Install PowerShell on Offline and Restricted Networks
How to install PowerShell and modules on connected machines and offline or restricted networks.
Security
PowerShell Security Notes: Elevation, Firewall Rules, and Unblocking Files
PowerShell security notes for elevation, Windows Defender Firewall rules, and safely unblocking downloaded files.
PowerShell Remoting with WinRM and SSH
How to choose between WinRM and SSH for PowerShell remoting on Windows, Linux, and mixed environments.
Is That Port Open? Test-NetConnection vs Telnet vs PortQry
How to check whether a TCP port is open, blocked, or unreachable using PowerShell, Telnet, and PortQry.