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Bitcoin Mining

Ever since I wrote that article about bitcoins, a fair number of readers have been asking about mining and general investment into bitcoins. We’re putting together a new article. We hope to review some bitcoin gear in the coming months.

VMware ESXi host fails with PSOD after upgrading to 6.5 Update 1 (2151749)

Just when you thought it was safe to upgrade a Pink Screen of Death (PSoD) is confirmed. If you are thinking of upgrading from 6.5 u2 to update 1 you may want to hold off. This problem has no resolution and was officially documented by VMware on Oct 25, 2017. Symptoms Upgrading to ESXi 6.5…

WiFi WPA2 protocol flaw discovered (Key Reinstallation Attack). What to do.

As we tweeted on Oct 17, 2017, a major WPA2 flaw has been discovered by Mathy Vanhoef of KU Leuven in Belgium. WPA2’s cryptographic protocols could be exploited to read and steal data that should be secure.

Windows 10 Pro Creator’s edition 2017 update breaks VMware Workstation 12 and 12.5 NIC Build 1703

If you read my posts then you know we’re been here before. The Windows 10 Pro update called the Creators Edition released in September 2017 (Build 1703) breaks your VMs running on VMware Workstation pro 12 or 12.5. It is possible that 11 or earlier may have this same problem. Instead of simply sending you…

Crypto Currencies or Gold?

It goes without saying that most people have heard of crypto currencies. Those digital “dollars” based on something called a block chain. Allow me to confess that I didn’t pay much attention to Bitcoin at first. As an IT expert and a writer about the financial markets many are shocked that I didn’t “get it”.…

Estimating the space requirements for a small server room

Small companies relocate all the time. Many companies appear to get stuck improvising rooms to put the equipment and often end up using a closet. In such cases, poor ventilation ends up causing undo stress of the equipment and bringing some devices to a premature end. I saw one switch that looked like it had…