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UFW is very simple to use and configure. It's available right in the Debian repositories, and it integrates well into a Debian system. The simplified controls and ability to easily start and stop your firewall make in an excellent option for desktops and small servers.

Originally developed by Rasmus Lerdorf in 1994, PHP is one of the most used general-purpose programming languages. Originally born as a template language, during the years it evolved into a fully-featured language with proper OOP (Object Oriented Programming) support. Its latest incarnation, 7.x, introduced new features like return type declaration for functions and huge performance improvements. PHP is a single inheritance language: this means that a class can inherit only for one parent or base class. To overcome this problem a feature was introduced in the language: traits. In this article we will see how to use it and how it works.

AMule is a p2p, open source client for the eD2k network. Released under the GPL license, it supports a lot of platforms and operating systems. In this tutorial we will see how to install a minimal, headless version of AMule on Raspbian "Stretch", the latest version of the official Raspberry Pi OS. We will see how to setup the amule-daemon and adjust the firewall rules in order to control it via web interface.

Chef is a Ruby based configuration management tool used to define infrastructure as code. This enables users to automate the management of many nodes and maintain consistency across those nodes. Recipes declare the desired state for managed nodes and are created on a user’s workstation using the Chef Workstation package. Your recipes are distributed across nodes via a Chef server. A Chef client, installed on each node, is in charge of applying the recipe to its corresponding node. This guide will show you how to install and configure a Chef Server and Chef Workstation. We will also bootstrap a node to manage with Chef.

If you plan on doing any sort of Ruby development, RVM is a must. Even though Debian does have its own Ruby packages, they're bound to Debian's release schedules, making them an inflexible option for your projects. RVM is simple to get set up, and it allows a much greater decree of flexibility, no matter what sort of projects you're working on.

A shell is a crucial part of an Unix-based operating system and is the main interface we can use to interact with the system itself. Bash is without doubt the most used shell on the majority of Linux distributions: it was born as the free software replacement for the Bourne shell (bash is the acronym for Bourne-again shell) inside the GNU project. In this tutorial we will learn how some of the most useful bash expansions works.

Firefox is one of the most used web browser in the world: it's a free and open source software built by the Mozilla foundation, and it's available for all the major operating systems. The browser has all the features that nowadays are considered standard: tabbed browsing, private navigation, a synchronization system and its functionalities can be extended using third party addons written in Javascript. In this tutorial we will see how to create, build and sign a simple web extension.

There are two very simple ways to create a Python virtual environment on Debian 10. They're very similar and offer nearly the same benefits. As an added bonus, you won't need to install anything outside of the default Debian repositories to use them.

If you plan on gaming on Debian, you're going to want Lutris. It's taken the cumbersome process of installing and playing games with Wine and automated everything to a point that makes everything nearly as easy as on Windows. Lutris is available from the developers through a Debian repository, so all you need to do is add it to your system to get started.

The kernel is the most important component of an operating system: among the other things, it provides support for different types of hardware and manages resource allocations. Linux is a monolithic kernel: although its functionalities can be included statically or built and loaded as separate modules, it always runs as a "single piece" in the same address space. In this tutorial we will see how to download, compile and install a vanilla Linux kernel.

Network interface bonding consists in the aggregation of two or more physical network interfaces, called slaves, under one logical interface called master or bond interface. Depending on the bonding mode, such setup can be useful to achieve fault tolerance and/or load balancing. In this tutorial we will learn what the available bonding modes are and how to create a network bonding on Red Hat Enterprise Linux 8.

Having a cluster built out of Raspberry Pi's is not only fun but also eases your work. As we discussed in our latest article in the series you can use the cluster to compile software or make it gather data from various sources on the Internet. There are many uses for such a thing. However, after compiling for an hour straight you might get curious as of how your nodes perform. How they work under load, if they're not under-powered or if the CPU temperature is not rising above desired levels.

Even though the AMD drivers are open source, they still depend on closed binary firmware. Therefore, AMD drivers won't work by default on a Debian system. Installing them is fairly simple, though, and so is installing key software like Vulkan.

This guide will show how to install and configure a DNS Server in RHEL-8 in caching mode only or as single DNS Server, no master-slave configuration. A reverse and forward zone example is provided.

The deb-multimedia repository is an excellent way to get the latest multimedia software on any Debian release. As an added bonus, it comes with a lot more programs that aren't available in the default repositories. In case you were wondering about stability, the repo is owned and maintained by a Debian developer, so everything is stable and compatible.

Minecraft is still a popular game these days. The simplicity of its graphics had an appeal on gamers of all ages and there are many hundreds of thousands of players worldwide, most of them playing on online servers. But did you know you can create your own Minecraft server using RedHat Enterprise Linux 8? Here is a how to teaching you exactly how to do it.

Here is out third article in the Building a Raspberry Pi Cluster series. We will talk about what software we can use to make all the cluster nodes respond to your commands all at once, so that you can install whatever you wish and do it only once for ll of the cluster nodes instead of configuring them one by one as separate entities. Such software greatly eases your work and reduces the time needed to perform operations. It does not matter if you have four, eight or fifty nodes to work with you can make them all do the same thing at the same time.

The PS3 was a great console, and it was home to plenty of awesome games. Keeping an old one around now might seem a little cumbersome. Thankfully, you can play your PS3 games on Linux with the RPCS3 emulator. This guide will walk you through the process of getting set up. Before you continue, please note that RPCS3 is still in Alpha. Expect bugs. That said, you'll still find plenty of games are playable.

There may come a time when that package you want to install in RedHat Linux 8.0 is simply not available as a RPM file. The alternative is to download the source and compile it yourself, or - alternatively - generate a RPM file from that source code later on.

But there is another way. Given the fact that Debian-based distributions have way more users than RPM-based ones, the number of available packages in their repositories is greater. Chances are you will be able to find a DEB file for that package you want. Here is how to install that DEB file in RedHat Linux with the help of a small utility called alien.

Virtualization and emulation software is big these days. With cheaper RAM memory comes the possibility to ditch dual-booting and install several operating systems in QEMU or VMWare and use them alternatively whenever you feel like it. Since Red Hat Enterprise Linux 8.0 is fresh you might want to test it in VMWare before installing it on its own partition. So here is a guide to do just that.