You took one of the Cisco CCNP exams. You went to the exam center, sat down, and started the exam. About 2 hours later, you saw the dreaded news appear on the screen: You didn’t pass. I’ve failed certification exams in the past, so I can relate to the facepalm-worthy feeling you get when you realize you dropped a …

Recently I needed a way to copy a certificate file from within a PowerShell session to another Windows machine without opening a nested PowerShell session. But I ran into a little snag along the way: Copy-Item‘s dreaded Access is denied error. Here’s my setup A Windows 10 laptop, from which I’m remoting NC1, a Server …

If you have a home lab and don’t need vCenter, thee ESXi Embedded Host Client gives you web-based access to hidden features of your standalone ESXi host… without having to spin up a real vCenter server. As most everyone knows, the old VMware vSphere C# client has been on its way out for years. One of the things keeping …

After upgrading my Lenovo ThinkPad to Windows 10, I was so pumped. The upgrade went smoothly, all my apps worked, but then I noticed something: some apps had blurry, fuzzy text. Ugly, blurry, fuzzy text on Windows 10: This might not bother some people, but to me it felt like trying to read a wet book with my glasses …

Still not convinced that you should learn Windows PowerShell? A popular conspiracy theory asserts that Russia used some awesome PowerShell tricks to hack the Democratic National Committee and get Donald Trump’s opposition research file. While you shouldn’t (and hopefully won’t) use PowerShell for international …

The pre-release of my new book, Learn Cisco Network Administration in a Month of Lunches, is available from Manning Publications’ early access program. The book is a tutorial designed for beginners who want to learn how to administer Cisco switches and routers. Set aside a portion of your lunch hour every day for a …