BUSINESS / OPEN SOURCE
EGroupware
CRM, projects, files, email, Kanban and e-invoicing in one platform.
Read the analysis →SILLE-SOLUTIONS / IT RESOURCES
IT solutions.
Tested. Explained.
Practical guides, tools and technical reviews for admins, developers, webmasters and tech enthusiasts.
SELBSTHILFE / HOME IT
Self-Help for Home IT
Practical guides for PC problems, security, data and home networking.
Explore the category →WINDOWS SERVER / HYPER-V
Automate free Hyper-V VM backups
PowerShell, Export-VM and Task Scheduler – a practical backup guide for Microsoft admins.
Read the guide →GUIDE
Running Docker properly on Debian 13 – 15 things administrators should know
Debian 13 “Trixie” is the current stable Debian release
Guide lesen →GUIDE
Windows Server 2025 – what administrators really need to know
Windows Server 2025 improves security, storage, virtualization and hybrid management
Guide lesen →GUIDE
Windows 11 24H2 & Server 2025: SMB signing, NAS problems and legacy shares
Windows 11 24H2 and Windows Server 2025 significantly strengthen SMB security
Guide lesen →GUIDE
Active Directory disaster recovery: the domain controller is dead – now what?
A failed domain controller is unpleasant
Guide lesen →GUIDE
Windows Admin Center explained – servers, Hyper-V and PowerShell in the browser
Windows Admin Center is Microsoft’s browser-based management interface for Windows Server, clients and clusters
Guide lesen →GUIDE
Upgrade Debian 12 to Debian 13 – the complete administrator checklist
Debian 13 “Trixie” is the current stable release
Guide lesen →GUIDE
Linux Server Hardening 2026 – secure Debian 13 properly
A Debian server does not need to be complicated to secure, but the order matters
Guide lesen →GUIDE
Passkeys, FIDO2, TOTP and security keys – MFA for administrators
Not every multi-factor method offers the same phishing resistance
Guide lesen →GUIDE
Ransomware-resistant backups for small businesses – 3-2-1-1-0 explained
A backup that the production server can freely delete is not a very trustworthy backup
Guide lesen →GUIDE
Self-hosting in 2026 – which services are actually worth it
Self-hosting is increasingly practical, but not every service is worth its maintenance cost
Guide lesen →GUIDE
UptimeRobot vs. Uptime Kuma – cloud monitoring or self-hosting?
Two different ways to solve the same problem: UptimeRobot monitors externally from the cloud, while Uptime Kuma runs inside your infrastructure
Guide lesen →GUIDE
25 free tools every Windows administrator should know
Good administration is not limited to Microsoft GUIs
Guide lesen →GUIDE
DNS explained: what really happens when you open a website
DNS looks simple—name in, IP out
Guide lesen →GUIDE
Windows admin meets Linux: 25 commands compared directly
Administrators moving between Windows and Linux do not need to learn two completely unrelated worlds
Guide lesen →FEATURED
Monitoring for your systems
MONITORING
UptimeRobot
Monitor websites, APIs, SSL, DNS, ports and cron jobs — with a free starting point and practical setup guidance.
Read the review →GUIDE
Server monitoring
Which checks actually matter on a Linux server? HTTP, SSH, SSL, DNS, cron jobs and more.
Open guide →FEATURED / CLOUD
DigitalOcean
CLOUD / REVIEW
DigitalOcean
Developer-focused cloud infrastructure: Droplets, Kubernetes, App Platform, managed databases, storage and DevOps.
Read the analysis →TOPICS