| rsc | c9d04e0 | 2005-02-14 00:00:02 +0000 | [diff] [blame] | 1 | .TH PASSWD 1 |
| 2 | .SH NAME |
| 3 | passwd, netkey \- change user password |
| 4 | .SH SYNOPSIS |
| 5 | .B passwd |
| 6 | [ |
| 7 | .I username\fR[@\fPdomain\fR]\fP |
| 8 | ] |
| 9 | .PP |
| 10 | .B netkey |
| 11 | .SH DESCRIPTION |
| 12 | .I Passwd |
| 13 | changes the invoker's Plan 9 password and/or APOP secret. |
| 14 | The Plan 9 password is used to login to a terminal while |
| 15 | the APOP secret is used for a number of external services: |
| 16 | POP3, IMAP, and VPN access. The optional argument specifies |
| 17 | the user name and authentication domain to use if different |
| 18 | than the one associated with the machine |
| 19 | .I passwd |
| 20 | is run on. |
| 21 | .PP |
| 22 | The program first prompts for the old Plan 9 password in the specified |
| 23 | domain to establish |
| 24 | identity. |
| 25 | It then prompts for changes to the password and the |
| 26 | secret. |
| 27 | New passwords and secrets must be typed twice, to forestall mistakes. |
| 28 | New passwords must be sufficiently hard to guess. |
| 29 | They may be of any length greater than seven characters. |
| 30 | .PP |
| 31 | .I Netkey |
| 32 | prompts for a password to encrypt network challenges. |
| 33 | It is a substitute for a SecureNet box. |
| 34 | .SH SOURCE |
| 35 | .B \*9/src/cmd/netkey.c |
| 36 | .br |
| 37 | .B \*9/src/cmd/auth/passwd.c |
| 38 | .SH "SEE ALSO" |
| 39 | .IR encrypt (3) |
| 40 | .PP |
| 41 | Robert Morris and Ken Thompson, |
| 42 | ``UNIX Password Security,'' |
| 43 | .I AT&T Bell Laboratories Technical Journal |
| 44 | Vol 63 (1984), pp. 1649-1672 |
