anti-briteforce PAM module

[Stanislav Sedov]

There is the first version of my anti bruteforce PAM module available.
It's primarily intended for preventing bruteforce attacks on authentification-
protected services (SSH, telnet, etc).

This module mainatins per-host statistics list. When the number of failed
authentification attempts from one hosts exeeds pre-configured limit,
the module performs special actions.

The module was tested on FreeBSD 7.x/6.x/5.x/4.x. It's still in alpha
quality, since it was not widely testes. However, it's used already
in production, on 20+ servers ;-)

Feel free to send comments/bug reports/suggestions to me. It'll be very
helpful for me.

Home page of the module: http://mbsd.msk.ru/pam_af.html.

						    Thanks in advance,
						      Stanislav Sedov.