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 ttys(4)                                                             ttys(4)




 NAME    [Toc]    [Back]
      ttys - terminal control database file, for trusted systems

 SYNOPSIS    [Toc]    [Back]
      /tcb/files/ttys

 DESCRIPTION    [Toc]    [Back]
      The system supports a single terminal control database containing
      entries for each local terminal that can log into the system.
      Authentication programs use information contained in the terminal
      control database to determine if login from the terminal is permitted.
      Additional fields are maintained for informational purposes.

      The format of the terminal control database file is identical to other
      system authentication database files. For more information on the file
      format, see authcap(4).  The file consists of keyword field
      identifiers and values for those fields. The keyword identifiers
      supported and their use include:

      t_devname         This field defines the terminal device name for the
                        entry. The terminal device is expected to be
                        contained in the /dev directory, therefore this
                        prefix should not be specified. If the terminal
                        entry describes the /dev/tty1 device, the t_devname
                        field should contain tty1.

      t_uid             This field records the user id of the last user to
                        successfully login using the terminal device.

      t_logtime         This time_t field records the last successful login
                        time to the terminal device.

      t_unsuctime       This time_t field records the last unsuccessful
                        login time to the terminal device.

      t_failures        This field records the number of consecutive
                        unsuccessful login attempts to the terminal device.

      t_maxtries        This field specifies the maximum number of
                        consecutive unsuccessful login attempts permitted
                        using the terminal before the terminal is locked.
                        Once the terminal is locked, it must be unlocked by
                        an authorized administrator.

      t_login_timeout   This field specifies the login timeout value (sec).

      t_logdelay        This field specifies the delay between login tries
                        (sec).

      t_lock            This flag field indicates whether the terminal
                        device has been administratively locked or not. This



 Hewlett-Packard Company            - 1 -   HP-UX 11i Version 2: August 2003






 ttys(4)                                                             ttys(4)




                        field is manipulated by authorized administrators
                        only.

 EXAMPLES    [Toc]    [Back]
      The following is an example of a terminal control database entry:

           console:t_devname=console:\
                  :t_uid=reese:t_logtime#675430072:\
                  :t_unsuctime#673610809:\
                  :t_maxtries#777:\
                  :chkent:

      This entry is for the system console device, /dev/console.  The most
      recent successful login session was for the user reese.  The entry
      records the system time for the current successful login and the time
      of the most recent unsuccessful login attempt.

 WARNINGS    [Toc]    [Back]
      Remote terminals (ptys) should not be added to the devassign or ttys
      databases.  Device name formats treated as ptys by login are:

           ptym/*
           pts/*
           pty/*
           pty[x][y]   where x is a letter, and y is a hex number
           tty[x][y]   where x is a letter, and y is a hex number
           telnet/*

 AUTHOR    [Toc]    [Back]
      ttys was developed by HP.

 FILES    [Toc]    [Back]
      /tcb/files/ttys               Terminal control database file

 SEE ALSO    [Toc]    [Back]
      login(1), getprtcent(3), devassign(4), authcap(4), default(4).


 Hewlett-Packard Company            - 2 -   HP-UX 11i Version 2: August 2003
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