w32tm in Windows: diagnose and fix domain time synchronisation
w32tm is the command line front end to the Windows Time service. It reports where a machine gets its time, how far…
Guides and articles
Practical guides for system administrators - Windows, PowerShell, Active Directory, networking, and infrastructure.
repadmin in Windows: check, read and force Active Directory replication
repadmin is the tool that answers one question no GUI answers quickly: is every domain controller in this forest actually receiving the…
sc Command in Windows: Query and Control Services from CMD
How to use sc.exe to query, configure and control Windows services from the command line: start types, recovery actions, dependencies and remote servers.
tasklist and taskkill in Windows: Find and End Processes from CMD
Resolve a PID to a real process with tasklist, filter by service, session or memory, and end it cleanly with taskkill - including process trees and remote hosts.
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.
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 Kerberos uses to match…
dsquery and dsget in Windows: command-line Active Directory queries
You need to find every disabled user account in the Sales OU, and you are logged on to a Server Core box…
PowerShell scripts in Windows Task Scheduler: why they fail and how to fix it
The script runs fine from your terminal. You create a scheduled task, it fires at the right time - and produces nothing.…
Windows Command Aliases: DOSKEY Macros in CMD and Aliases in PowerShell
If you come from Linux, you expect aliases to just work - type alias ll='ls -la', press Enter, done. Windows has the…
netsh command in Windows
netsh (Network Shell) is a command-line scripting utility built into Windows that lets you configure and inspect virtually every aspect of networking…