THM: Skynet-Room walkthru

This room has took me some time and I noticed that my solution is a little bit different to the other writeups about this room, so feel free to check my solution. First of all we have to check the…

Fix performance problems with VirtualBox

Introduction If you want to use Linux on Windows, a VM is still a good alternative to WSL. Recently I’ve had massive performance problems with my Linux VM’s after installing WSL. Some workarounds are presented below. Symptoms The problems were…

Quickstart with Nessus on Kali Linux      

What is Nessus? Nessus is a vulnerability scanner like OpenVAS. Nessus scans your target for open ports, wrong file permissions, known vulnerabilities, etc. Everythinig is presented in a good-looking and clear GUI with nice additional features like report exporting, different…

Vagrant – A Introduction

What is Vagrant Vagrant is a free tool to create and manage virtual machines. It shorts the process of searching for an OS-Image to install and configure in a single command. Vagrant is very similar to docker but the difference…

Install OpenVAS on Red Hat Linux

A few weeks ago I worte an article for the it-sec blog ceos3c.com. This guide is a step by step manual to install OpenVAS on Red Hat Linux distributions. Many manuals on the internet are not up to date and…

CLI tools to boost up your productivity

To be honest I’m a geek when it comes to productivity. I always try new things to boost it up and make me more productive for the time which I spend with learning or working. Here is a little selection…

How to change default Horde settings (Webmail)

Three years ago I wrote an article for the WebOps hosting platform Plesk. In this guide, we’re going to take a brief look at the Horde webmail application and explore some of the customizations you can make with it. You…