Learning Tree International Blog

“I wish it were easier to turn on security,” grunted my wife through gritted teeth as she tried to configure some security feature in yet another app on her laptop. We can probably all sympathize: if you want to add security to an application, you have to do work upfront and every time you use […]

ITIL is the world’s most globally recognized leader in IT Service Management (ITSM) certification and is used by millions of IT professionals around the world. For 30 years it’s been instrumental in transforming the way IT professionals and organizations deliver empowering, impactful tech-led services. Now with the release of ITIL 4, ITIL has been brought […]

In Learning Tree Course 468, Introduction to Cybersecurity, we talk about three core elements of cybersecurity: confidentiality, integrity, and availability. The latter probably gets the least attention. It gets limited attention in Course 450, Introduction to Networking, too. Since availability is an essential pillar of cybersecurity, we’ll look at three important availability metrics here: Uptime […]

Cracking or discovering a simple password is not difficult, but it can be time-consuming. It just got a bit quicker. We discuss and demonstrate multiple ways to do that in Learning Tree Course 468 System and Network Security Introduction. One mechanism we do not demonstrate is the use of graphics cards (GPUs) to do the […]

Tunneling to Jupyter Jupyter is a terrific development environment, but I can’t have some bloated hogbeast browser taking up a lot of RAM when I fine-tuning machine-learning code on an edge device like the NVidia Jetson Nano. The solution is actually pretty easy. Move the browser side of the Jupyter equation to a desktop. There […]