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Practical tools and guides for system administrators

Lightweight tools, cheat sheets and practical guides for everyday infrastructure management,
automation, and troubleshooting tasks.


Tool categories

Encoding tools

Tools for encoding, decoding, and transforming text data.

Data utilities

Utilities for formatting, converting, and validating structured data.

Security tools

Small utilities for hashes, checks, and security-related operations.


Network tools

Tools for quick network diagnostics and infrastructure checks.

DNS tools

Utilities for DNS records, domain lookups, and name resolution tasks.

System Tools

Diagnostic and AI-powered utilities for Windows system analysis.


Latest posts

Guides Sep 2, 2026

How to find and log off RDP sessions in Windows with quser and qwinsta

Use quser, qwinsta and rwinsta to list RDP sessions on a Windows server, spot disconnected ones blocking new logons, and log them off from the command line.

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Active Directory Jul 17, 2026

setspn in Windows: manage Service Principal Names and fix Kerberos SPN conflicts

setspn reads, adds, and deletes Service Principal Names (SPNs) on Active Directory accounts. An SPN is the identifier…

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About this project

Hi, I’m Zaur — a system administrator working mainly with Windows infrastructure, VMware, AWS, automation, and troubleshooting.

This website brings together practical tools, cheat sheets, and technical guides based on real-world infrastructure work.

The goal is simple: help system administrators solve everyday tasks faster.