$FreeBSD: src/contrib/libpam/modules/pam_securetty/README,v 1.3.2.2 2001/06/11 15:28:27 markm Exp $ $DragonFly: src/contrib/libpam/modules/pam_securetty/Attic/README,v 1.2 2003/06/17 04:24:03 dillon Exp $ pam_securetty: Allows root logins only if the user is logging in on a "secure" tty, as defined by the listing in /etc/securetty Also checks to make sure that /etc/securetty is a plain file and not world writable. - Elliot Lee , Red Hat Software. July 25, 1996.