How to Install FreeRADIUS on POP! OS Latest

In this tutorial, we will learn how to install FreeRADIUS on POP! OS latest step-by-step. FreeRADIUS is a widely used open-source RADIUS (Remote Authentication Dial-In User Service) server that is capable of providing authentication, authorization and accounting services.

Step 1: Update the System

Before starting the installation process, it is always recommended to update the system to its latest version. Run the following command to update your POP! OS system:

$ sudo apt update && sudo apt upgrade -y

Step 2: Install FreeRADIUS

Now, we need to download and install the FreeRADIUS package from the official website. Run the following command in the terminal to install FreeRADIUS:

$ sudo apt install freeradius freeradius-utils -y 

This command will install the required packages on your system.

Step 3: Configure FreeRADIUS

Once the installation process is completed, we need to configure FreeRADIUS. The main configuration file for FreeRADIUS is /etc/freeradius/3.0/radiusd.conf. Open this file using your favorite text editor:

$ sudo nano /etc/freeradius/3.0/radiusd.conf

In this file, you can specify the IP address of the RADIUS client, the shared secret, and other options related to the RADIUS server.

Step 4: Start FreeRADIUS

After configuring the FreeRADIUS server, we need to start it. Use the following command to start the FreeRADIUS server:

$ sudo systemctl start freeradius

To check the status of the FreeRADIUS server, use the following command:

$ sudo systemctl status freeradius

If everything is configured correctly, you should see the status of the FreeRADIUS server as active.

Step 5: Test FreeRADIUS

Now that the FreeRADIUS server is running, it's time to test if it's working. Use the following command to test the FreeRADIUS server:

$ radtest username password localhost 0 testing123

Here we used the radtest command to test the FreeRADIUS server. Replace "username" and "password" with the actual username and password that you want to test. If the output shows that the authentication is successful, then your FreeRADIUS server is working as expected.

Conclusion

In this tutorial, we have learned how to install, configure and test FreeRADIUS on POP! OS latest version. FreeRADIUS is an open-source RADIUS server that provides authentication, authorization, and accounting services. It is a very useful tool for network administrators to manage user access on their network.