The /etc/fstab file is one of the most important files in a Linux-based system, since it stores static information about filesystems, their mountpoints and mount options. In this tutorial we will learn to know its structure in details, and the syntax we can use to specify each entry in the file. In this tutorial you will learn: How to use the fstab file to provide static filesystem information How the fstab file is...

PHP is a widely used server scripting language. It's vast capabilities and lightweight nature makes it ideal for web frontend developing, and while it is possible to create advanced structures in it, it's basic usage also easy to learn, which makes it a good starting point for beginners also. The data recorded, processed, sent or displayed by the application we build is need to be stored somewhere, however; our...

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...

This article describes a simple way to create a home made debian package and include it into a local package repository. Although we could use an existing Debian/Ubuntu package, we will start from scratch by creating and packaging our own trivial application. Once our package is ready, we will include it into our local package repository. This article illustrates a very simplistic approach, however it may serve as...

For years, TrueCrypt was the gold standard in encrypting drives across platforms. TrueCrypt is gone now, but VeraCrypt is carrying on its legacy. It looks and works a lot like TrueCrypt did, and it's compatible with TrueCrypt partitions. Even though VeraCrypt isn't available in Kali's repositories, but that doesn't mean that it's difficult to install. You can download the VeraCrypt installer right from the...

The hostname of your CentOS 7 Linux is defined by the file /etc/hostname thus setting a new hostname for your system is just a matter of editing this file and replace a current hostname definition line with new one. However, doing so will not update your system;s hostname immediately thus a preferred way of changing a hostname on CentOS 7 Linux is to use nmtui and more specifically its child nmtui-hostname . Using...

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,...