newbie ldap question

[ronald <onramp@theoffice.net>]

Hi all,

DNs are normally represented in such fashions:

uid=jdoe1,dc=example,dc=com

or

sn=jdoe1,dc=exampl1,dc=com

My question: How do we specify what attributes can be used to represent a 
DN? For example, I've used uid and sn in the 2 examples above?

I gather in the schema definition for an object, there is a specifier which 
specifies that an attribute can be used to form a DN? What is it?

Thanks,
Ronald