Network scanning on Windows usually means installing something or switching to Linux. nmap breaks that assumption — it runs natively on Windows, installs in two minutes, and gives you the same scanning capabilities available on any Linux box. For a…
Every Windows administrator knows ipconfig It is usually the first command run when something on the network stops working. But ipconfig does more than display adapter information — it can flush the DNS cache, force a DHCP lease renewal,…
Checking whether a port is open — on the local machine or on a remote server — comes up in almost every troubleshooting scenario involving services, firewalls, or application connectivity. Windows has two built-in tools for this: netstat in CMD…
When something goes wrong on a Windows machine — a service crash, a failed login, an unexpected reboot — the answer is usually in the Event Log. wevtutil lets you query, filter, export, and clear Event Logs entirely from the…
When a Group Policy setting is not applying as expected — a drive mapping is missing, a software restriction is not enforced, a desktop lockdown is not working — the question is always the same: which GPOs actually applied to…
NTFS permissions control who can read, write, and execute files and folders on Windows. icacls is the command-line tool for viewing and modifying those permissions — without opening File Explorer, without clicking through security dialogs, and without needing a GUI…
Event Viewer is fine for occasional manual checks. It breaks down the moment you need to search across multiple machines, filter by time range, correlate events by ID, or automate any part of the process. Get-WinEvent is the PowerShell cmdlet…
When a port is unreachable, a service is not responding, or something is holding a connection open, netstat is the first command to run. It shows exactly what is listening on which port, which connections are established, which processes own…
Syncing two folders with Robocopy is one of the most common tasks sysadmins use it for – but it is also where the most mistakes happen. The difference between “copy everything” and “mirror exactly” is a single flag, and using…
Git is version control software that tracks changes in files over time. System administrators use it to manage PowerShell scripts, configuration files, infrastructure documentation, and runbooks — anything that changes and needs a history. Without version control, you rely on…
