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

Distributed/community honeypot – the Internet Storm Center's DShield Honeypot Project

First, get the current date and time from your host. Any activity that's heavily dependent on logs needs accurate time:

# date
Fri 16 Jul 2021 03:00:38 PM EDT

If your date/time is off or isn't configured reliably, you'll want to fix that before you start – this is true of almost any service in any operating system.

Now, change to an installation directory, then download the app using git. If you don't have git, use the standard sudo apt-get install git that we've used throughout this book to get it. Once git is installed, this command will create a dshield directory under the current working directory:

git clone https://github.com/DShield-ISC/dshield.git

Next, run the install script:

cd dshield/bin
sudo ./install.sh

Along the way, there will be several input screens. We'll cover some of the key ones here:

  1. First, we have...