Mod_Auth_External can be used to quickly construct secure, reliable authentication systems. It can also be mis-used to quickly open gaping holes in your security. Read the documentation, and use with extreme caution. . Notably, this module can be used to securely authenticate against PAM (without exposing /etc/shadow file), using, for example, pwauth authenticator. . This Package includes the mod-athnz-external Module for Apache Version 2.x