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How to Install 2FAuth on Arch Linux

In this tutorial, you'll learn how to install 2FAuth on Arch Linux, a popular two-factor authentication system from https://github.com/Bubka/2FAuth.

Prerequisites

Before installing 2FAuth on your Arch Linux machine, you'll need the following:

Installation

Here are the steps to install 2FAuth on Arch Linux:

  1. Update the package repositories using the following command:

    sudo pacman -Syu
    
  2. Install the required packages using the following command:

    sudo pacman -S python python-pip qrencode
    
  3. Clone the 2FAuth repository from GitHub:

    git clone https://github.com/Bubka/2FAuth.git
    
  4. Install 2FAuth using pip by running:

    cd 2FAuth
    sudo pip install -r requirements.txt
    
  5. Generate a secret key and QR code for 2FA using the following command:

    python 2FAuth.py --generate
    
  6. The above command will generate a QR code that you can scan using Google Authenticator or any other two-factor authentication app. The QR code will look something like this:

    otpauth://totp/2FAuth%3Ajohn.doe?secret=6NVQOSFJBCM2QI2G&issuer=2FAuth
    
  7. Now, edit the users.csv file and add a new user with the username and the generated two-factor key. For example:

    john.doe,6NVQOSFJBCM2QI2G
    
  8. Run 2FAuth with the following command:

    python 2FAuth.py
    
  9. 2FAuth will prompt you to enter the username and then the one-time password (OTP) generated by your two-factor authentication app. Once validated, 2FAuth will grant you access.

Congratulations! You have successfully installed 2FAuth on Arch Linux.

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