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116 lines
3.4 KiB
Groff
116 lines
3.4 KiB
Groff
.\"
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.\" Manpage Copyright 1994 Olaf Kirch, <okir@monad.swb.de>
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.\"
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.Dd 18 December 1994
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.Dt YPPASSWD 1
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.Os FreeBSD 2.x
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.Sh NAME
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.Nm yppasswd, ypchpass, ypchfn, ypchsh
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.Nd modify a user's NIS password data
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.Sh SYNOPSIS
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.Nm yppasswd
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.Op Fl f
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.Op Fl s
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.Op Ar user
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.Nm ypchpass
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.Op Ar user
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.Nm ypchfn
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.Op Ar user
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.Nm ypchsh
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.Op Ar user
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.Sh DESCRIPTION
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When distributing your users' passwords over NIS (a.k.a. YP), the standard
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.Nm passwd ,
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.Nm chpass ,
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.Nm chfn , and
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.Nm chsh
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utilities cannot be
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used anymore to let a user change her password, because they only modify
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the password file on the local host. They are usually replaced by their
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YP counterparts, \fByppasswd\fP, \fBypchpass\fP, \fBypchfn\fP and \fBypchsh\fP.
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.Pp
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These commands are in fact the very same program, linked to different names.
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Using the command line switches, you can choose whether to update your
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password, your login shell (\fB-s\fP), or your GECOS field
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information (\fB-f\fP), or a combination of them. \fBchfn\fP and
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\fByppasswd\fP \fB-f\fP are equivalent, as are \fBchsh\fP and
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\fByppasswd\fP \fB-s\fP.
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.Pp
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When invoked without the \fIuser\fP argument, the account information for
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the invoking user will be updated, otherwise that of \fIuser\fP will be
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updated. This option is only available to the superuser.
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.Pp
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All tools will first prompt the user for the current NIS password needed
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for authentication with the \fByppasswdd\fP daemon. Subsequently, the
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program prompts for the updated information:
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.\"
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.\"
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.Pp "\fByppasswd\fP
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Change the user's NIS password. The user is prompted for the new password.
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While typing the password, echoing is turned off, so the password does not
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appear on the screen. An empty password is rejected, as are passwords shorter
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than six characters. The user will then be requested to retype the
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password to make sure it wasn't misspelled the first time.
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.\"
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.\"
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.Pp "\fBypchsh\fP or \fB-s\fP
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Change the user's login shell. The user is prompted for a new shell,
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offering the old one as default:
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.Pp
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.in +2n
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.ft B
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.nf
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Login shell [/bin/bash]: _
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.fi
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.ft
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.in
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.Pp
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To accept the default, simply press return. To clear the shell field in
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your \fBpasswd\fP file entry (so that the system's default shell is selected),
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enter the string \fInone\fP.
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.\"
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.\"
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.Pp "\fBypchfn\fP or \fB-f\fP
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Change the user's full name and related information. Traditionally, some
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applications expect the GECOS field (field 4) of the \fBpasswd\fP file to
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contain the user's real name (as opposed to the login name) plus some
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additional information like the office phone number. This information is
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displayed by \fBfinger(1)\fP and probably some other tools, too.
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.Pp
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When setting the full name, \fBypchfn\fP displays the following prompts,
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with the defaults in brackets:
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.Pp
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.in +2n
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.ft B
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.nf
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Name [Joe Doe]:
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Location [2nd floor, bldg 34]:
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Office Phone [12345]:
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Home Phone []:
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.fi
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.ft
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.in
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.Pp
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To accept a default, simply press return. To clear a field, enter the string
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\fInone\fP.
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.Sh LICENSE
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This program is a heavily beefed-up version of Theo de Raadt's \fByppasswd\fP
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client, which is covered by the BSD license. Therefore, the BSD license
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applies to this program as well.
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.Sh SEE ALSO
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.Xr finger 1 ,
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.Xr passwd 5 ,
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.Xr passwd 1 ,
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.Xr yppasswdd 8 .
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.Sh AUTHOR
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Theo de Raadt <deraadt@fsa.ca> (original client)
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.br
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Olaf Kirch <okir@monad.swb.de> (heavy modifications and manpages)
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.br
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Bill Paul <wpaul@ctr.columbia.edu> (port to FreeBSD and merger with
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.Xr passwd 1
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.Sh NOTES
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All these commands are really only symbolic links to
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.Xr passwd 1
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