.\" Copyright (c) 1994 Mats O Jansson <moj@stacken.kth.se>
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.\"	$Id: rpc.yppasswdd.8,v 1.2 1995/11/01 17:40:34 deraadt Exp $
.\"
.Dd July 3, 1994
.Dt YPPASSWDD 8
.Os NetBSD 0.9a
.Sh NAME
.Nm yppasswd, rpc.yppasswdd
.Nd YP update password file daemon
.Sh SYNOPSIS
.Nm /usr/sbin/rpc.yppasswdd
.Op Fl noshell
.Op Fl nogecos
.Op Fl nopw
.Op Fl m Ar arg1 arg2 ... 
.Sh DESCRIPTION
.Nm Yppasswdd
must be running on the YP master server to allow users to change information
in the password file. If the user needs to change password this is normaly
done with a program called
.Nm yppasswd .
This program doesn't exists in NetBSD but is integrated into
.Xr passwd 1 . 
Forced usage of YP password change can be done with
.Nm passwd -y .
.Pp
Other user information can be changed with
.Xr chpass 1 .

Usage of the equivalent to
.Nm yppasswd
can be done with an
.Ar y
switch to
.Nm passwd .
 handles changes in the passwd file. 
is a fundamental part of the Network Information Service (NIS).
This server provides information from YP maps to the YP clients
on the network.
.Pp
IF the file
.Nm /var/yp/yppasswdd.log
exists then messages will be written to the file.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl noshell
Don't allow changes of the shell field in the passwd file.
.It Fl nogecos
Don't allow changes of the gecos field in the passwd file.
.It Fl nopw
Don't allow changes of the password in the passwd file.
.It Fl a Ar arg1 arg2 ...
Don't use 
.Ar /var/yp/securenet .
Use another file with another file format. For futher information see
man page for
.Ar ypserv.acl .
.El
.Sh FILES
.Bl -tag -width /var/yp/yppasswdd.log -compact
.It Pa /var/yp/yppasswdd.log
.It Pa /etc/passwd
.It Pa /etc/master.passwd
.El
.Sh SEE ALSO
.Xr ypserv.acl 5 ,
.Xr securenet 5 ,
.Xr ypbind 1 
.Sh AUTHOR
Mats O Jansson <moj@stacken.kth.se>