1. Assembly, repair and expansion of electronic equipment:
    • PCs / Laptops
    • Mini-PCs (Raspberry Pi, Orange Pi, ...)
    • Tablets (with Android and iOS)
    • Smartphones (with Android and iOS)
  2. Installation and configuration of operating systems:
    • Windows 10 / 11
    • macOS Monterey / Ventura
    • Android - original and open source
    • iOS
    • Linux Distributions: Ubuntu, Mint, Debian, Kali, Fedora, Manjaro and more.
  3. Consultation and selection of a suitable Internet provider according to the price-performance ratio. (only in Germany)
  4. Network setup and optimization:
    • WAN (Internet access)
    • LAN
    • WLAN
  5. Increase data protection by:
    • Firewall-Configuration
    • DNS over TLS / HTTPS (Settings of clients / server - optional, case-specific)
    • VPN
    • MAC (Mandatory Access Control)
    • Sandboxing (protection against Zero-Day-Exploits)
  6. Installation and setup:
    • Windows Server 2019
    • SAMBA-Server on Linux
    • DNS-Server - BIND 9 also as DoT (DNS over TLS) and DoH (DNS over HTTPS)
    • LAMP - Web-Server
    • CMS - Joomla, WordPress, TYPO3, ...
    • VirtualBox and VMs with Windows, Linux, FreeBSD, macOS (without using iCloud)
  7. Programming and Scripting:
    • UNIX/LINUX Shell - Programming
    • Python - Programming
    • C/C++ - Programming
    • Java - Programming