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pam_securetty — Limit root login to special devices ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ DESCRIPTION pam_securetty is a PAM module that allows root logins only if the user is logging in on a "secure" tty, as defined by the listing in /etc/securetty. pam_securetty also checks to make sure that /etc/securetty is a plain file and not world writable. It will also allow root logins on the tty specified with console= switch on the kernel command line and on ttys from the /sys/class/tty/ console/active. This module has no effect on non-root users and requires that the application fills in the PAM_TTY item correctly. For canonical usage, should be listed as a required authentication method before any sufficient authentication methods. OPTIONS debug Print debug information. noconsole Do not automatically allow root logins on the kernel console device, as specified on the kernel command line or by the sys file, if it is not also specified in the /etc/securetty file. EXAMPLES auth required pam_securetty.so auth required pam_unix.so AUTHOR pam_securetty was written by Elliot Lee <sopwith@cuc.edu>.