5 open source alternatives to Microsoft Exchange

For decades, Microsoft Exchange has ruled the market for email and groupware services. This top dog dominates the corporate world, and the omnipresent Outlook mail client has become the de facto standard for groupware. Since Exchange is closely integrated with Microsoft's Office products, users have access to a wide variety of productivity software and features, whether they're using a desktop or a mobile client.Learn more

How to watermark a UTF-8 plain text file

Watermarking plain text isn't easy. Plain text files don't have headers (or magic numbers), and although you can insert invisible control characters, those characters may get revealed by text editors and word processors. Learn more

Introduction to Kubernetes | What is Kubernetes

Welcome to the introduction to Kubernetes course. Kubernetes, also known as k8s or kube, is the most popular container Orchestration tool in the industry which is a Google made product. This Kubernetes tutorial consists of series articles on Kubernetes. In the first part, we will be discussing what is Kubernetes and the basic concepts of Kubernetes. Learn more

How to Install and Use acme.sh script to get free SSL Certificates on Linux

There are some popular methods of generating SSL and TLS certificates in Linux. One of the most popular methods of issuing SSL certificates is Let’s encrypt which is a certificate authority that offers free SSL certificates. There is an even easier way to issue the certificate which does not require any dependencies and requirements. The acme.sh script written in Shell makes it easy to generate and install SSL certificates in Linux systems. In this article, we will learn how to install the acme.sh script in the Linux system and how to use it to generate and install SSL certificates.

How to encrypt block devices using LUKS on Linux

Sometimes you may want to encrypt your hard disk so that when someone connects your hard drive to their computer they need to provide user credentials to mount the drive. In Linux, it is possible to encrypt individual block devices. In this article, we will learn how to encrypt block devices in Linux using LUKS. LUKS is the Linux encryption layer that can be used to encrypt the entire root partition, a logical volume, or a specific partition. Learn more

How to Migrate CentOS 7 To AlmaLinux 8: A Step-by-Step Guide

It’s now easier than ever to migrate from CentOS 7 to AlmaLinux 8 thanks to the AlmaLinux project called ELevate. Here’s how to do it. Learn more

How to Install Animated Plymouth in Arch Linux

Plymouth is an application that provides the ability to show a graphical boot animation during the system boot process. For example, if you are familiar with Ubuntu or Linux Mint Plymouth – this is something you see in general during boot process: Learn more

Introduction to Wake On Lan

Wake-on-lan (also known with the “W.O.L” acronym) is a standard ethernet feature which allows a machine to be woken up on the reception of a specific type of network packet (the so called MagicPacket). The main advantage of this feature is that it allows us to keep a machine in a low power consumption state, and be accessed only when needed. In this tutorial we see how to enable the WOL feature on our ethernet card under Linux, and how to send the network packet needed to wake up a machine.Learn more

How To Install Discourse on Ubuntu 20.04

In this tutorial we are going to explain step-by-step instructions on How to install Discourse on Ubuntu 20.04 Also, we will provide you with some useful information about its usage.

Best Games for Linux

Linux can be used for gaming too! In this article, you’ll find out about the best video games you can play on your Linux distro, along with all other info you need to know. You can play these games on any distro, however, there are some specialized distros for gaming, like SteamOS, Ubuntu GamePack, Fedora Games Spin, and more. We’ll feature the best gaming Linux distros in a future article. In this article, we’ll only feature games that can directly be played on Linux, without the need for an emulator or additional software like Wine or PlayOnLinux.

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