glenda.party
term% ls -F
term% cat index.txt
PASSWD(1)                   General Commands Manual                  PASSWD(1)



NAME
       passwd, netkey - change or verify user password

SYNOPSIS
       passwd [ username[@domain] ]

       netkey

DESCRIPTION
       Passwd  changes  the invoker's Plan 9 password and/or APOP secret.  The
       Plan 9 password is used to login to a terminal while the APOP secret is
       used  for  a  number  of external services: POP3, IMAP, and VPN access.
       The optional argument specifies the user name and authentication domain
       to  use if different than the one associated with the machine passwd is
       run on.

       The program first prompts for the old Plan 9 password in the  specified
       domain to establish identity.  It then prompts for changes to the pass‐
       word and the secret.  New passwords and secrets must be typed twice, to
       forestall  mistakes.  New passwords must be sufficiently hard to guess.
       They may be of any length greater than seven characters.

       Netkey prompts for a password to encrypt network challenges.  It  is  a
       substitute for a SecureNet box. It may only be run on a terminal.

SOURCE
       /sys/src/cmd/auth/passwd.c
       /sys/src/cmd/auth/netkey.c

SEE ALSO
       readnvram in authsrv(2), encrypt(2), cons(3), auth(8), securenet(8)

       Robert  Morris  and Ken Thompson, ``UNIX Password Security,'' AT&T Bell
       Laboratories Technical Journal Vol 63 (1984), pp. 1649-1672

BUGS
       Now that cpu connections are always encrypted, the only good reason  to
       require  that  these  commands be run only on terminals is concern that
       the CPU server might be subverted.



                                                                     PASSWD(1)