Learn how to enable passwordless SSH authentication on Linux in this helpful tutorial.
You probably secure shell into your Linux servers throughout the day. Hopefully, you've set those servers up such that you're using SSH Key Authentication. Why? Because that's the most secure way to use SSH logins to your remote data center servers.
If not, I want to walk you through the process of setting up SSH key authentication, with the addition of making it such that you don't have to enter a password when you log in.