ypupdated is a daemon that updates information in the Network Information Service (NIS). ypupdated consults the updaters(4) file in the /var/yp directory to determine which NIS maps should be updated and how to change them.

By default, the daemon requires the most secure method of authentication available to it, either DES (secure) or UNIX (insecure).

-i

Accept RPC calls with the insecure AUTH_UNIX credentials. This allows programmatic updating of the NIS maps in all networks.

-s

Accept only calls authenticated using the secure RPC mechanism (AUTH_DES authentication). This disables programmatic updating of the NIS maps unless the network supports these calls.

/var/yp/updaters

Configuration file for rpc.updated command.

See attributes(5) for descriptions of the following attributes:

keyserv(1M), updaters(4), attributes(5)

System Administration Guide, Volume I

The Network Information Service (NIS) was formerly known as Sun Yellow Pages (YP). The functionality of the two services remains the same; only the name has changed. The name Yellow Pages is a registered trademark in the United Kingdom of British Telecommunications PLC, and must not be used without permission.