System Administration & Configuration

How to setup AMule and control it...

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. In...
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Programming & Scripting

How to Reuse PHP Code Effectively -...

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...
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Ubuntu

How to install Chef Server,...

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...
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CentOS

How to check CentOS version

There are several ways on how to check what version of CentOS is running on your system. The simplest way to check for the CentOS version number is to execute the cat /etc/centos-release command. Identifying the accurate CentOS version may be required to help you or your support team to troubleshoot your CentOS system. The CentOS version consists of three release versions as illustrated below: The CentOS version...
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Debian

How to Use UFW on Debian 10 Buster...

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. In this tutorial you will learn: How to Install UFW How to Set the Defaults on UFW How to Allow Ports How to Allow Interfaces How to Allow Protocol...
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Kali Linux

How to install VeraCrypt on Kali Linux

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...
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Redhat

How to install VMware Tools on RHEL...

When speaking of virtualization, VMware is a solution that can't be ignored. While the true power of virtualization lives in the datacenters, we live in the age where anyone can run a virtual machine or two on a desktop or a laptop, given it is equipped with enough resources. These virtual machines are computers running inside a computer, and this setup has countless benefits and use cases. For instance, if you...
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Fedora

How to compile vanilla Linux kernel...

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,...
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