Book Image

Linux for Networking Professionals

By : Rob VandenBrink
1 (1)
Book Image

Linux for Networking Professionals

1 (1)
By: Rob VandenBrink

Overview of this book

As Linux continues to gain prominence, there has been a rise in network services being deployed on Linux for cost and flexibility reasons. If you are a networking professional or an infrastructure engineer involved with networks, extensive knowledge of Linux networking is a must. This book will guide you in building a strong foundation of Linux networking concepts. The book begins by covering various major distributions, how to pick the right distro, and basic Linux network configurations. You'll then move on to Linux network diagnostics, setting up a Linux firewall, and using Linux as a host for network services. You'll discover a wide range of network services, why they're important, and how to configure them in an enterprise environment. Finally, as you work with the example builds in this Linux book, you'll learn to configure various services to defend against common attacks. As you advance to the final chapters, you’ll be well on your way towards building the underpinnings for an all-Linux datacenter. By the end of this book, you'll be able to not only configure common Linux network services confidently, but also use tried-and-tested methodologies for future Linux installations.
Table of Contents (20 chapters)
1
Section 1: Linux Basics
4
Section 2: Linux as a Network Node and Troubleshooting Platform
8
Section 3: Linux Network Services

Chapter 9: RADIUS Services for Linux

In this chapter, we'll cover Remote Authentication Dial-In User Service (RADIUS), one of the main methods of authenticating services over a network. We'll implement FreeRADIUS on our server, link it to a backend Lightweight Directory Access Protocol (LDAP)/Secure LDAP (LDAPS) directory, and use it to authenticate access to various services on the network.

In particular, we'll cover the following topics:

  • RADIUS basics—what is RADIUS and how does it work?
  • Implementing RADIUS with local Linux authentication
  • RADIUS with LDAP/LDAPS backend authentication
  • Unlang—the unlanguage
  • RADIUS use-case scenarios
  • Using Google Authenticator for multi-factor authentication (MFA) with RADIUS