What’s Happening To The CompTIA Security+ Exam?
nov 2,
2016
I recently taught Learning Tree’s CompTIA Security+ test-prep course and a student asked a question I couldn’t answer. This wasn’t a technical question. If it had been, I would have known the answer or else I could have found it. But he asked: ”Look, I do desktop support. I help set up and move desktop […]
certification exams tips and tricks,
CISSP,
Cloud Computing,
CompTIA,
phishing,
ransomware,
security,
SIEM,
SY0-401,
SY0-501,
UEFI,
virtualization
Don’t Fall Behind — Learn About UEFI
dec 8,
2015
I was recently surprised when I found myself CC’ed on a forwarded email from a company marketing itself as a significant provider of cloud computing Infrastructure-as-a-Service (or IaaS). The message, from one of the cloud provider’s engineers to a group mostly comprised of his co-workers, bore what to him had been surprising news: Hey, there's […]
How Does Linux Boot? Part 3: UEFI to Shim to the Next Link in the Chain
dec 31,
2014
Two weeks ago I started explaining how Linux boots. Last week I got as far as the UEFI firmware finding a running a ”shim” program named shim.efi to satisfy the Secure Boot security policy with its digital signature from a trusted signing authority (which, to further discourage the conspiracy theories, is not Microsoft or somehow […]
How Does Linux Boot? Part 2: UEFI Is The New Firmware
dec 30,
2014
It’s amazing that the early 1980s IBM PC design lasted as long as it did. Into the 2000s people relied on its very limited BIOS firmware and MBR partition tables. But now it’s the 2010s and things have finally moved forward. I gave you an overview of how Linux boots. The first steps involve the […]
How Does Linux Boot? There’s More To It Than You Might Expect
dec 29,
2014
With Linux, you can just turn it on, wait a few moments, and start doing powerful things! But if you are going to be responsible for critical systems, you need to know how they are supposed to work so you can recognize and fix problems. At its very simplest, we’re looking at this sequence: Firmware […]