You can use Services for UNIX Administration to start or stop Server for NIS. When Server for NIS is stopped, it will not respond to Network Information Service (NIS) requests from clients, including requests for password changes.
Even when Server for NIS is stopped, you can continue to make
changes to NIS map data through Active Directory. It should be
noted that
In addition, when Server for NIS is stopped, NIS map changes will not be propagated to subordinate (slave) NIS servers running on UNIX. However, subordinate NIS servers running on Windows 2000 domain controllers will continue to receive updates.