Secure NTP configuration for Windows Server 2008R2?


Aug 29, 2001
I have a Windows Server 2008R2 box in a Non-active directory setup that is acting as a NTP server for other server boxes on my network. As part of the security configuration that is required, I need to have a secure external NTP server that it can reach, I have this information and the MD5 keys already, but I've been searching around to see how I can put this information into Windows so I can successfully reach this secure NTP server with the MD5 keys assigned to me when I change it. I can't seem to find any information to do this, so have any suggestions?

We tried creating a NTP box in Linux which would be easier to do this with, but could never get it work right on the network.