How to Configure Linux for U2F Authentication
Oct 12,
2017
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 […]
Take All Your Music To Linux
Sep 21,
2017
“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 […]
Do You Know the New Linux Networking Commands?
Aug 24,
2017
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 […]
Querying SQL Server Data from R Using RODBC
Aug 1,
2017
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. […]
Analyzing SQL Server Data with R and RODBC
Jul 18,
2017
Down the Rabbit Hole with RODBC The most direct method for reading SQL Server data into the statistical program R is with ODBC. If R is running on a Windows system, this is straightforward using the R package RODBC. On a Linux system, the installation of RODBC is more challenging. Of course, RODBC requires a […]