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HP-UX 11i Version 3: February 2007

Technical documentation

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ypinit — build and install Network Information Service databases


/usr/sbin/ypinit -m [DOM= NIS_domain]

/usr/sbin/ypinit -s NIS_server_name [DOM= NIS_domain]

/usr/sbin/ypinit -c


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.


ypinit is a shell script that creates Network Information Service (NIS) databases on either a master or slave NIS server. ypinit asks a few self-explanatory questions, and reports success or failure to the terminal. For an overview of Network Information Service, see ypfiles(4) and ypserv(1M).


ypinit recognizes the following options and command-line arguments:


Create the local host as the master server to all maps (databases) provided in the NIS domain (see domainname(1)). All maps are built from scratch, either from information provided to ypinit at run-time, or from ASCII files in /etc. All such files should be complete and unabbreviated, unlike how they may exist on a NIS client machine (see passwd(4) for examples of abbreviated files).

See ypmake(1M) for more information on how NIS databases are built on the master server. Note that ypinit uses the NOPUSH=1 option when invoking make, so newly formed maps are not immediately copied to slave servers (see ypmake(1M)).


Create NIS databases on a slave server by copying the databases from an existing NIS server that serves the NIS domain.

The NIS_server_name argument should be the host name of either the master server for all the maps or a server on which the maps are current and stable.


Configures the local host as a NIS client, so that the NIS client will attempt to bind to a particular NIS server. Invocation of ypinit with a -c option prompts the user to construct a list of NIS servers, in the order of preference, to which the client will try to bind. This list of NIS servers is stored in the file /var/yp/binding/<domain_name>/ypservers. In order for ypbind to use this list of NIS servers, ypbind should not be invoked with -broadcast option. (See ypbind(1M) in ypserv(1M)). If it is so desired that it is not necessary for a NIS client to bind to a NIS server in a particular list, the ypinit -c installation mechanism could be ignored.


Causes ypinit to construct maps for the specified NIS_domain. DOM defaults to the NIS domain shown by the domainname command (see domainname(1).


ypinit returns exit code 0 if no errors occur; otherwise, it returns exit code 1.


ypinit was developed by Sun Microsystems, Inc.


/etc/group /etc/hosts /etc/netgroup /etc/networks /etc/passwd /etc/protocols /etc/publickey /etc/rpc /etc/services /etc/auto_master /etc/mail/aliases

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