Error Code S-1-5-21root domain-518

Definition of Well-known Security Identifiers (SIDs) codes.

S-1-5-21root domain-518 Schema Admins A universal group in a native-mode domain; a global group in a mixed-mode domain. The group is authorized to make schema changes in Active Directory. By default, the only member of the group is the Administrator account for the forest root domain.

This code may be used in the following events / insertation strings:

Insertion Strings


Security Events