Caddy is a powerful platform to serve your web applications and services. You can use Caddy as a reverse proxy to forward requests from the Internet to your Node.js application running on your server. This tutorial shows you how to use Caddy as a reverse proxy for your Node. …

Occasionally you need to shut down or reboot your Linux servers. The Linux operating system comes with the built-in shutdown command. This command allows you to power off or reboot a computer. This tutorial shows you how to shut down or reboot a Linux machine. {{outline}} Shutdown Your Ubuntu/Debian …

As a software developer, you’re most likely using SSH keys. Doing system administration or pushing commits to your source control like GitHub or GitLab is considered to be a best practice doing it over SSH with public key authentication instead of passwords. And because you’re doing both in …

Linux comes with the which command to locate a given executable. Executables are commands you type into your terminal, like git, node, touch, or vim. Sometimes, you want to find the location of an executable on your filesystem. That’s where the which command comes handy. Read on to find …

Recently, I provisioned a new Elasticsearch cluster. The installation process on Ubuntu used the apt package manager and everything looked good. I started the application as soon as Elasticsearch booted and was ready for connections. The app connected to the database, everything looked good. Yet, the Elastic SDK failed while …

We ran into the following error when creating Docker-based GitHub Actions: the “standard_init_linux.go:211: exec user process caused „no such file or directory“” Everything worked locally and the Dockerfile looked good as well. Yet, when pushing the code to the build server (in this case GitHub), building …

Ubuntu/Debian — How to Unzip Into a Folder You may download a ZIP file from the Internet and need to unzip it to a specific directory. On Unix and Linux, you can stay in the command line and unzip a packaged ZIP file to the folder of your choice! {{outline} …

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 …