Book Image

Mastering Linux Network Administration

By : Jay LaCroix
Book Image

Mastering Linux Network Administration

By: Jay LaCroix

Overview of this book

Linux is everywhere. Whether you run a home office, a small business, or manage enterprise systems, Linux can empower your network to perform at its very best. Armed with the advanced tools and best practice guidance of this practical guide, you'll be able to mold Linux networks to your will, empowering your systems and their users to take advantage of all that Linux-based networks have to offer. Understand how Linux networks function and get to grips with essential tips and tricks to manage them - whether you're already managing a networks, or even just starting out. With Debian and CentOS as its source, this book will divulge all the details you need to manage a real Linux-based network. With detailed activities and instructions based on real-world scenarios, this book will be your guide to the exciting world of Linux networking.
Table of Contents (17 chapters)
Mastering Linux Network Administration
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 9. Securing Your Network

Security vulnerabilities and the miscreants who take advantage of them are everywhere. With the millions of lines of code contained within software running on a typical network, it's statistically impossible to ever be 100 percent secure from all possible threats. However, a good network administrator pays attention to current trends in network security and takes all the possible precautions to help ensure the network is as secure as it possibly can be. In this chapter, we will take a look at some of the things that can be done to increase the security of your network.

In this chapter, we will cover:

  • Limiting the attack surface

  • Securing SSH

  • Configuring the iptables firewall

  • Protecting system services with fail2ban

  • Understanding SELinux

  • Configuring Apache to utilize SSL

  • Deploying security updates