2FAuth is a two-factor authentication server that is designed to work with client devices that support the TOTP algorithm. It provides an additional layer of security for your applications and services by requiring users to provide both a password and a time-based one-time password (TOTP) generated by a mobile device.
In this tutorial, we will guide you through the process of installing 2FAuth on OpenBSD.
Before you begin, you will need:
To begin the installation process, you need to install some dependencies required by 2FAuth:
sudo pkg_add python-3.9.5
sudo pkg_add py3-pip-20.3.4p1
sudo pkg_add py3-pyotp-2.3.0
sudo pkg_add py3-flask-1.1.2
sudo pkg_add py3-flask-restful-0.3.9
Next, clone the 2FAuth repository from Github:
git clone https://github.com/Bubka/2FAuth.git
Navigate to the 2FAuth directory, copy the default configuration file, and open it for editing:
cd 2FAuth
cp config.example.ini config.ini
vi config.ini
In the configuration file, you need to specify the following settings:
host - the IP address or hostname where the server will listen for requests.port - the port number where the server will listen for requests.debug - whether to run the server in debug mode (True/False).ssl - whether to use SSL (https) protocol or not (True/False).secret_key - a secret key used to encrypt session data. You can generate one using a secure random string generator like passwordsgenerator.net.admins - a list of user accounts that will have administrative privileges.Save and close the file when you are done.
To make sure 2FAuth starts automatically on boot, create a systemd service file by running the following command:
sudo vi /etc/systemd/system/2fauth.service
Add the following content to the file:
[Unit]
Description=2FAuth - A two-factor authentication server
[Service]
User=root
Group=root
WorkingDirectory=/path/to/2FAuth
ExecStart=/usr/local/bin/python3 /path/to/2FAuth/app.py
Restart=always
[Install]
WantedBy=multi-user.target
Replace /path/to/2FAuth with the actual path where you cloned the 2FAuth repository.
Save and close the file when you are done.
You can now enable and start the 2FAuth service by running the following commands:
sudo systemctl enable 2fauth.service
sudo systemctl start 2fauth.service
By default, OpenBSD blocks incoming connections to all ports except 22 (SSH). You need to allow connections on the port where 2FAuth listens for requests. If you specified a custom port in the configuration file, replace PORT_NUMBER with that port number.
sudo pfctl -e
echo "pass in proto tcp from any to any port PORT_NUMBER" | sudo tee -a /etc/pf.conf
sudo pfctl -f /etc/pf.conf
You can verify that 2FAuth is working correctly by opening a web browser and visiting http://SERVER_IP:PORT_NUMBER. Replace SERVER_IP with the IP address of your OpenBSD server and PORT_NUMBER with the port number specified in the configuration file.
If everything is working correctly, you should see the login page for 2FAuth.
You have successfully installed 2FAuth on OpenBSD! You can now use it to provide an additional layer of security for your applications and services.
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