Inherited a wildfire server - some questions

I have inherited administration duties over a wildfire server, and am curious about a few things:

The server is set up for LDAP authentication, and a mysql database.

In the admin console, the server shows many many more users than I had expected to see, even more users than are currently in ldap. I can only imagine that the wildfire console is showing me every entry that has ever existed in ldap, Is this true?

Where are those user entries being persisted? I can’'t find them in the database.

aha - I see it now - its pointed to a testing ldap server, not our live one, which is probably OK, except that the testing server is never cleaned up, and has lots of garbage entries.