Linux is the operating system of choice for enterprises that need a stable, agile, and open-source platform, and it's only getting more popular. Qualified system administrators are in demand. If you've been anticipating a transition to Linux for your compa ...

With so many technical terms, cultural quirks, and options to pursue, getting started with Linux can seem overwhelming. In this course, instructor Scott Simpson covers the fundamentals of what you need to know in order to make smart choices about learning ...

If you watched our Introduction to Ethical Hacking course, you know the basics of ethical hacking. Ethical hackers use their knowledge for good: to test if an organization's network is vulnerable to outside attacks. But where do they start? With footprinti ...

After footprinting and reconnaissance, scanning is the second phase of information gathering that hackers use to size up a network. Network scans are also a key tool in the arsenal of ethical hackers, who work to prevent attacks on an organization's infras ...

Linux is a term that we are hearing more often lately, but what is it? In this course, instructor Grant McWilliams explains what Linux is and how it differs from other operating systems, then walks through how to install it to a virtual machine and use it. ...

Ethical hackers: Get an inside look into the tools the black hat hackers use to "sniff" network traffic, and discover how to countermeasure such attacks. Security ambassador Lisa Bock explains what a sniffer is, and how hackers use it to intercept network ...