List AD users that haven't logged on in 30 days
Import-Module activedirectory
Get-ADUser -Filter {Enabled -eq $TRUE} -SearchBase $OU -Properties Name,SamAccountName,LastLogonDate | Where {($_.LastLogonDate -lt (Get-Date).AddDays(-30)) -and ($_.LastLogonDate -ne $NULL)} | Sort | Select Name,SamAccountName,LastLogonDate
See if a tcp port is open/blocked/closed
Test-NetConnection -ComputerName COMPUTER_NAME -Port PORT_NUMBER
Set an interface to type public/private/domain
Get-NetConnectionProfile
Name : wtf.local
InterfaceAlias : Internal
InterfaceIndex : 12
NetworkCategory : DomainAuthenticated
IPv4Connectivity : LocalNetwork
IPv6Connectivity : LocalNetwork
Name : Network
InterfaceAlias : Internet
InterfaceIndex : 13
NetworkCategory : Public
IPv4Connectivity : LocalNetwork
IPv6Connectivity : LocalNetwork
Set-NetConnectionProfile -InterfaceIndex 13 -NetworkCategory Private
see what DOMAIN user is logged on to a remote PC
query user /server:$SERVERNAME
#powershell version
$PSVersionTable
#show what software needs upgrading
winget upgrade
#update all software
winget upgrade --all