Jan 08

How to counter the Meltdown and specter security flaws

Unless you have been avoiding all news lately, you have no doubt seen or heard countless reports on two security flaws discovered in Intel, AMD and Arm processors. These, combined, affect pretty much everything built in the last 15 years or so. Without going into all the details, reports appear to indicate that the only real fix is a hardware replacement. The hardware fix isn’t available, so patches and fixes are being released to prevent someone from getting access to the process that accidentally leaks data. Continue reading

Dec 20

Nice Hash Security Breach Details – December 17, 2017

Here is the latest information about the breach directly from the Nicehash web site.

The security breach: what happened?
As has been widely reported, NiceHash’s security system was breached in a sophisticated attack in the early morning of 6 December. Our payment system was compromised and the entire contents of the NiceHash bitcoin wallet were stolen – around 4,700 BTC. Our investigation to determine the nature of the attack and its impact is ongoing, with the support of police investigators and a cyber forensic team, and while we want to be as open and transparent as we can, for obvious reasons we can’t provide all the details of the breach. We are very sorry for any inconvenience that the hack may have caused and have committed every resource in response to the issue since we became aware we had been victims of the security breach. Continue reading

Nov 15

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. Continue reading

Nov 08

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 Update 1 produces a PSOD.
  • ESXi host using 10GB NICs

Continue reading

Sep 22

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 back to my old post I thought I would share how to fix this problem quickly.

Summary: The VMs suddenly no longer see the Network Interface Card (NIC) of your computer running Windows 10 Pro. Just to be clear, the VMs can be running any version of Windows and have this issue. The Workstation is running on Windows 10 Pro. Continue reading

Sep 15

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”. I wanted to share with others the “cons” I saw with Bitcoin. Continue reading

Jul 07

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 partially melted on the bottom. The textured plastic was smooth and discolored. Continue reading