Supongamos que montamos una infraestructura con servidor de licencias RDS. Por defecto, el servicio de licencias RDS nos da 120 días de periodo de gracia de acceso ilimitado de conexiones, sin necesidad de instalar licencias. Terminado este periodo, deben comprarse CALs (Client Access License). Pero a veces, no da tiempo a montar la infraestructura que queremos, o lo que tenemos es una laboratorio de pruebas, y necesitamos un poquito mas de tiempo para trastear.
Bueno, podemos resetear este contador para seguir con nuestras pruebas. Es muy fácil. Sólo debemos ir a HKLM\SYSTEM\CurrentControlSet\Control\TerminalServer\RCM\GracePeriod. Podemos ver un registro llamado TimeBomb que no podremos eliminar, por falta de permisos. De manera que sobre GracePeriod pulsamos botón derecho y vamos a permisos
Aquí tendremos que tomar propiedad de la carpeta con, por ejemplo, la cuenta de administrador local de la maquina, y posteriormente, asignarnos permisos de full control en la carpeta.
Tras estos permisos, podremos eliminar el registro L$RTMTIMEBOMB.
Reinicia el servidor, y veras que el mensaje sigue saliendo, pero con 120 días de periodo de gracia.
Tambien puedes ver en cualquier momentos los dias que quedan de periodo de gracia con el siguiente comando:
wmic /namespace:\\root\CIMV2\TerminalServices PATH Win32_TerminalServiceSetting WHERE (__CLASS !="")La segunda manera de realizar esto es prepararte el siguiente código en un archivo .ps1 y lanzarlo con un .\Reset-TSGracePeriod.ps1 -force
# This Script is intended to be used for Querying remaining time and resetting Terminal Server (RDS) Grace Licensing Period to Default 120 Days.
## Developed by Prakash Kumar (prakash82x@gmail.com) May 28th 2016
## www.adminthing.blogspot.com
## Disclaimer: Please test this script in your test environment before executing on any production server.
## Author will not be responsible for any misuse/damage caused by using it.
Param(
[Parameter(Mandatory=$false)] [Switch]$Force
)
Clear-Host
$ErrorActionPreference = "SilentlyContinue"
## Check if PowerShell Console has been launched As Administrator
if (([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
## Display current Status of remaining days from Grace period.
$GracePeriod = (Invoke-CimMethod -InputObject (Get-CimInstance -Namespace root/CIMV2/TerminalServices -ClassName Win32_TerminalServiceSetting) -MethodName GetGracePeriodDays).DaysLeft
Write-Host -fore Green ======================================================
Write-Host -fore Green 'Terminal Server (RDS) grace period Days remaining are' : $GracePeriod
Write-Host -fore Green ======================================================
Write-Host
## Check if -Force Parameter has been used, If so, It will not prompt for Y/N while executing the script and will simply reset the Grace Period.
If (-not $Force)
{
$Response = Read-Host "Do you want to reset Terminal Server (RDS) Grace period to Default 120 Days ? (Y/N)"
}
if ($Response -eq "Y" -or $Force) {
## Reset Terminal Services Grace period to 120 Days
$definition = @"
using System;
using System.Runtime.InteropServices;
namespace Win32Api
{
public class NtDll
{
[DllImport("ntdll.dll", EntryPoint="RtlAdjustPrivilege")]
public static extern int RtlAdjustPrivilege(ulong Privilege, bool Enable, bool CurrentThread, ref bool Enabled);
}
}
"@
Add-Type -TypeDefinition $definition -PassThru
$bEnabled = $false
## Enable SeTakeOwnershipPrivilege
$res = [Win32Api.NtDll]::RtlAdjustPrivilege(9, $true, $false, [ref]$bEnabled)
## Take Ownership on the Key
$key = [Microsoft.Win32.Registry]::LocalMachine.OpenSubKey("SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod", [Microsoft.Win32.RegistryKeyPermissionCheck]::ReadWriteSubTree,[System.Security.AccessControl.RegistryRights]::takeownership)
$acl = $key.GetAccessControl()
$acl.SetOwner([System.Security.Principal.NTAccount]"Administrators")
$key.SetAccessControl($acl)
## Assign Full Controll permissions to Administrators on the key.
$rule = New-Object System.Security.AccessControl.RegistryAccessRule ("Administrators","FullControl","Allow")
$acl.SetAccessRule($rule)
$key.SetAccessControl($acl)
## Finally Delete the key which resets the Grace Period counter to 120 Days.
Remove-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod'
write-host
Write-host -ForegroundColor Red 'Resetting, Please Wait....'
Start-Sleep -Seconds 10
}
Else
{
Write-Host
Write-Host -ForegroundColor Yellow '**You Chose not to reset Grace period of Terminal Server (RDS) Licensing'
}
## Display Remaining Days again as final status
tlsbln.exe
$GracePost = (Invoke-CimMethod -InputObject (Get-CimInstance -Namespace root/CIMV2/TerminalServices -ClassName Win32_TerminalServiceSetting) -MethodName GetGracePeriodDays).DaysLeft
Write-Host
Write-Host -fore Yellow =====================================================
Write-Host -fore Yellow 'Terminal Server (RDS) grace period Days remaining are' : $GracePost
Write-Host -fore Yellow =====================================================
if ($Response -eq "Y" -or $Force)
{
Write-Host -Fore Cyan `n"IMPORTANT: Please make sure you restart following services manually to bring this reset in effect:`n`n* Remote Desktop Configuration Properties `n* Remote Desktop Services"
}
}
Else
{
Write-Host -fore RED =====================================================
Write-host -ForegroundColor RED *`0`0`0`0 Please Launch PowerShell as Administrator `0`0`0`0*
Write-Host -fore RED =====================================================
}
## Cleanup of Variables
Remove-Variable * -ErrorAction SilentlyContinue
Despues, queda reiniciar los servicios "remote desktop configuration" y "remote desktop services".
