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A method in Java (called a "function" in many other programming languages) is a portion of code that's been grouped together and labeled for reuse. Methods are useful because they allow you to perform the same action or series of actions without rewriting the same code, which not only means less work for you, it means less code to maintain and debug when something goes wrong.

PostgreSQL is a free and open-source database management system focusing on extensibility and SQL compliance. This tutorial will guide you through installing the latest PostgreSQL 15 on a Rocky Linux 9 server. This also guides you through the basic usage of PostgreSQL for creating users/roles, managing databases, creating tables, insert and retrieving data.

This tutorial will cover how to block certain packages from being installed or upgraded and how to block specific versions of packages or kernels from being installed. We will discuss two methods here. The first method will block all installs and upgrades for a certain package. The second method offers more granular control, allowing you to block specific package versions.

New Budgie and Sway spins, Xfce 4.18, and initial support for Unified Kernel Images. A Fedora Project meeting this week is starting to set the shape of the next release, Fedora 38, due in April.…

Maintainers are an important topic of discussion. I’ve read a few perspectives, but I’d like to share mine as one of the lesser-known maintainers in the open source world. Who am I, and what do I do? I have many job titles and, in many ways, wear many hats. I’m the “architect” […]

The biggest barrier to growth and innovation is a stagnant data platform. Legacy proprietary systems aren't technically viable for most enterprises anymore. The enhanced capabilities of adopting a cloud-centric, open source approach to database management systems are critical to thriving in today's business landscape.

osTicket is a free and open-source support ticket system used to scale and streamline your customer service and improve your customer experience. This tutorial will show you how to install osTicket on Debian 11.

Open source reimplementation could be even better than the original in its prime Haiku is an open source OS with a few differences. The big one is that it's not a Unix. The next is that it's pretty close to being a realistic, usable alternative OS for ordinary, everyday use.…

Dolibarr is an open-source ERP and CRM system written in PHP. It is designed for small and medium businesses to manage customers, invoices, orders, products, inventories, etc.

Varnish Cache is an open-source, powerful, and one of the most popular HTTP accelerators used by over 3.4 million websites. This post will show you how to install the Varnish Cache with Apache on Debian 11.

The Rust programming language has been adopted by hundreds of big companies in production environments. This tutorial will guide you through installing Rust Programming Language on a Ubuntu 22.04 machine.

Strings are one of the most common data types you will use in MySQL. Many users insert and read strings in their databases without thinking too much about them. This article aims to give you a bit of a deep dive into how MySQL stores and displays your string variables so that you can have better control over your data.

Raspberry Pi just launched four variants of camera modules based on the Sony IMX708 12MP sensor with HDR and autofocus. The new Camera Module 3 is also available in Wide and NoIR variants to target different applications. According to the product brief, all these modules feature a back-illuminated and stacked CMOS 12MP Sony IMX708 sensor. […]

Wireguard is a free and open-source VPN protocol alternative to IPSec, IKEv2, and OpenVPN. Wiruguard is designed for Linux and Unix operating systems, it runs on Linux kernel space, which makes the Wireguard faster and more reliable. In this tutorial, you will install and set up a VPN server via Wireguard on Debian 11 servers.

JupyterLab is a next-generation web-based development environment for Project Jupyter. Project Jupyter was developed with the goal to develop open-source, open standards, and services for interactive computing across multiple programming languages.

OpenSearch is Amazon’s open-source search engine and analytics suite. Individuals, businesses, and organizations can use the service to search for a wide range of information and use visualization tools to better understand user behavior and search trends. This article will discuss how you can use OpenSearch in Fedora Linux. Prerequisites A Linux Distribution (Fedora OS) […]

phpBB is free and open-source forum software that provides a space for people to gather and communicate with each other. It is written in PHP and uses MariaDB as a database backend.

Strapi is an open-source, headless Content Management System (CMS) built with JavaScript (NodeJS). In this tutorial, you will learn how to install the community version of Strapi CMS on a Ubuntu 22.04 server, along with Nginx as a reverse proxy server.

We buzz around new version of the other-other-other FOSS-xNix-that-isn't-Linux. Dragonfly BSD 6.4 is here, with various updates and new features, including a better hypervisor, improved support for AMD GPUs, and more.…

Gathering data as it changes over the passage of time is known as time-series data. Today, it has become a part of every industry and ecosystem. It is a large part of the growing IoT sector and will become a larger part of everyday people's lives. But time-series data and its requirements are hard to work with. This is because there are no tools that are purpose-built to work with time-series data. In this article, I go into detail about those problems and how InfluxData has been working to solve them for the past 10 years.