Mod_authnz_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-authnz-external module for apache version 2.x