As IT-Service-Commander, I now offer professional video conferencing solutions tailored for companies. Many businesses still rely on US providers like Zoom or Teams – which comes with risks regarding data protection and dependency. My solution: GDPR-compliant, hosted on German servers, and easy to use.
The system is based on the proven open-source platform Jitsi – transparent, reliable, and independent. Whether for small team meetings, webinars, or large-scale online events: I provide a solution customized to your company’s size and requirements.
🤝 My service for you:
Personal consultation & setup
Training and ongoing support
Flexible packages with transparent pricing
This gives you full control over your data, reliable technology, and a future-proof communication solution.
Let’s be honest: Do you really want to hand over your sensitive data blindly to a corporation like Microsoft? I don’t. And that’s exactly why I keep advising my clients not to fall into the dependency trap of Microsoft Cloud.
🔒 Control Instead of Dependence
In Microsoft Cloud, it’s not you but Microsoft who decides what happens with your data, where it’s stored, and which features will still be available tomorrow. Once you’re locked into this ecosystem, it becomes very hard to get out. That’s what I call vendor lock-in – and it’s not a technical feature, but an economic trap.
⚡ Your Own Cloud – Faster Than You Think
Many believe running their own cloud is complicated, expensive, and slow. The truth is just the opposite:
With modern open-source solutions, I can set up a high-performance cloud environment for you in no time.
A VPN server ensures secure access from anywhere.
Your own cloud server takes care of data storage – and you remain in full control.
The result: super fast, flexible, and free from artificial limitations.
🛠️ Multiple Paths to Success
There isn’t just one way to do it – there are several great options that can be tailored to your needs:
Nextcloud: One of the most popular open-source platforms for files, calendars, contacts, and more.
Synology DiskStation: Ready-to-use hardware solutions with built-in cloud software, easy to administer.
Whether you prefer maximum flexibility or a convenient turnkey package – both are possible, without falling into Microsoft’s grip.
💡 Why It’s Better
No license fees: Stop paying monthly for unused accounts.
Full data sovereignty: Your data stays where it belongs – with you.
Transparency: Open solutions, no black box.
Flexibility: Adapted to your business, not to a corporation’s rules.
🚀 My Offer to You
As an IT service provider, I specialize in freeing companies from the Microsoft Cloud straitjacket and setting up powerful alternatives. You don’t need to understand the hardware or software in detail – I take care of the setup, security, and operation.
👉 The result: Your own cloud. Independent, fast, and secure.
As an IT consultant, I see every day how important secure and private messaging is. Signal does a great job and is rightly considered one of the most secure messengers ✅ – but Molly puts even more emphasis on privacy and control.
What’s especially interesting: On GrapheneOS, Molly is available by default, as it is recommended there as a trusted messenger. But you can also use Molly on any other Android system by simply installing the APK manually.
Why Molly?
Molly is based on the Signal protocol but adds additional security features such as encryption at rest (encrypting locally stored data).
Other advantages include:
Open-Source – transparent and verifiable.
More control – option to use your own push infrastructure.
Optimized for privacy – especially in combination with GrapheneOS.
Go to Settings → Notifications → Push Notifications.
Select “Unified Push” ? as the push service.
Scan the QR code from my website.
This way, your push notifications don’t run through third-party servers but through your own infrastructure ?️ – a clear advantage for privacy.
Conclusion
Signal is already excellent ✅ – but Molly is the even more privacy-focused choice. On GrapheneOS, Molly comes preinstalled, and on any other Android system it can easily be installed manually.
I personally use Molly every day – not just as a messenger, but as part of a holistic privacy strategy.
As an IT service provider, I wanted to see for myself: running my own mail server – fully under my control, without depending on external providers. For this, I use Mailcow, an open-source mail server suite running on a dedicated VPS at Hetzner. Everything is secured, regularly patched, and equipped with anti-spam mechanisms. So far, so good – or so I thought.
What Actually Happens When an Email Is Sent?
When you send an email, several technical steps happen in the background:
Connection Between Servers Your mail server accepts the message and connects to the target mail server – for example, Microsoft, Yahoo, GMX, Web.de, or Telekom.
Identity and Security Checks Before the email is accepted, the receiving server checks:
Reverse DNS – Does the IP address match the hostname?
SPF, DKIM, DMARC – Do the authentication records match?
Reputation – Is the sending server known as trustworthy or as a spam source?
Acceptance or Rejection If the server fails these checks, the result is ❌ “554 – Bad reputation” or a similar error message.
My Problem with Telekom
While Google, GMX, Web.de, and Yahoo accepted my emails without complaint, Telekom blocked everything coming from my server. The reason: my IP address had been “inactive for a long time” and therefore had no reputation. For security reasons, Telekom does not accept such senders until they are reviewed – a protection mechanism for their customers.
In practice, this meant that even perfectly configured emails with all standards in place were rejected until I contacted Telekom directly.
✅ The Path to Getting Whitelisted
After a friendly but very technical exchange with Telekom’s Email Engineering team, the following requirements became clear:
The hostname of my server had to clearly identify me as the operator.
A publicly accessible contact option (phone number, legal notice) had to be linked directly to the sending domain.
The server could not be a shared host – only I am allowed to send emails from this IP.
Abuse protection (rate limits, account blocking for spam) had to be active.
I adjusted the configuration, redirected my domain cmdsrv.de directly to my legal notice page, and confirmed all required points. Shortly afterward, I received confirmation from Telekom that my IP reputation would be reset:
“We will arrange for the reputation of this IP number to be reset in our systems. (Please note that depending on system load, it may take up to 24 hours for the change to take effect, but experience shows that this is usually done within one to two hours.)”
DMARC Reports – A Must for Admins
In addition to SPF, DKIM, and a clean reputation, as a mail server operator you should regularly evaluate DMARC reports. These reports are automatically sent by many providers if you create a Postmaster address and set the appropriate DMARC entry in your DNS records.
A and MX records are correct and point to the server
Website legal notice/contact page linked with sending domain
Reputation & Testing
IP address not on blacklists
Passed tests with Google, Microsoft, Telekom, GMX/Web.de
Mail test score at least 9/10
Operation & Monitoring
Spam and virus protection active
Rate limits for outgoing mail
Log monitoring & alerts for unusual activity
Regular backups of mail server configuration and mailboxes
Networking with Other IT Administrators If you need support or want to exchange ideas with other admins facing similar problems, you’re welcome to join my Matrix Support Groups. Here I’m happy to help with questions about mail servers, networking, and IT security: https://it-service-commander.de/en/support-3/groups/
As your trusted IT service provider, I am now pleased to offer not only traditional IT services but also professional web hosting for your online presence.
What can you expect?
With my web hosting service, you will receive:
✅ WordPress websites – customized to your individual needs. ✅ Your own domain & email address – e.g. max.mustermann@your-domain.com. ✅ Worry-free package – I handle the setup, maintenance, and security for you.
For more details, please visit my website under: ➡️ Private Clients => Homepage/Website or ➡️ Businesses => Website.
Technically up to date
Your WordPress site runs in a modern Docker container and is hosted on a virtual private server (VPS). This ensures high flexibility and performance.
Security and backups:
Nightly automatic backups of your entire website (including Docker container) are performed.
Your emails are managed on a separate VPS using the reliable Mailcow software, enabling you to send and receive emails with your own domain and personalized addresses.
Professional management included
As your IT service provider, I take care of the complete administration and monitoring of your web hosting:
Regular security updates, including for WordPress and installed plugins. Monitoring to ensure your website is always online. Prompt assistance, should any issues arise.
Interested?
If you would like to host a new website affordably through me or move an existing WordPress installation, feel free to get in touch. ✉️ I will be happy to advise you individually and find the perfect solution for your project.
In an age where data privacy is increasingly important, it’s essential to be aware of your digital footprint. Messaging apps like WhatsApp, operated by Meta (formerly Facebook), collect a wide range of metadata — even though message content is end-to-end encrypted.
Fortunately, there’s a solution for anyone who wants to continue using WhatsApp without exposing their connection details: my free WhatsApp Proxy Service!
What Does My WhatsApp Proxy Do?
My WhatsApp proxy service acts as an intermediary between your device and WhatsApp’s servers. Instead of connecting directly to Meta’s servers, your data traffic is routed through my proxy. This means:
✉️ Hidden IP Address: WhatsApp (i.e., Meta) no longer sees your real IP address, preventing them from determining your location or internet provider.
✔️ No Geo-Tracking: The detour via proxy makes it nearly impossible to track your location.
✔️ Encrypted Communication: All data is transmitted using SSL encryption.
⛔️ Minimal Metadata: Information about your device, region, or connection time is significantly reduced.
✔️ Free and Anonymous: The service is completely free and requires no registration.
How to Set Up the WhatsApp Proxy
Open WhatsApp and tap the three dots in the top right corner (⋮).
Navigate to Settings > Storage and Data > Proxy.
Enable Use Proxy.
Tap on Set up Proxy and enter the following details:
Proxy Host:whatsapp.it-service-commander.de or alternatively 128.140.60.104
Chat Port:7001
Media Port:7007
Confirm by tapping the check mark ✅.
It should now display “Connected”.
And that’s it — you’re securely connected via my proxy! ?
Why Using a WhatsApp Proxy Makes Sense ❓
Meta makes its money through ads and analytics — not just by what you write, but by tracking when, where, how, and with whom you communicate. Even without accessing your message content, Meta knows when you’re online, who you’re chatting with, and from where.
Conclusion ✅
My WhatsApp Proxy Service offers a simple, effective tool to enhance your digital privacy. No registration, no fees — just real benefits:
⭐ More privacy, less surveillance.
Try it out yourself and feel free to share this information with others who value digital self-determination.
I am an IT specialist focused on networks and server services. I am happy to assist with technical questions or custom requirements. Feel free to get in touch — inquiries are always welcome.
In a time when data protection, digital sovereignty, and cost control are more important than ever, many companies are looking for a real alternative to Microsoft Teams. As an IT service provider, I offer exactly that: a powerful, modern communication solution – based on the Matrix protocol and the open-source Element interface.
? What is Element – and what is Matrix?
Element X / Element Web is the front-end interface for messaging, file sharing, and video conferencing – available on laptops, smartphones, and tablets.
Matrix Synapse is the backend – it runs on your own server and handles secure, decentralized communication.
?️ Full control over your data – no dependency on Microsoft
With my solution, every company runs its own communication server in a German data center. This ensures that every message, file, and call stays in-house – without being routed through U.S.-based platforms or global cloud infrastructures.
? No data transfer to the USA ? No Microsoft accounts or licenses required ?? Server location: Germany – fully GDPR compliant ✅ 100% independence from U.S. corporations
Everything modern teams need
? One-on-one and group messaging
? Secure file sharing
? Voice and video calls
? Cross-platform usage (laptop, phone, tablet)
?️ Structured rooms for teams and projects
? Trusted by military and governments
Matrix and Element are already in use by various military and public-sector organizations: The U.S. Navy uses Matrix on multiple ships for secure internal communication. The German Bundeswehr operates its own Matrix-based messenger (BwMessenger). Governments in France, Luxembourg, Sweden, and the German healthcare sector also rely on Matrix for secure, sovereign communication.
This is all provided on a secure, open-source foundation – flexible, transparent, and future-ready.
? Clear savings – year after year
Compared to Microsoft Teams, a company with 20 employees can save up to $1000 per year – while keeping full control over all internal communication and data.
?️ My offer to you
Setup and operation of your own Matrix instance
Deployment of Element Web / Element X as the user interface
Ongoing maintenance, security updates, and technical support
GDPR-compliant configuration
Optional: onboarding and training for your team
✅ Conclusion
With Matrix and Element, you gain a professional, secure, and cost-effective communication platform – without Microsoft, without data leakage, and without vendor lock-in.
? I’m happy to provide a custom quote tailored to your company size and needs. Independent. Secure. Future-proof. – Your new communication solution.
In today’s highly digital business environment, the availability of your IT systems is a critical success factor. Whether it’s an online store, customer portal, or internal tool – system outages can lead not only to lost revenue, but also to damaged customer trust.
Reliable monitoring of your servers and services is therefore essential. Two tools that have proven particularly effective are Uptime Kuma and NTFY. Combined, they provide a simple and powerful solution to detect disruptions early – and respond immediately. ⚡
❗ Why Is This So Important for Businesses?
Outages happen. Whether due to maintenance, technical failure, or network issues – reaction time is key. If you’re notified the moment a service goes offline, you can step in quickly and minimize downtime. ⏱️
Small and medium-sized businesses in particular benefit from not having to wait for customer complaints. Instead, you stay proactive and in control. This improves service quality, saves valuable time, and protects your reputation. ✅
? What Do Uptime Kuma and NTFY Actually Do?
? Uptime Kuma continuously monitors your web servers, databases, and other services. It instantly detects if something is no longer working.
? NTFY sends push notifications to your smartphone or desktop the moment an issue is detected – without the complexity of email servers or SMS gateways.
This keeps your team informed – even outside of working hours. ?
? Key Benefits at a Glance
? Early Detection of Outages No more surprises: you’ll know the moment something goes wrong.
⚙️ Quick Response Time Push notifications help you act fast – when every minute counts.
? Simple Integration Both tools can be installed on a virtual server with minimal setup.
? Cost-Effective Both are open-source – no license fees or subscriptions required.
❗There are no disadvantages
✅ Conclusion
Together, Uptime Kuma and NTFY offer a lightweight and highly effective way to monitor your IT infrastructure. They boost your ability to respond quickly to issues, enhance your customer service, and give you peace of mind – knowing your systems are being watched. ?️
Especially for businesses without large IT departments, this solution is ideal: flexible, low-maintenance, and easy to expand.
? If you’d like help setting it up or want a custom monitoring solution tailored to your needs, I’m happy to assist.
Remote access software is an essential tool in modern IT—whether for technical support, remote work, or quick computer assistance. While commercial solutions like TeamViewer and AnyDesk are well-known, today I would like to introduce you to a more privacy-conscious and cost-free alternative: RustDesk.
?️ What Is RustDesk?
RustDesk is an open-source remote desktop software that offers high performance, ease of use, and full control over data traffic. It is cross-platform—available for Windows, macOS, Linux, Android, and iOS—and especially well-suited for data-sensitive environments.
? Your Data – Your Choice: Advantages Over TeamViewer & AnyDesk
? 1. Host Your Own Server for Full Data Sovereignty
Unlike commercial providers, RustDesk allows you to host your own infrastructure. This means all connection traffic stays under your control—without being routed through external servers.
? 2. No Hidden Licensing Costs
RustDesk is completely free to use—even for commercial purposes. There are no limitations on the number of devices, connections, or support hours. You reduce IT costs without sacrificing features.
? 3. Fast Setup and Modern Technology
The software is written in the programming language Rust, known for its performance and safety. Installation is simple, resource usage is minimal, and connection speeds are excellent.
? 4. Open Source Creates Trust
Unlike proprietary systems like TeamViewer or AnyDesk, RustDesk offers full transparency with open-source code. Security risks or privacy concerns can be audited publicly—a decisive advantage for businesses, government organizations, and privacy-conscious individuals.
?? My Service: Secure IT Support with RustDesk
As an IT service provider, I support individuals and businesses with a tailored, privacy-compliant remote support solution based on RustDesk. By using a dedicated server infrastructure, I can provide you with secure connections that meet the highest privacy and compliance standards—without any data being routed through third parties.
? Want to Host It Yourself? No Problem – Here’s My Tutorial
If you want to set up your own RustDesk server, I’ve created a detailed, step-by-step tutorial to walk you through the process: ? Set Up RustDesk on a Linux Server Using Docker-Compose In this guide, I explain how to run your own self-hosted remote desktop solution quickly and reliably.
? Why Open Source Matters More Than Ever
In an age where digital sovereignty and data protection are constantly under threat, free and open-source software like RustDesk provides a real alternative. You decide how and where your data is processed—without dependence on external vendors or restrictive licensing models.
✅ Conclusion: RustDesk Offers You Security, Freedom, and Control
RustDesk combines security, flexibility, and cost-efficiency in a modern remote access solution. As free software, it gives you back control—over your infrastructure, your data, and your IT operations.
? Do you have questions or need expert support? I’m happy to help you implement a secure and customized solution—without compromise.
Over the past few weeks, I’ve been diving into ElementCall and ElementX – two exciting projects in the Matrix ecosystem that push decentralized communication even further.
? ElementCall enables secure, peer-to-peer video calls using the Matrix protocol – built on top of LiveKit. ? ElementX is a next-generation Matrix client – fast, lightweight, and built with modern architecture.
? New Tutorial Available! I’ve written a step-by-step tutorial on how to integrate ElementCall (with LiveKit and JWT authentication) as an addon to an existing Matrix Synapse installation running in Docker.
? This makes it easy to upgrade your Matrix setup with full-featured video calling – fully self-hosted and privacy-respecting.
