SECURETTY(5)

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

DESCRIPTION
The file /etc/securetty is used by (some versions of) login(1). The file contains the device names of tty lines (one per line, without leading /dev/) on which root is allowed to login. See login.defs(5) if you use the shadow suite.

FILES
/etc/securetty

SEE ALSO
login(1), login.defs(5)