Creating a lock file (say, in /tmp) is a common approach. On launch, check to see if the file already exists. If it does, exit. Otherwise, create it and continue. This can lead to problems if your app ...

The Linux operating system is powerful and flexible, able to run in several different modes of operation called run levels. When a Linux system starts, a function called "init" is used to configure ...

Everyone's heard the term, but what exactly are containers? The software enabling this technology comes in many forms, with Docker as the most popular. The recent rise in popularity of container ...