The first version of its predecessor, NetInfo, also handled DNS lookups. When they failed, users found they were locked out of everything else. This has improved!
Active Directory
Accessing information about you as a user and a great deal more, using the Advanced Options dialog for user accounts, and Directory Utility.
Please post comments adding to this list if you think you have found a bug, so that others can be aware too.
The Eclectic Light Company 