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Annotation of 43BSDReno/usr.bin/passwd/passwd.1, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1990 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" Redistribution and use in source and binary forms are permitted provided
                      5: .\" that: (1) source distributions retain this entire copyright notice and
                      6: .\" comment, and (2) distributions including binaries display the following
                      7: .\" acknowledgement:  ``This product includes software developed by the
                      8: .\" University of California, Berkeley and its contributors'' in the
                      9: .\" documentation or other materials provided with the distribution and in
                     10: .\" all advertising materials mentioning features or use of this software.
                     11: .\" Neither the name of the University nor the names of its contributors may
                     12: .\" be used to endorse or promote products derived from this software without
                     13: .\" specific prior written permission.
                     14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     17: .\"
                     18: .\"     @(#)passwd.1   6.7 (Berkeley) 6/22/90
                     19: .\"
                     20: .Dd June 22, 1990
                     21: .Dt PASSWD 1
                     22: .Os BSD 4
                     23: .Sh NAME
                     24: .Nm passwd
                     25: .Nd modify a user's password
                     26: .Sh SYNOPSIS
                     27: .Nm passwd
                     28: .Op Fl l
                     29: .Op Ar user
                     30: .Sh DESCRIPTION
                     31: .Nm Passwd
                     32: changes the user's Kerberos password.  First, the user is prompted for their
                     33: current password.
                     34: If the current password is correctly typed, a new password is
                     35: requested.
                     36: The new password must be entered two times to verify any typing errors.
                     37: .Pp
                     38: The new password should be at least six characters long and not
                     39: purely alphabetic.
                     40: Its total length must be less than _PASSWORD_LEN (currently 128 characters).
                     41: Numbers, upper case letters and meta characters
                     42: are encouraged.
                     43: .Pp
                     44: Once the password has been verified,
                     45: .Nm passwd
                     46: communicates the new password information to
                     47: the Kerberos authenticating host.
                     48: .Tp Fl l
                     49: This option causes the password to be updated only in the local
                     50: password file, and not with the Kerberos database.
                     51: When changing only the local password,
                     52: .Xr mkpasswd  8
                     53: is used to update the user database.  This is run in the background, and,
                     54: at very large sites could take several minutes.  Until this update
                     55: is completed, the password file is unavailable for other updates
                     56: and the new password will not be available to programs.
                     57: .Tp
                     58: .Pp
                     59: To change another user's Kerberos password, one must first
                     60: run
                     61: .Xr kinit 1
                     62: followed by
                     63: .Xr passwd 1 .
                     64: The super-user is not required to provide a user's current password
                     65: if only the local password is modified.
                     66: .Sh FILES
                     67: .Dw /etc/master.passwd
                     68: .Di L
                     69: .Dp Pa /etc/master.passwd
                     70: the user database
                     71: .Dp
                     72: .Sh SEE ALSO
                     73: .Xr chpass 1 ,
                     74: .Xr kerberos 1 ,
                     75: .Xr kinit 1 ,
                     76: .Xr login 1 ,
                     77: .Xr passwd 5 ,
                     78: .Xr kpasswdd 8 ,
                     79: .Xr mkpasswd 8 ,
                     80: .Xr vipw 8
                     81: .br
                     82: Robert Morris and Ken Thompson,
                     83: .Em UNIX password security
                     84: .Sh HISTORY
                     85: A
                     86: .Nm passwd
                     87: command appeared in Version 6 AT&T UNIX.

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