Cron jobs are a nice way to automatically run scheduled tasks. The cron service in Linux systems is the typical approach when scheduling commands on the operating system. {{outline}} Testing a Cron Job Recently the certbot from Let’s Encrypt didn’t automatically renew SSL certificates anymore. We used a …

We recently provisioned a new Debian VM and noticed that the sudo command wasn’t available. Our typical workflow includes the sudo command at the beginning of commands. The good news: you can install the sudo command on Debian and give your user the “sudo” permissions. {{outline}} Install the “sudo” …

Running an Ubuntu or Debian operating system on your servers comes with a long lifetime. You won’t switch servers and migrate your applications that often. You’ll maintain your system now and then and update installed packages to keep your system secure. Recently, while maintaining the software on our …

Installing packages with the apt-get package manager on Ubuntu or Debian usually fetches the latest known version from the repositories. This is a comfortable behavior to use an up-to-date version of the package. If you want to install a specific package version, you can do that by appending an equal …

In the previous two tutorials, you've learned how to set up custom fonts on Android the modern way. Either as fixed font style (such as Noto Serif bold) or as font family (such as Noto serif in several weights). However, so far you've only used XML designs to configure app …

In the last tutorial, we've explored the modern way of implementing custom fonts on Android. However, it broke the support for dynamically changing the font style and weights (for example, bold or italic). In this tutorial, we'll fix this drawback and configure a font family with different styles. {{outline}} {{video} …

CoreOS is suited for all kinds of use cases. In the previous blog posts we’ve shown you how to submit and run a Node.js application inside a Docker container on a CoreOS cluster and also how to scale this Node.js app to multiple instances across the cluster. …

This post is a follow up on our tutorial guiding you through the setup on how to submit and run a Node.js app on a CoreOS cluster. Within the previous post, we only showed you how to submit and run a single app instance on a given machine within …