC and Linux

Note: If you are using Windows, we recommend you use a SSH client like PuTTY.

For MAC/Linux run:

ssh-keygen -t rsa

The ssh-keygen program will prompt you for the location of the key file. Press Return to accept the defaults.

You can optionally set a passphrase to protect your key. Press Return to skip this step.\

Add your SSH key to a remote servers authorized_keys

Note: You will need access to the remote server

First copy your public key you have just generated. Your public key has the .pub extension when generated using ssh-keygen.

Next on the remote server, open the authorized_keys file and paste your public key.

nano ~/.ssh/authorized_keys

Now your local machine can use SSH to login on the remote server.

ssh username@remote-host-name-or-ip
Dillon Smart

šŸ‘‹ Hey, I'm Dillon!

Iā€™m a Full-Stack developer in the UK, building websites and applications for around 12 years, landing my first full-time job as a developer in 2015.

Feel free to reach out on Twitter!

I Know That Now

[…] Note: It is best practice to connect to remote servers using either a strong unique password or using an SSH key pair. Refer to How to generate an SSH key pair and add to authorized_keys on remote server. […]


This site uses Akismet to reduce spam. Learn how your comment data is processed.