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


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


   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.


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


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

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