To support computers and applications that are capable of submitting NIS client requests to a NIS server, the Server Suite provides its own Network Information Service. The Centrify Network Information Service, adnisd, is an optional process that can be installed on any computer where adclient is installed.
Once installed and running, the Centrify Network Information Service functions like a standard NIS server, but it responds to NIS client requests using the information stored in Active Directory, including any information imported from passwd and group NIS maps or from /etc/passwd and /etc/group files. The Centrify Network Information Service has some of the same security limitations as a standard NIS server, but it does allow you to provide encrypted authentication and directory service to computers where adclient cannot be installed.
The Centrify Network Information Service can be useful in environments where you plan a phased migration from existing NIS servers and clients or when the environment includes legacy systems that you cannot migrate or upgrade to support the Centrify Agent for *NIX.