Quick commands (Windows)
Nameresolution via other server than default
nslookup somewhere.com some.dns.server
Get Windows client join status
dsregcmd /status
Get applied GPO status on Windows client
gpresult /h C:\LocalData\GPResult.html
Get RDS license status
(Invoke-WmiMethod -PATH (gwmi -namespace root\cimv2\terminalservices -class win32_terminalservicesetting).__PATH -name GetGracePeriodDays).daysleft
wmic /namespace:\\root\CIMV2\TerminalServices PATH Win32_TerminalServiceSetting WHERE (__CLASS !="") CALL GetGracePeriodDays
Rejoin device to Microsoft Entra ID
dsregcmd /forcerecovery
Delete specific files recursive
$source = "<sourcepath>"
$fileextension = "<filextension>"
get-childitem $source -include *$fileextension | foreach ($_) {remove-item $_.fullname}
Run PowerShell as admin from different session
Start-Process PowerShell -verb runas
Get last reboot time
Get-WmiObject win32_operatingsystem | select csname, @{LABEL='LastBootUpTime';EXPRESSION={$_.ConverttoDateTime($_.lastbootuptime)}}
Set error action in PowerShell session
$erroractionpreference = "silentlycontinue"
Test network connection
Test TCP port
Test-NetConnection -ComputerName <youripaddress> -Port <yourport>
$ipaddress = "<youripaddress>"
$port = "<yourport>"
$connection = New-Object System.Net.Sockets.TcpClient($ipaddress, $port)
if ($connection.Connected) {
Write-Host "Success"
} else {
Write-Host "Failed"
}
Test UDP port
$ipaddress = "<youripaddress>"
$port = "<yourport>"
$connection = New-Object System.Net.Sockets.UdpClient($ipaddress, $port)
if ($connection.Connected) {
Write-Host "Success"
} else {
Write-Host "Failed"
}
Check if address goes through proxy
([System.Net.WebRequest]::GetSystemWebProxy()).getProxy("https://lucanoahcaprez.ch")
This returns an object containing the information about the connection. If the "Host" property does not contain the original requested URL, there is a setting on Windows present. This setting defines the Proxy and the address of the proxy can be viewed in the "Host" property on the response object of this command.
Manage Local Windows Groups
Add Microsoft Entra ID user to administrator group
$Email = ""
Add-LocalGroupMember -SID "S-1-5-32-544" -Member "AzureAD\$EMail"
Add Microsoft Entra ID user to remote desktop group
$Email = ""
Add-LocalGroupMember -SID "S-1-5-32-555" -Member "AzureAD\$EMail"
Open Windows Control Panel pages
Printer overview
explorer shell:PrintersFolder
PowerShell Module Management
List installed modules
Get-InstalledModule