What does systemFlags:1.2.840.113556.1.4.803:=2 mean in ldap?

Question

When I write the following ldap query in C#:

(&(objectClass=crossRef)(systemFlags:1.2.840.113556.1.4.803:=2))

What exactly the systemFlags:1.2.840.113556.1.4.803:=2 filter is used for?

I'm trying to follow the following MSDN explanation but yet I don't understand : http://msdn.microsoft.com/en-us/library/cc223141.aspx

Thank you in advance

Answer 1

This is an Extensible Match matching rule where 1.2.840.113556.1.4.803 AKA LDAP_MATCHING_RULE_BIT_AND is checking that the bit "2" is set.

In your particular use with systemFlags, is implies "When applied to an attribute, the attribute will be replicated to the global catalog. When applied to a Cross-Ref object, the naming context is a domain."

-jim