Selecting an LDAP server is a difficult job. There are a range of different LDAP servers that claim to be outstanding. The importance of selecting the right LDAP server for your company cannot be underestimated, and IT administrators now have another choice to consider: LDAP in the cloud. Cloud LDAP, as a SaaS-based approach, can be a great alternative to conventional on-premise solutions.
Here are a few different options for LDAP solutions:
Apache Directory Server
OpenLDAP™
389 Directory Server (Previously Fedora Directory Server)
