Category: Linux and UNIX

Many organizations use cloud services. Many deploy network services as containers. And now, many are combining the two. Let’s look at the advantages of running containers in the cloud. Isn’t This Virtualization on Top of Virtualization? Yes! It has to be. There is no way to do what is defined as cloud computing without virtualization! […]

In my last post, I wrote about the benefits of U2F – Universal Two-Factor Authentication. Here are the three phases of installing it as the second factor on a Linux VM. For this article, I assume you have a Linux VM (or computer) configured with access to a USB port. I did this more as […]

“I own many CDs”, the Sphinx said. “I listen to music all the time. But I never play my CDs. What is happening?” That’s easy, a minor-league Sphinx question at best. She ripped her CDs. She used software to read the audio data, convert it to a compressed format, and store the songs as files […]

Back in April, I explained the new network interface names. Instead of eth0 it’s something like enp0s4 or p7p1. Let’s see how to check the settings. Run these commands on your system and play along! Physical Devices First, what are the network class devices? This system has two Ethernet interfaces: $ ls -l /sys/class/net total […]

In the previous blog, we looked at some of the annoyances encountered when installing RODBC on Linux. Of course, RODBC can also be used in R running on Windows. In either case, running queries using RODBC is straightforward and without surprises. As is always the case, the first thing we need to do is connect. […]