The Directories page displays a table of all the other instances of Directory Server that are running on the local network and that are using the default Directory Server port (86). For each instance, it shows:
You should take care to ensure that an appropriate level of security has been set up for all the instances of Directory Server on a local network, to reduce the possibility of unauthorised access using the Directories page. For more on security and the options available, see Introduction to Server Enterprise Edition Security.