Segurança da informação:

DNS Server Cache Snooping Remote Information Disclosure

http://support.simpledns.com/kb/a153/what-is-dns-cache-snooping-and-how-do-i-prevent-it.aspx

Literatura
http://technet.microsoft.com/en-us/library/cc771738.aspx
http://technet.microsoft.com/en-us/library/cc775637%28v=WS.10%29.aspx
http://technet.microsoft.com/en-us/library/cc961401.aspx
http://technet.microsoft.com/en-us/library/cc755941%28v=ws.10%29.aspx
http://www.rootsecure.net/content/downloads/pdf/dns_cache_snooping.pdf

Correção:
http://support.microsoft.com/kb/2678371