Disable UDP for RDP

UDP is more susceptible to spoofing and reflection attacks. Disabling UDP can mitigate risks related to man-in-the-middle (MITM) and replay attacks.

1. 1
   Step 1

   Run PowerShell as Admin

   Right-click Start menu and select Windows PowerShell (Admin).

   
2. 2
   Step 2

   Execute Disable Command

   Copy and paste the following command into PowerShell:

   Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\Client" -Name "fClientDisableUDP" -Value 1 -Type DWORD -Force

   
3. 3
   Step 3

   Verify Setting

   To check if the setting was applied correctly, run:

   Get-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\Client" -Name "fClientDisableUDP"

4. 4
   Step 4

   Expected Result

   If it returns the following, then UDP is disabled for RDP:

   fClientDisableUDP : 1

5. 5
   Step 5

   Restart

   For the change to take effect, restart your dedicated server or VPS.