Summary

We learned that for global security to work, we need a repository of users and groups of users who are authorized to access the administrative console (admin console). WebSphere uses three main types of registries which can be used to store the users and groups which are given access to log in and configure the server. On large systems used by businesses and other organizations, there will likely be several system administrators and application servers dispersed across more than one machine, and if you use a Local OS user registry, each machine would have its own user registry and it would be hard to keep them all up-to-date and secure, and hence LDAP is a better option.