User Commands                                         yppasswd(1)

NAME
     yppasswd - change your network password in the NIS database

SYNOPSIS
     yppasswd [ username ]

DESCRIPTION
     yppasswd changes the network password  associated  with  the
     user  username  in  the  Network  Information Service (NIS+)
     database.  If  the  user  has  done  a  keylogin(1),  and  a
     publickey/secretkey  pair  exists  for  the  user in the NIS
     publickey.byname map, yppasswd also re-encrypts the  secret-
     key  with  the  new  password. The  NIS password may be dif-
     ferent  from  the  local  one  on  your  own  machine.   Use
     passwd(1)  to  change  the password information on the local
     machine, and nispasswd(1) to change the password information
     stored  in  Network  Information  Service  Plus,  Version  3
     (NIS+).

     yppasswd prompts for the old  NIS password, and then for the
     new one. You must type in the old password correctly for the
     change to take effect.   The  new  password  must  be  typed
     twice, to forestall mistakes.

     New passwords must be at least four characters long, if they
     use  a  sufficiently rich alphabet, and at least six charac-
     ters long if monocase.  These rules are relaxed if  you  are
     insistent  enough.  Only the owner of the name or the super-
     user may change a password; superuser  on  the  root  master
     will not be prompted for the old password, and does not need
     to follow password construction requirements.

     The  NIS password daemon, rpc.yppasswdd must be  running  on
     your  NIS  server  in  order  for  the  new password to take
     effect.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|

SEE ALSO
     keylogin(1),     login(1),     nispasswd(1),      passwd(1),
     getpwnam(3C),         getspnam(3C),        secure_rpc(3NSL),
     nsswitch.conf(4), attributes(5)

SunOS 5.8           Last change: 11 Mar 1997                    1

User Commands                                         yppasswd(1)

WARNINGS
     Even after the user has  successfully  changed  his  or  her
     password  using  this command, the subsequent login(1) using
     the new password will be successful only if the user's pass-
     word  and  shadow  information  is  obtained  from NIS, (see
     getpwnam(3C), getspnam(3C), and nsswitch.conf(4)).

NOTES
     The use of yppasswd is discouraged, as it is now only a link
     to  the  passwd(1)  command,  which  should be used instead.
     Using passwd(1) with the -r nis option will achieve the same
     results,  and  will  be  consistent across all the different
     name services available.

BUGS
     The update protocol passes all the information to the server
     in  one  RPC  call,  without ever looking at it. Thus if you
     type your old password incorrectly, you will not be notified
     until after you have entered your new password.

SunOS 5.8           Last change: 11 Mar 1997                    2