PHPIDS is an opensource Intrusion Detection System written in and for PHP. It’s licensed under the GPLv2 license.
References:
PHPIDS Website
PHPIDS Demo
The OpenRCE community website was created from scratch to grow with the needs in community that’s targeted to reverse engineering. Security researches use the advantages of OpenRCE as a centralized recource because of hosted files, blog, forums, articles and more.
References:
OpenRCE website
Zone-H publishes every year stats of registered attacks.
According to those stats the most targeted operation systems are Linux, Windows 2003 and Windows 2000. The most defaced webservers are Apache, IIS/6.0 and IIS/5.0. References:
Zone-H.org - Statistics report 2005-2007
Looking for an opensource alternative for Google’s Google Analytcs software I found Piwik. With Piwik you can create interesting reports about poular pages, used keywords in search engines and obviously about your visitors.
It is licensed under the GPL.
References:
Piwik WebsiteTry it out at the online demo page.