DShield
- http://www.dshield.org/
- Distributed Intrusion Detection System. Accepts firewall log excerpts from around the world and you can browse through activity reported to the system. Features a list of the "most wanted" abusive IP addresses.
Internet Storm Center
- http://isc.incidents.org
- Operated by the SANS Institute, the ISC provides a user-supported infrastructure for intrusion detection systems to share information about ongoing attacks that span countries, networks, and administrative boundaries.
Linux Security IDS
- http://www.linux-sec.net/IDS/
- A source of IDS-related information, including security best practices, audit procedures, penetration testing, and community information.
SecurityFocus
- http://www.securityfocus.com/ids
- Intrusion detection focus area; designed to assist discussion on security related topics, and provides a database of security knowledge and resources. It also hosts the BUGTRAQ mailing list.
myNetWatchman.com
- http://www.mynetwatchman.com/
- Intrusion Reporting and Response. Users forward firewall logs that are aggregated and analysed to identify incidents that are reported to the responsible party.
