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Proxmox Blog

2025-04-03: Central Windows system on Proxmox for multiple users

A Windows system on Proxmox VE offers companies a practical solution to provide multiple employees with flexible access to a centralized Windows environment. Virtualization with Windows 11 Enterprise or Windows Server 2022 creates a manageable and scalable IT infrastructure.

System Setup

The system is based on a Windows virtual machine in Proxmox. Thanks to Remote Desktop Services (RDS), multiple users can work simultaneously. User management is handled either through Active Directory or local accounts. Security measures such as VPN and firewall policies protect access.

Access Options

Employees can connect to the system from anywhere via Remote Desktop Protocol (RDP), regardless of the device used. Linux computers can also establish a stable connection using tools like Remmina or FreeRDP. This allows even simple, low-performance devices to be used as Windows workstations.

Backup & Security

Automatic backups using the Proxmox Backup Server (PBS) or snapshots ensure reliable data protection. Storage can also be outsourced to a NAS or the cloud. Regular updates keep the system stable and secure.

Installation Service for Businesses

As an IT service provider, I handle the complete setup and configuration of the system – from Proxmox VE and the Windows VM to licensing and the setup of Remote Desktop Services (RDS). I also ensure a secure network configuration and a reliable backup strategy. In addition, I offer support and maintenance to ensure the system runs stably over the long term.

This solution provides businesses with a powerful, secure, and easy-to-maintain IT environment that enables employees to access Windows applications from any location.

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Blog Messenger

2025-03-29: Matrix Synapse and Element X

Secure corporate communication with open source technology

Matrix Synapse is a powerful open source server for the Matrix protocol that enables secure, decentralized and scalable real-time communication. Companies that value data protection, data sovereignty and interoperability can use it to create a powerful alternative to proprietary solutions such as Microsoft Teams, Slack or WhatsApp.

A major advantage of Matrix Synapse is that it can be used completely free of charge. As it is open source software, there are no license fees. Companies can operate the server on their own infrastructure or host it in the cloud without being tied to a specific provider.

In combination with Element X, a modern, fast and user-friendly matrix client, companies receive a secure messaging platform that can be used for both internal communication and for exchanges with external partners. Thanks to end-to-end encryption, all messages and calls are optimally protected. In addition, rooms and group chats can be managed flexibly so that different teams can work together efficiently.

My services as an IT service provider

As an IT service provider, I support companies in the planning, implementation and maintenance of their Matrix and Element-X infrastructure. My services include

  • Consulting and design: Analysis of requirements and creation of a customized solution
  • Installation and configuration: Setting up Matrix Synapse on dedicated servers or in the cloud
  • Support: Introduction to the use of Element X and ongoing technical support
  • Security and maintenance: Regular updates, monitoring and protection against security risks

With my support, companies can make a smooth transition to a data protection-friendly communication platform that gives them maximum control over their own data.

https://github.com/element-hq/synapse

Categories
Blog DNS

2025-03-26: AdGuard Home

AdGuard Home is a powerful open source software for filtering DNS requests. It enables companies to block unwanted or dangerous websites by filtering advertising networks, tracking services and potentially harmful domains at DNS level.

In companies, the use of AdGuard Home offers numerous advantages: It improves network security by blocking phishing and malware domains, reduces distraction from advertising and ensures more efficient bandwidth usage. It also contributes to data protection by preventing tracking requests and thus better protecting sensitive company data. Centralized management and customizability make AdGuard Home an ideal solution for a secure and productive IT environment.

AdGuard Home is open source software and is published under the GPL 3.0 license. This means:

A company can use AdGuard Home free of charge (privately and commercially)

There is no commercial license requirement for using the software.

The source code is open, so companies can adapt it as long as they comply with the license terms (e.g. disclose changes if they are redistributed).

I would be happy to help you operate an AdGuard service in your company network – be it as your ownenständige Maschine oder als Proxmox LXC Container.

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Blog Proxmox

2025-03-23: Virtual servers with Proxmox

Proxmox is free software that can be used to create and manage virtual machines and containers on a server. It is based on the Debian Linux operating system and combines two technologies: KVM for high-performance virtual machines and LXC for lightweight containers.

With Proxmox, you can run multiple virtual systems on a single physical server, use resources efficiently and control everything conveniently via a web-based interface. It also offers practical functions such as live migration (moving running systems to another server), automatic backups and the option of connecting several servers to a cluster to safeguard against failures.

As an IT service provider, I can help you set up your own server with Proxmox and use it efficiently.

This not only saves you the cost of additional hardware, but also makes optimum use of your existing resources. You also benefit from a flexible and easy-to-manage environment in which you can easily create, manage and secure servers. I will assist you with setup, configuration and maintenance to ensure that your system remains reliable and efficient.

Whether for private individuals or companies – I will find an individual solution for you!

Categories
Blog Bitcoin

2025-02-28: UmbrelOS 1.4 released

The popular Umbrel OS, which is also THE software for many Bitcoin nodes, has been updated to version 1.4. The update can be installed immediately.

Attention: The IPv6 network address changes with the update, so that any port releases via the FritzBox must be adapted to the new address. Only then will Umbrel be accessible from outside again.

UmbrelOS 1.4 brings some new features for the personal “home server”:

  • Create, upload and organize files and documents.
  • Share folders over your local network and easily add them as network drives on macOS, Windows, iOS or Android.
  • Set up a shared folder as a Time Machine backup location on macOS.
  • Preview all your photos, videos, PDFs and audio files.
  • Access to app data folders.
  • Support for external (USB) storage for Umbrel Home users.
Categories
Blog Bitcoin

2025-02-22: Security update for the Bitcoin Lightning Node (LND 0.18.5 beta)

Regardless of whether you use UmbrelOS or Start9OS for your own Bitcoin Node. Currently, I strongly recommend that you install the update to LND 0.18.5 beta, as a security vulnerability has been fixed here.

With Bitcoin, you as a company can accept payments in Bitcoin/Lightning independently of banks and credit card companies. Free of charge and in a matter of seconds.

I would be happy to help you develop a Bitcoin strategy for your company so that you are securely positioned for the future. I can also provide technical support and regularly install updates.

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Blog

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Technical articles, completed projects or updates on certain topics are regularly added here.

Have fun reading !