| 1 | .\" $Id: passwd.1,v 1.1 1998-05-08 15:15:09 ghudson Exp $ |
|---|
| 2 | .\" |
|---|
| 3 | .\" Copyright 1998 by the Massachusetts Institute of Technology. |
|---|
| 4 | .\" |
|---|
| 5 | .\" Permission to use, copy, modify, and distribute this |
|---|
| 6 | .\" software and its documentation for any purpose and without |
|---|
| 7 | .\" fee is hereby granted, provided that the above copyright |
|---|
| 8 | .\" notice appear in all copies and that both that copyright |
|---|
| 9 | .\" notice and this permission notice appear in supporting |
|---|
| 10 | .\" documentation, and that the name of M.I.T. not be used in |
|---|
| 11 | .\" advertising or publicity pertaining to distribution of the |
|---|
| 12 | .\" software without specific, written prior permission. |
|---|
| 13 | .\" M.I.T. makes no representations about the suitability of |
|---|
| 14 | .\" this software for any purpose. It is provided "as is" |
|---|
| 15 | .\" without express or implied warranty. |
|---|
| 16 | .TH PASSWD 1 "5 May 1998" |
|---|
| 17 | .SH NAME |
|---|
| 18 | passwd \- Change Kerberos or local password |
|---|
| 19 | .SH SYNOPSIS |
|---|
| 20 | passwd \fI[-k|-l]\fR \fI[username]\fR |
|---|
| 21 | .SH DESCRIPTION |
|---|
| 22 | .I passwd |
|---|
| 23 | changes a user's Kerberos or local password and possibly updates the |
|---|
| 24 | system's local password file with the new user entry. |
|---|
| 25 | .PP |
|---|
| 26 | The first task of |
|---|
| 27 | .I passwd |
|---|
| 28 | is to choose between the Kerberos and local password-changing |
|---|
| 29 | programs. If the |
|---|
| 30 | .B -k |
|---|
| 31 | argument is given, |
|---|
| 32 | .I passwd |
|---|
| 33 | runs the Kerberos password-changing program (/usr/athena/bin/kpasswd); |
|---|
| 34 | if the |
|---|
| 35 | .B -l |
|---|
| 36 | argument is given, |
|---|
| 37 | .I passwd |
|---|
| 38 | runs the local password-changing program (/usr/bin/passwd). If |
|---|
| 39 | neither option is given, |
|---|
| 40 | .I passwd |
|---|
| 41 | runs the local password-changing program if it is invoked by root or |
|---|
| 42 | by a user listed as having a local account in |
|---|
| 43 | .IR /etc/athena/access . |
|---|
| 44 | Otherwise, it runs the Kerberos password-changing program. |
|---|
| 45 | .PP |
|---|
| 46 | If |
|---|
| 47 | .I passwd |
|---|
| 48 | runs the local password-changing program, it subsequently attempts to |
|---|
| 49 | update the appropriate local passwd file (which may be |
|---|
| 50 | .IR /etc/passwd.local , |
|---|
| 51 | .IR /etc/shadow.local , |
|---|
| 52 | or |
|---|
| 53 | .I /etc/master.passwd.local |
|---|
| 54 | depending on the system type) by replacing the line for the user with |
|---|
| 55 | the new line from the appropriate passwd file. If there is no local |
|---|
| 56 | passwd file or if the user has no entry in the local passwd file, no |
|---|
| 57 | update is performed. |
|---|
| 58 | .SH FILES |
|---|
| 59 | /etc/athena/access |
|---|
| 60 | .br |
|---|
| 61 | /etc/passwd |
|---|
| 62 | .br |
|---|
| 63 | /etc/passwd.local |
|---|
| 64 | .br |
|---|
| 65 | /etc/shadow |
|---|
| 66 | .br |
|---|
| 67 | /etc/shadow.local |
|---|
| 68 | .br |
|---|
| 69 | /etc/master.passwd |
|---|
| 70 | .br |
|---|
| 71 | /etc/master.passwd.local |
|---|
| 72 | .PP |
|---|
| 73 | depending on the system type. |
|---|
| 74 | .SH "SEE ALSO" |
|---|
| 75 | access(5) |
|---|
| 76 | .SH AUTHOR |
|---|
| 77 | Greg Hudson, MIT Information Systems |
|---|
| 78 | .br |
|---|
| 79 | Copyright 1998 by the Massachusetts Institute of Technology. |
|---|
