linux

Kali Linux (VirtualBox) instructions for testing any Wi-Fi device against WPA2 Key Reinstallation Attack (KRACK Attack)

The following article demonstrates the process of testing any Wi-Fi capable device against a key reinstallation attack. I’ll demonstrate the processes of executing the test using Kali Linux installed in the VirtualBox on a Windows machine. Then I’ll illustrate the process of testing recently patched Windows 10 as well as testing unpatched Android 7.0 mobile phone against the key Reinstallation Attack. This article also explores a newly discovered vulnerability of WPA2 named KRACK Attack (key reinstallation attack) in little more detail, as it’s one of the biggest vulnerabilities found in WPA2 to this day (patched only by a handful operating systems and Wi-Fi product manufacturers). The main issue introduced by KRACK attack is that it allows attackers to intercept all wirelessly transferred information in an unencrypted format, and do so without the knowledge of the wireless WPA/WPA2 network password. Serious? You bet…
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How to Convert a Remote Physical Linux Server to a Virtual Machine (VMware / VirtualBox Instructions)

Recently I needed to convert my physical CentOS Linux 7.3 server to a virtual image that I can quickly run from either VMware Workstation Player or VirtualBox (or keep as a backup that can be easily switched on as a copy of the physical server). I’ve kept searching the Internet, but only to find that the instructions were either too old or do not provide a proper step by step guide on how to go about this process. Thus the reason for this article, hopefully, it’ll help someone. [Read more…]

What is the best OS for web hosting? (Linux / Windows Server Comparison)

In this article, I’ll describe my personal selection of the top three most important criteria for selecting a server operating system. I’ll compare two competing operating systems, Microsoft Windows Server and Linux (Unix based). Both of these OS’s are capable of functioning as a network server, but for this article, I’ll be referring to a server, whose primary function is that of a web server (a system that is designed to host the websites). [Read more…]

Introduction to Community Enterprise Operating System (CentOS)

The operating system that I use most frequently is Microsoft Windows 7 at work, Microsoft Windows 10 on my desktop at home and Android 6.0 Marshmallow on the smartphone and tablet. However, there is another operating system that I’ve been using for many years and that I rarely get into discussions about, yet over time it’s the operating system that has earned most of my trust. So for this post, instead of concentrating on the well-known Windows operating system, I’ve decided to describe my working experience with the not so commonly recognized CentOS operating system. [Read more…]

Centos 7 and MariaDB/MySQL symbolic links or how to set different locations for databases?

This post outlines how to configure MariaDB or MySQL on Centos 7 in order to store a specific database outside of the typical /var/lib/mysql/DBNAME directory. Or in other words, how you can have each of your databases residing on a different drive (or a different folder on the same drive), while running only a single instance of MariaDB or MySQL. [Read more…]