How to change the SID of a machine in a dedicated catalog

This article describes how to change the Security ID (SID) of a machine in a Dedicated Catalog. Note: A dedicated machine might fail to register with the DDC after removing and rejoining it to a domain because of the change in the SID of the machine.

Procedure

Capturing the Current Configuration of the Broken Machine

Well known SID’s overview

A security identifier (SID) is a unique value of variable length that is used to identify a security principal or security group in Windows operating systems. Well-known SIDs are a group of SIDs that identify generic users or generic groups. Their values remain constant across all operating systems.

This information is useful for troubleshooting issues involving security. It is also useful for potential display problems that may be seen in the ACL editor. A SID may be displayed in the ACL editor instead of the user or group name. Continue reading “Well known SID’s overview”