HOWTOs

Stunnel Security for Oracle

Oracle has integrated modern Transport Layer Security (TLS) network encryption into its eponymous database product, and TLS usage no longer requires the Advanced Security option beginning with the 10.2 database release. more>>

Parsing an RSS News Feed with a Bash Script

I am involved in several free software projects, including one or two where I maintain the website. For one of those projects, we currently are updating the website. more>>

Managing Linux Using Puppet

At some point, you probably have installed or configured a piece of software on a server or desktop PC. Since you read Linux Journal, you've probably done a lot of this, as well as developed a range of glue shell scripts, Perl snippets and cron jobs. more>>

Client-Side Performance

In past articles, I've covered different ways to understand, analyze and improve the performance of your web applications. I've shown that between your network connections, server hardware, database design and HTTP server configuration, you can change and improve the performance of your web application—well, sort of. more>>

Profiles and RC Files

I love Linux, and if you're reading this, chances are you do too. To be honest though, some aspects of the Linux environment are confusing. Near the top of the list for me is the profile system. more>>

Infinite BusyBox with systemd

Lightweight virtual containers with PID 1.

In this article, I demonstrate a method to build one Linux system within another using the latest utilities within the systemd suite of management tools. The guest OS container design focuses upon BusyBox and Dropbear for the userspace system utilities, but I also work through methods for running more general application software so the containers are actually useful. more>>

Raspi-Sump

In June 2013, we had the unfortunate luck of a basement flood, caused by a tripped electrical breaker connected to our sump pump. There are so many things that can go wrong with a sump pump. You always are on guard for power outages, blown breakers, sump pump failures, clogged pipes and all manner of issues that can arise, which ultimately can end with a flooded basement. more>>

Tails above the Rest, Part II

Now that you have Tails installed, let's start using it. more>>

Tails logo

Tails above the Rest: the Installation

A few columns ago, I started a series aimed at helping everyone improve their privacy and security on the Internet. The first column in this series was an updated version of a Tor column I wrote a few years ago. more>>

Super Pi Brothers

I don't game as much as I used to. Although I've certainly spent countless hours of my life in front of a Nintendo, SNES, or after that, playing a first-person shooter on my computer (Linux only, thank you), these days, my free time tends to go toward one of the many nongaming hobbies I've accumulated. more>>

Debugging Web Sites

I know, I'm in the middle of a series of columns about how to work with ImageMagick on the command line, but when other things arise, well, I imagine that a lot of you are somehow involved in the management of servers or systems, so you all understand firefighting. more>>

BirdCam, Round Two

In the October 2013 issue, I described the hardware and software I used to create my "BirdTopia Monitoring Station", more commonly called BirdCam. If you've been visiting BirdCam recently, which a surprising number of folks have been doing, you'll notice quite a few changes (Figure 1). In this article, I describe the upgrades, the changes and some of the challenges along the way. more>>

Command-Line Cloud: gcalcli

If you follow my columns in Linux Journal, you probably are aware that I'm a big fan of the command line. When it comes to getting things done efficiently, most of the time the command line can't be beat. more>>

Image Manipulation with ImageMagick

I've spent a lot of time in my column talking about text processing and analysis, with the basic assumption that if you're using the command line, you're focused on text. more>>

Encrypting Your Cat Photos

The truth is, I really don't have anything on my hard drive that I would be upset over someone seeing. I have some cat photos. I have a few text files with ideas for future books and/or short stories, and a couple half-written starts to NaNoWriMo novels. It would be easy to say that there's no point encrypting my hard drive, because I have nothing to hide. more>>

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