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NetBSD 6.1.5 - man page for yp (netbsd section 8)

NIS(8)				   BSD System Manager's Manual				   NIS(8)

NAME
     nis, yp -- description of the NIS (formerly YP) subsystem

SYNOPSIS
     ypbind [-ypset]
     ypbind [-ypsetme]

     ypset [-h host] [-d domain] server

     yppoll [-h host] [-d domain] mapname

     ypcat [-kt] [-d domainname] mapname
     ypcat -x

     ypmatch [-kt] [-d domainname] key ... mapname
     ypmatch -x

     ypwhich [-d domain] [[-t] -m [mname] | host]
     ypwhich -x

     ypserv [-d] [-x]

     yppush [-d domainname] [-h hostname] [-v] mapname

     ypxfr [-bcf] [-d domain] [-h host] [-s domain] [-C tid prog ipadd port] mapname

     ypinit -m [domainname]
     ypinit -s master_server [domainname]

     yptest

     rpc.yppasswdd [-noshell] [-nogecos] [-nopw] [-m arg1 arg2 ...]

DESCRIPTION
     The NIS subsystem allows network management of passwd and group file entries through the
     functions getpwent(3) and getgrent(3).  NIS also provides hooks for other client programs,
     such as amd(8) and rpc.bootparamd(8), that can use NIS maps.

     Password maps in standard YP are insecure, because the pw_passwd field is accessible by any
     user. A common solution to this is to generate a secure map (using ``makedbm -s'') which can
     only be accessed by a client bound to a privileged port.  To activate the secure map, see
     the appropriate comment in /var/yp/Makefile.yp.

     The NIS subsystem is conditionally started in /etc/rc.  See the /etc/rc.conf file for con-
     figuration variables.

SEE ALSO
     domainname(1), ypcat(1), ypmatch(1), ypwhich(1), ypclnt(3), group(5), hosts_access(5),
     nsswitch.conf(5), passwd(5), rc.conf(5), rc(8), ypbind(8), ypinit(8), yppoll(8), yppush(8),
     ypserv(8), ypset(8), yptest(8), ypxfr(8)

HISTORY
     The NIS client subsystem was originally written by Theo de Raadt to be compatible with Sun's
     implementation.  The NIS server suite was originally written by Mats O Jansson.

BUGS
     If ypbind(8) cannot find a server, the system behaves the same way as Sun's code: it hangs.

     The 'secure map' feature is not compatible with non-BSD implementations as found e.g. in
     Solaris.

BSD					February 26, 2005				      BSD


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