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HP-UX 11i Version 3: February 2007

Technical documentation

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ypupdated, rpc.ypupdated — server for changing NIS information


/usr/lib/netsvc/yp/rpc.ypupdated [-is]


The Network Information Service (NIS) was formerly known as Yellow Pages (yp). Although the name has changed, the functionality of the service remains the same.


ypupdated is a daemon that updates information in the Network Information Service (NIS) databases. It is activated at system startup when the NIS_MASTER_SERVER variable is set to 1 in /etc/rc.config.d/namesvrs file on the NIS master server. ypupdated consults the file updaters in the directory /var/yp 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 (without augmented security).


ypupdated supports the following options:


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


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.


ypupdated was developed by Sun Microsystems, Inc.



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