LDAP server vs LDAP sdk

Question

I was reading through various open source ldap's.

1. OpenLDAP - LDAP server
2. UnboundID - LDAP sdk

Questions

1. Can someone elaborate the difference between the LDAP server and LDAP sdk ?

2. It would more helpful if i get the answer for differences between OpenLDAP and UnboundID ?

Answer 1

1. An LDAP server is a server. An SDK provides a client-side library.
2. OpenLDAP and UnboundID are two different LDAP products. OpenLDAP provides both a server and a client, and an SDK. UnboundID provides an SDK and possibly a server too, you would have to ask them.