[Snippet] Checking a Global Catalog is really a Global Catalog

Use an LDAP browser or ADSI Editor to connect to the port 3268 Global Catalog communication is performed over TCP port 3268, regular LDAP lookups are sent to TCP port 389.

After assigning a GC role to a server, check its Directory Services event log for event number 1119, which indicates successful obtaining a role of a Global Catalog server