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How to setup 2FA On Linux SSH Login

  This is a simple setup guide to enabling Two Factor Authentication (2FA) on Linux SSH login. I this article I wont go deep into setup and issues that I have faced when implementing this. First thing is first Update your system first. I have used Ubuntu 20.04 and it is always up to date. To enable 2FA you need to install google authenticator modules sudo apt install libpam-google-authenticator Configuration for PAM and SSHD Add the the following line to /etc/pam.d/sshd and After adding this line please restart the sshd services.  auth required pam_google_authenticator.so Go to /etc/ssh/sshd_config and check if the following line exist. Default value will be "no" so change it to "yes" to activate.  ChallengeResponseAuthentication yes Configuration for Authenticator In the terminal run google authenticator command It will ask few things to acknowledge by user. Details you can see from the below video. Once this part is done you are ready to use the 2FA in ubuntu. T
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Technology is going too far



Now technology is going from micro to nano and beyond. Department of Energy’s Sandia National Laboratories- Have developed a Lilliputian "machines" operating inside living cells. A robot which is smaller than a dime. It was so amazing..i got the video from there website.
This little fella have a an 8K memory processor as its brain and almost all type of sensors, gas sensors, a cam, microphone and collision detection. I think you guys will love this. I will give the links and you can see more info.

Sandia
PopularMechanics




See this nano car. This is world smallest human made living machine. Size of a rice.hehe nice dhoa.. enjoy this nice tech. See below link for more information.

CNN

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