reg query, reg add and reg export: the Windows registry from the command line
reg.exe is the registry's command line front end, and Microsoft's own registry article for advanced users calls it the Console Registry Tool…
Guides and articles
Practical guides for system administrators - Windows, PowerShell, Active Directory, networking, and infrastructure.
runas and UAC token filtering: why your admin window is not elevated
runas starts a program under a different account than the one you are signed in with. It is the built-in answer to…
dfsutil and dfsdiag: managing and diagnosing DFS Namespaces
dfsutil and dfsdiag are the two command-line tools that come with the DFS Namespaces management feature. dfsutil reads and edits namespace configuration…
diskshadow in Windows: create, expose and delete shadow copies
How to create a persistent VSS shadow copy with diskshadow, expose it as a drive letter, script it in a .dsh file, and delete it without collateral.
Invoke-VMScript: run a script inside a VM without guest networking
Invoke-VMScript is the PowerCLI cmdlet that runs a script inside the guest operating system of a virtual machine. It does not use…
where and Get-Command in Windows: find which binary actually runs
where answers one question: when I type this command, which file on disk actually runs? On a machine that has been in…
whoami /all in Windows: read your access token correctly
whoami does not ask Windows who you are. It prints what is already inside the access token that Windows built for your…
dfsrmig: check SYSVOL replication and migrate FRS to DFSR
dfsrmig is the SYSVOL migration tool. It ships with the DFS Replication service and it does exactly one job: it moves replication…
Grow a Linux disk after extending a VMDK
A hands-on Ubuntu Server lab: extend the VMDK from 60 to 80 GB in vSphere, then grow the partition, the LVM physical volume, the logical volume and the ext4 filesystem, checking every layer as you go.
Connect to a Linux server from Windows
The full path from a Windows workstation to a working Linux session: checking the OpenSSH client, the first connection and the fingerprint prompt, moving to keys, the config file, copying files, and reading the error when it refuses you.