Open Directory Utility
You use Directory Utility to add and configure advanced connections to directory servers.
On your Mac, click the Spotlight icon (if shown) in the menu bar or press Command-Space bar.
Tip: If the Spotlight icon isn’t in the menu bar, add it using Dock & Menu Bar preferences.
In the search field, type Directory Utility—results appear as you type.
In the results, click Directory Utility.
See alsoAbout Directory Utility