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NAME

       yppasswd, ypchfn, ypchsh - change your password in the NIS database

SYNOPSIS

       yppasswd [-f] [-l] [-p] [user]
       ypchfn [user]
       ypchsh [user]

DESCRIPTION

       In  the  old  days,  the  standard passwd(1), chfn(1) and chsh(1) tools
       could not be used under Linux to change the users NIS  password,  shell
       and  GECOS  information.  For  changing  the NIS information, they were
       replaced by their NIS counterparts, yppasswd, ypchfn and ypchsh.

       Today, this versions are deprecated and should not be used any  longer.

       Using  the command line switches, you can choose whether to update your
       password -p, your login  shell  -l,  or  your  GECOS  field  -f,  or  a
       combination  of  them.   yppasswd  implies  the  -p option, if no other
       option is given. If you use the -f or -l option, you also need  to  add
       the -p flag.  ypchfn implies the -f option, and ypchsh -l.

       When invoked without the user argument, the account information for the
       invoking user will be updated, otherwise that of user will be  updated.
       This  option  is  only  available  to  the super-user. If the yppasswdd
       daemon on the server supports it, you can give the root password of the
       server instead of the users [old] password.

       All  tools  will  first  prompt  the  user for the current NIS password
       needed for authentication with the yppasswdd(8)  daemon.  Subsequently,
       the program prompts for the updated information:

       yppasswd or -p
              Change  the user’s NIS password.    The user is prompted for the
              new password.  While typing the password, echoing is turned off,
              so the password does not appear on the screen. An empty password
              is rejected, as are passwords shorter than six  characters.  The
              user  will then be requested to retype the password to make sure
              it wasn’t    misspelled the first time.

       ypchsh or -l
              Change the user’s login shell. The user is prompted  for  a  new
              shell, offering the old one as default:

                Login shell [/bin/sh]: _

              To  accept  the default, simply press return. To clear the shell
              field in your passwd(5) file entry (so that the system’s default
              shell is selected), enter the string none.

       ypchfn or -f
              Change   the   user’s   full   name   and  related  information.
              Traditionally, some applications expect the GECOS  field  (field
              4)  of  the  passwd(5)  file to contain the user’s real name (as
              opposed to the login name) plus some additional information like
              the  office  phone  number.  This  information  is  displayed by
              finger(1) and probably some other tools, too.

              When setting  the  full  name,  ypchfn  displays  the  following
              prompts, with the defaults in brackets:

                Name [Joe Doe]:
                Location [2nd floor, bldg 34]:
                Office Phone [12345]:
                Home Phone []:

              To  accept  a  default,  simply  press return. To clear a field,
              enter the string none.

SEE ALSO

       chfn(1),   chsh(1),   finger(1),   passwd(5),   passwd(1),    ypcat(1),
       yppasswdd(8), ypserv(8), ypwhich(1)

AUTHOR

       yppasswd is part of the yp-tools package, which was written by Thorsten
       Kukuk <kukuk@suse.de>.