System & Network Admin

Did you ever want to use your own domain as a dynamic DNS for your non static IP address? Learn how to do it using a router by Ubiqiti and Cloudflare with this guide

Dynamic DNS allows external clients to connect to your UniFi gateway using a hostname rather than an IP address. This is particularly useful if your UniFi gateway uses a frequently changing  WAN IP...

Learn how to use the Let’s Encrypt client to generate RSA certificates and automatically configure NGINX to use the newly issued certificates.

Let's Encrypt is a certificate authority that provides free SSL certificates for websites. However, it not only offers SSL certificates;

Nginx is a fast and popular web server that can be used as a reverse proxy and load balancer for your servers. In this tutorial, we will show you how ...

There it is. The final instalment. Over the course of this series, we've built a very useful Rust web service that shows us colored ASCII art cats, and we've packaged it with ...

The Nix package collection (Nixpkgs) is a powerful tool to ensure the continued growth, transparency and resilience of open source software.

Introduction

Users can point and click at an array of sources to quickly glean which users have access to which data assets.

Once you install Debian to function as a server, you might notice it's missing something important--sudo. Jack Wallen walks you through the process of installing sudo and enabling it for user.

Webhooks are a bit of a wild west in the tech space, and different than REST APIs. So, how do we document them? Here are some tips.

Adventures in making stuff with Daniel Higginbotham

In case the server has sufficient RAM or doesn't require the use of a swap or the swapping decreases system performance, you should consider disabling the swap.

Psensor is a GTK+-based application software that is used to monitor hardware temperature and plot Real-Time graphs from the obtained data for quick review.

This article provides a few command-line tips on how you can delete a large directory that contains thousands of files in a Linux system.

OTEL tracing can collect detailed data on request execution and provide visibility into the entire system. By catching performance issues early on, it can improve the user experience and reduce the risk of application failures.

iperf3 is a free open source, cross-platform command line based program for performing real time network throughput measurements between servers in Linux.

The Text Processing Commands are a set of built-in commands that are used to manipulate text. The commands allow users to quickly and efficiently search, modify, and extract data from text files.

PDF is one of the most popular file formats, mainly due to its unified standard across platforms and devices, compatibility, and small size.

Here's how to deploy an instance of the Bitwarden password manager server on your own server, using Docker.

A comprehensive comparison of API gateways, Kubernetes gateways, and service meshes with actionable insights.

Here are four areas — and their associated open source tools — where developers can better use Dockerfiles and images.

Gus inherited this nice Apple Extended Keyboard II, released in 1990. The keyboard connects using Apple Desktop Bus (ADB) instead of later USB models. Someone on eBay Australia had listed a “…

This open source tool makes it easier than ever to convert Markdown to web pages.