Course info
Jul 13, 2016
1h 55m

Whether you're providing enterprise-level services over the web or a company intranet, or simply trying to protect the applications running in your local data center, your network represents your first line of defense against external attacks on your infrastructure. This course, Linux Network Security, will cover the very best security software and practices available to Linux admins, including FreeRADIUS, Wireshark, OpenVAS, iptables, and OpenVPN. You will start with understanding the threats and the tools you can use to counter them. You'll continue with seeing how to configure and deploy Linux firewall servers using Netfilter and iptables as well as securing your network connections reliably through encrypted virtual private networks. After completing this course, you'll be better prepared to successfully monitor network activity, scan for vulnerabilities, and protect the legitimate use of your hardware.

About the author
About the author

David taught high school for twenty years, worked as a Linux system administrator for five years, and has been writing since he could hold a crayon between his fingers. His childhood bedroom wall has since been repainted.

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Section Introduction Transcripts
Section Introduction Transcripts

Course Overview
Hi, I'm David Clinton and your computers and applications probably aren't secure enough. At least, not yet. With the constant need to connect everything to everything else, there really is no way to be absolutely sure that the only packets getting through are the right ones. But there is a whole lot that you can do to get your infrastructure closer to perfection. The first step is to understand the kinds of threats that you face. Then, you'll need a solid introduction to the many powerful Linux-based tools that can be brought to bear in the battle against those threats. After that, staying ahead of the bad guys is simply a matter of discipline and careful planning. Joining this course and getting up to speed on things like network sniffing, vulnerability testing, firewalls, and virtual private networks can help with most of that. Your network is the way most people get to your applications and services, which means that it forms the frontline of your security defenses. You've got a heavy responsibility to make sure that it's built as securely as possible, so I really do hope you not only take and enjoy the course, but use what you learn to substantially improve the security of your infrastructure.