E-Books

Books released

Some of the books i wrote for CTS GMBH are published by them at DigitalBooks24. I am very interested in your comments and feedback.


CEO and CIO coaching


Zero License costs? It is possible!

Run your IT without any license costs?

Edition 2017-01
Available at DigitalBooks24 here



Anonymous Secure Access to every Device or System and overcome NAT or dynamic IP

The professional way to overcome NAT, IPv4 and Firewalls! Using Open Source Software for Windows, Linux, MAC and Android
Edition 2019-01
Available at DigitalBooks24 here


My own Certificate Authority

Create your own graphical CA for Intranets with Open Source Software for Windows, Linux and MAC
Edition 2017-01

Available at DigitalBooks24 here


FREE SSL CERTIFICATES

Secure your Web server with free Let’s Encrypt Certificates. Guide to fully automate the process of creating and renewing certificates without the need of installing extra software. Script based copy & paste solution for Linux, FreeBSD and Plesk.
Edition 2017-01
Available at DigitalBooks24 here


pfSense

Free, professional Open Source Firewall for the enterprise. Easy understandable for beginners, helpful for professionals.

Edition 2017-01
Available at DigitalBooks24 here


OPENFIRE

Create your own XMPP Messaging Server. Open Source Software – Basic Server Setup Guide

Edition 2017-01<
Available at DigitalBooks24 here


MOSQUITTO

MQTT BROKER FOR IoT (Internet of Things). Guide to setup a free and secure MQTT network using 2 bridged brokers, SSL encryption and cert based authentication.

Edition 2017-01
Available at DigitalBooks24 here


HOME ASSISTANT

Open Source Home Automation Platform for IoT (Internet of Things) & more. The guide shows you how to install and configure Home Assistant using real life examples.

Edition 2017-01
Available at DigitalBooks24 here


DARKNET FOR JOURNALISTS

Learn how to safely visit and use the darknet

Edition 2017-01
Available at DigitalBooks24 here


HOW TO SETUP TOR HIDDEN SERVICES

All needed configuration files included! 100% free Open Source!

Edition 2017-01

Available at DigitalBooks24 here


WORDPRESS PROFI SETUP

Professional setup using a real-life example!

Edition 2017-01

Available at DigitalBooks24 here