How do I use Google Authenticator on Ubuntu?

How to Use Two-Factor Authentication with Ubuntu

  1. Step 1: Install Google’s PAM Package. First off, install the Google PAM package.
  2. Step 2: Install Google Authenticator App on Your Smartphone.
  3. Step 3: Configure Google PAM in Ubuntu.
  4. Step 4: Integrate SSH with Google Authenticator.

How do I use Google Authenticator on Linux?

Log into your Linux machine and follow these steps:

  1. Open a terminal window.
  2. Issue the command sudo apt install libpam-google-authenticator.
  3. Type your sudo password and hit Enter.
  4. If prompted, type y and hit Enter.
  5. Allow the installation to complete.

How do I set up Google Authenticator Server?

  1. Step 1 – Add New Authentication Server.
  2. Step 2 – Install Google Authenticator.
  3. Step 3 – Add or modify user.
  4. Step 4 – Activate Authenticator for this OTP seed.
  5. Step 5 – Test the token.
  6. Step 6 – Enable authentication server.
  7. Step 7 – Using the token.

How do I use Google Authenticator to SSH?

On your mobile device, open the Google Authenticator app, select + to add a new account. Then, select Scan a QR code, enabling you to scan the previously generated QR code. Scanning the QR code will show you the Linux virtual machine (VM) name, the user account, and a unique TOTP code that changes every 30 seconds.

What is Pam Ubuntu?

Linux-PAM is a system of libraries that handle the authentication tasks of applications (services) on the system. The library provides a stable general interface (Application Programming Interface – API) that privilege granting programs (such as login(1) and su(1)) defer to to perform standard authentication tasks.

How install Authy Linux?

So experience this new app by heading over to authy.com/download, head to “Desktop” and find the Linux beta download in the dropdown menu.

Can you use Google Authenticator on PC?

Basically, Google Authenticator receives a scanned code from the app that is setting up 2FA, and then it produces a 2FA code to access the app or online account. However, since it only works on Android and iOS devices, it cannot work on desktop PCs directly.

How do you implement MFA in Openssh?

Enabling two-factor authentication for SSH

  1. Step 1: Disable root logins for SSH. If you haven’t done so already, you should disable root SSH logins on your server and create a normal user account.
  2. Step 2: Install an authenticator app on a mobile device.
  3. Step 3: Enable two-factor authentication on the server.

Does SSH use MFA?

With the nullok entry on the line, SSH will not require an OTP code for users on the machine that are not configured for MFA. Completely remove this option to force every user to use MFA on this system. Save and close the file.

Does ssh use PAM?

Answer. Before enabling ssh to use PAM authentication it is recommended that you leave an additional login window open with root access until you verify that ssh with PAM authentication is working properly.