Configure RPC listener settings

Supported on: At least Windows Server 2016, Windows 10

Registry

HKLM Software\Policies\Microsoft\Windows NT\Printers\RPC

Options

RpcProtocols enum
  • RPC over named pipes -> 3
  • RPC over TCP -> 5
  • RPC over named pipes and TCP -> 7
ForceKerberosForRpc enum
  • Negotiate -> 0
  • Kerberos -> 1

Description

This policy setting controls which protocols incoming RPC connections to the print spooler are allowed to use. By default, RPC over TCP is enabled and Negotiate is used for the authentication protocol. Protocols to allow for incoming RPC connections: -- "RPC over named pipes": Incoming RPC connections are only allowed over named pipes -- "RPC over TCP": Incoming RPC connections are only allowed over TCP (the default option) -- "RPC over named pipes and TCP": Incoming RPC connections will be allowed over TCP and named pipes Authentication protocol to use for incoming RPC connections: -- "Negotiate": Use the Negotiate authentication protocol (the default option) -- "Kerberos": Use the Kerberos authentication protocol If you disable or do not configure this policy setting, the above defaults will be used.