[Lilux-help] filtering DNS proxy

Hello, I am looking for a DNS proxy that allows me to filter which DNS requests are answered and which ones are dropped. The software should allow me to specify something like this: 192.168.1.5 "www.yahoo.com","www.google.com" 192.168.1.6 "www.google.com" meaning that the first machine is allowed to resolve the specified 2 names, and the second only "www.google.com". Reverse lookups, zone transfers and all kind of "browsing" must be blocked. I have looked at the bind documentation and although I found the view concept, this does not appear to allow me to specify a list of allowed names. Nor have I found an application-level firewall which understands DNS records. Does anybody know of such a software? -pu