As co-author of the official AWS Certified Solutions Architect Study Guide: Associate (SAA-C03) Exam, 4th Edition, I'm pretty picky when it comes to how I spend my time watching video training courses.

The Problem with Most Video Training

I've watched a lot of videos that are designed to help you pass the Solutions …

Puzzled by networking on AWS? Check out my AWS networking deep dive series!

AWS Networking Deep Dive: Route 53 DNS

Configure Route 53 for any domain name, and configure health checks and routing policies.

AWS Networking Deep Dive: Virtual Private Cloud (VPC)

Create secure and scalable VPCs. Implement multi-VPC …

I think it’s time to stop using the term “network function virtualization”. Why? Because it doesn’t exist, at least not in the way the term suggests. The term is a category error, and when people try to make sense of the term, confusion and frustration ensue.

Think of it like this: what’s the difference between a …

I know what you’re thinking. “Why use Visual Studio Code instead of the PowerShell ISE?” Well, if you’re using Mac OS or Linux, you don’t have the option to use the PowerShell ISE natively. And that’s a problem if you want to take advantage of the cross-platform capabilities of PowerShell Core. In this article, I’ll …

If you haven’t learned IPv6 yet, well, you’re not the only one. In December 2016, IPv6 (as we know it today) turned 18 years old. Children who were in the womb when RFC 2460 was being drafted are now old enough to vote, get married, and purchase firearms in some states.

In honor of IPv6’s 18th birthday, allow me to …

Forget using scripts and group policies to configure a new Windows Server machine. Using Chocolatey and Puppet, you can do it faster & easier than ever (and it’s more fun too). This is especially true if you’re using a Server Core installation and don’t have a GUI to help you along. Oh, and if you don’t know …

I recently ran into a bizarre issue with users not being able to launch applications from a very old Citrix Presentation Server 4.0 farm when trying to launch from Citrix Web Interface 5.4. They were getting the eminently unhelpful, “An error occurred while making the requested connection.”

The Diagnosis

In the web …