shadow(4)                                                  shadow(4)


       NAME
             shadow - shadow password file

       DESCRIPTION
             /etc/shadow is an access-restricted ASCII system file that
             contains an entry for each user on the system.  The fields
             within each entry are separated by colons; each entry is
             separated from the next by a new-line.  Unlike the /etc/passwd
             file, /etc/shadow does not have general read permission.

             Here are the fields in /etc/shadow:

             login_name  The name by which a user identifies himself or
                         herself when logging in.

             password    A 13-character encrypted password for the user, a
                         lock string to indicate the login is not
                         accessible, or no string to show that there is no
                         password for the login.

             lastchanged The number of days between January 1, 1970, and
                         the date that the password was last modified.

             minimum     The minimum number of days required between
                         password changes.

             maximum     The maximum number of days the password is valid.

             warn        The number of days before password expires that
                         the user is warned.

             inactive    The number of days of inactivity allowed for that
                         user.

             expire      An absolute date specifying when the login may no
                         longer be used.

             flag        A character identifying a password generator.

             The encrypted password consists of 13 characters chosen from a
             64-character alphabet (., /, 0-9, A-Z, a-z).

             To update this file, use the passwd, useradd, usermod, or
             userdel command.




                           Copyright 1994 Novell, Inc.               Page 1

      shadow(4)                                                  shadow(4)


      FILES
            /etc/shadow

      REFERENCES
            getspent(3G), login(1), passwd(1), passwd(4), putspent(3C),
            useradd(1M), userdel(1M), usermod(1M)










































                          Copyright 1994 Novell, Inc.               Page 2