HOW-TOs

Creating an Internet Radio Station with Icecast and Liquidsoap

Ever wanted to stream prerecorded music or a live event, such as a lecture or concert for an internet audience? With Icecast and Liquidsoap, you can set up a full-featured, flexible internet radio station using free software and open standards. more>>

Sysadmin Tips on Preparing for Vacation

Read on for ways to help reduce the chance that your vacation will be interrupted by sysadmin issues. more>>

Analyze Song Lyrics with a Shell Script, Part II

In my last article, I began exploring song lyrics. Not so you could have an epic Karaoke night, but more in the sense of analyzing song lyrics and word usage therein. more>>

Ansible: the Automation Framework That Thinks Like a Sysadmin

I've written about and trained folks on various DevOps tools through the years, and although they're awesome, it's obvious that most of them are designed from the mind of a developer. There's nothing wrong with that, because approaching configuration management programmatically is the whole point. more>>

Banana Backups

In the September 2016 issue, I wrote an article called "Papa's Got a Brand New NAS" where I described how I replaced my rackmounted gear with a small, low-powered ARM device—the Odroid XU4. more>>

Sysadmin 101: Patch Management

A few articles ago, I started a Sysadmin 101 series to pass down some fundamental knowledge about systems administration that the current generation of junior sysadmins, DevOps engineers or "full stack" developers might not learn otherwise. I had thought that I was done with the series, but then the WannaCry malware came out and exposed some of the poor patch management practices still more>>

Analyzing Song Lyrics

I was reading about the history of The Beatles a few days ago and bumped into an interesting fact. According to the author, The Beatles used the word "love" in their songs more than 160 times. At first I thought, "cool", but the more I thought about it, the more I became skeptical about the figure. In fact, I suspect that the word "love" shows up considerably more than 160 times. more>>

Testing the Waters: How to Perform Internal Phishing Campaigns

Phishing is one of the most dangerous threats to modern computing. Phishing attacks have evolved from sloppily written mass email blasts to targeted attacks designed to fool even the most cautious users. No defense is bulletproof, and most experts agree education and common sense are the best tools to combat the problem. more>>

Live Stream Your Pets with Linux and YouTube!

Anyone who reads Linux Journal knows about my fascination with birdwatching. I've created my own weatherproof video cameras with a Raspberry Pi. I've posted instructions on how to create your own automatically updating camera image page with JavaScript. Heck, I even learned CSS so I could make a mobile-friendly version of BirdCam that filled the screen in landscape mode. more>>

Update Tickets from the Command Line

In the April 2017 issue, I wrote about how to use ticketing systems as a sysadmin to organize your tasks better. more>>

Creating an Application-Based Terminal Session

One of my first exposures to computers in a work environment was using a Wyse terminal to access a console-based application for data entry. It wasn't until a while later that I learned about terminals in UNIX and how they work. Once I understood it, I wanted to create my own self-contained application that was tied to a telnet or SSH session. more>>

Working with YouTube and Extracting Audio

In my last few articles, I've been exploring the capabilities of ImageMagick, showing that just because you're working on a command line doesn't mean you're stuck processing only text. more>>

Novelty and Outlier Detection

In my last few articles, I've looked at a number of ways machine learning can help make predictions. The basic idea is that you create a model using existing data and then ask that model to predict an outcome based on new data. more>>

Tracking Down Blips

In a previous article, I explained the process for setting up Cacti, which is a great program for graphing just about anything. One of the main things I graph is my internet usage. And, it's great information to have, until there is internet activity you can't explain. more>>

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