d18b50bbf4
is not found. Fixes both PRs 4142 and 4557 (4558). Still fails properly if user is in YP and not in local database. Man page fixed to reflect current logic behind falling back, changed since YP was made default some time ago.
114 lines
3.7 KiB
Groff
114 lines
3.7 KiB
Groff
.\" $NetBSD: passwd.1,v 1.11 1997/11/21 20:28:33 tv Exp $
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.\"
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.\" Copyright (c) 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)passwd.1 8.1 (Berkeley) 6/6/93
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.\"
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.Dd June 6, 1993
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.Dt PASSWD 1
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.Os BSD 4
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.Sh NAME
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.Nm passwd ,
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.Nm yppasswd
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.Nd modify a user's password
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.Sh SYNOPSIS
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.Nm
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.Op Fl l
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.Op Fl y
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.Op Ar user
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.Nm yppasswd
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.Op Ar user
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.Sh DESCRIPTION
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.Nm
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changes the user's local or YP password. First, the user is prompted
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for their current password.
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If the current password is correctly typed, a new password is
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requested.
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The new password must be entered twice to avoid typing errors.
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.Pp
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The new password should be at least six characters long and not
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purely alphabetic.
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Its total length must be less than
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.Dv _PASSWORD_LEN
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(currently 128 characters).
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Numbers, upper case letters and meta characters
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are encouraged.
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.Bl -tag -width flag
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.It Fl l
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This option causes the password to be updated only in the local
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password file. When changing only the local password,
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.Xr pwd_mkdb 8
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is used to update the password databases.
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.It Fl y
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This forces the YP password database entry to be changed, even if
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the user has an entry in the local database. The
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.Xr rpc.yppasswdd 8
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daemon should be running on the YP master server.
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.Nm yppasswd
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is the equivalent of
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.Nm
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with the
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.Fl y
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flag.
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.El
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.Pp
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This is the behavior if no flags are specified:
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If the password is not in the YP database, then
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an attempt is made to use the local password database.
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The super-user is not required to provide a user's current password
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if only the local password is modified.
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.Sh FILES
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.Bl -tag -width /etc/master.passwd -compact
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.It Pa /etc/master.passwd
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The user database
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.It Pa /etc/passwd
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A Version 7 format password file
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.It Pa /etc/passwd.XXXXXX
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Temporary copy of the password file
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.El
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.Sh SEE ALSO
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.Xr chpass 1 ,
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.Xr login 1 ,
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.Xr passwd 5 ,
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.Xr pwd_mkdb 8 ,
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.Xr vipw 8
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.Rs
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.%A Robert Morris
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.%A Ken Thompson
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.%T "UNIX password security"
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.Re
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.Sh HISTORY
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A
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.Nm
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command appeared in
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.At v6 .
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