1. Nessus: The network vulnerability scanner,
http://www.nessus.org/nessus/
2. OzymanDNS: Kaminsky DNS tunnel (2005),
http://www.doxpara.com
3. DNS multi vendor patch: CVE-2008-1447 (March 2008),
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447
4. CERT Advisory. Vulnerability Note VU-23495 - DNS implementations vulnerable to denial-of-service attacks via malformed DNS queries (August 2001)
5. Antonakakis, M., Perdisci, R., Dagon, D., Lee, W., Feamster, N.: Building a Dynamic Reputation System for DNS. In: Proceedings of the 19th USENIX Security Symposium (August 2010)