securetty(5) redhat man page | unix.com

SECURETTY(5)						     Linux Programmer's Manual						      SECURETTY(5)

NAME
       securetty - file which lists ttys from which root can log in

DESCRIPTION
       /etc/securetty  is used by login(1); the file contains the device names of tty lines (one per line, without leading /dev/) on which root is
       allowed to login.

FILES
       /etc/securetty

SEE ALSO
       login(1)

Linux								    1992-12-29							      SECURETTY(5)