5. Sans Cyber Aces Online
It’s undeniably basic, and yet Sans Cyber Aces isn’t far off the mark when it says that it offers the best free online cybersecurity classes on the web.
After reading through a series of comprehensive entries about operating systems, networking and system administration, you can register for a quiz that puts your expertise to the test. Should highlighted talking points such as installing Linux virtual machine software or basic PHP, Bash and PowerShell web scripting pique your interest, you’ll be in for an engaging lecture.