PAM_SECURETTY(8)

NAME
pam_securetty - SecureTTY PAM module

SYNOPSIS
[service-name] module-type control-flag pam_securetty [options]

DESCRIPTION
The SecureTTY service module for PAM provides functionality for only one PAM category: account management. In terms of the module-type parameter, this is the “account” feature. It also provides null functions for authentication and session management.

  SecureTTY Account Management Module
The SecureTTY account management component (pam_sm_acct_mgmt()), returns failure if the user is attempting to authenticate as superuser, and the process is attached to an insecure TTY. In all other cases, the module returns success.

A TTY is considered secure if it is listed in /etc/ttys and has the TTY_SECURE flag set.

The following options may be passed to the authentication module:

debug
    syslog(3) debugging information at LOG_DEBUG level.

no_warn
    suppress warning messages to the user. These messages include reasons why the user's authentication attempt was declined.

SEE ALSO
getttynam(3), syslog(3), pam.conf(5), ttys(5), pam(8)