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

Certificate automation and the ACME protocol

In recent years, the automation of CAs has seen some serious uptake. Let's Encrypt in particular has fueled this change, by offering free public-certificate services. They've reduced the cost of this service by using automation, in particular using the ACME protocol (RFC 8737/RFC 8555) and the Certbot services for verification of CSR information, as well as for issuing and delivering certificates. For the most part, this service and protocol focuses on providing automated certificates to web servers, but that is being scaled out to cover other use cases.

Implementations such as Smallstep, which uses the ACME protocol for automating and issuing certificate requests, have extended this concept to include the following:

  • Open Authorization (OAuth)/OpenID Connect (OIDC) provisioning, using identity tokens for authentication, allowing single sign-on (SSO) integration for G Suite, Okta, Azure Active Directory (Azure AD), and...