Originální popis anglicky:
securetty - file which lists ttys from which root can log in
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.
/etc/securetty
login(1),
login.defs(5)
