LXer: How to set up 2 step authentication for ssh on your Linux servers
 

Published at LXer:

Just because you rely on Linux as your server platforms, doesn't mean it's fail proof. There are still steps you can take to ensure your data is safe from prying eyes. One thing you should do is enable two-step authentication for secure shell. This means anyone attempting to get into your server via ssh will have to have both a password and a verification code. This is actually made fairly easy, thanks to the Google Authenticator. Let me walk you through the steps of setting this up.

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