ISPMan is a system to design massive ISPs using LDAP as the backend.
ISPMan provides a web front end and a command line interface to create virtual domains and manages users, dns information, email infos and httpd setup data for these vhosts.
Aw2sql is a Perl CLI script which analyze the results of the Awstats and store them into a MySQL database. After this you can query this results from your own site and create a personalized design to the statistics.
Shoki is a free, open source network intrusion detection system. The fundamental design goals are simplicity and modularity, and the focus is on traffic analysis rather than content inspection.