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:

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

Update the package repositories using the following command:
```
sudo pacman -Syu
```
Install the required packages using the following command:
```
sudo pacman -S python python-pip qrencode
```

Clone the 2FAuth repository from GitHub:

git clone https://github.com/Bubka/2FAuth.git

Install 2FAuth using pip by running:

cd 2FAuth
sudo pip install -r requirements.txt

Generate a secret key and QR code for 2FA using the following command:
```
python 2FAuth.py --generate
```
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
```
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
```
Run 2FAuth with the following command:
```
python 2FAuth.py
```
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.