Dnsmasq redirect if site is down

I have a dnsmasq dns-server set up on a computer in my LAN. I want my dns server to test whether wikipedia.com is reachable, and if it's not, point the client computer to a local copy of wikipedia. I was thinking I could do this with a few frequently visited sites, and have some script that tests whether those sites are up every five minutes. Dnsmasq could then read from a file whether it should redirect or not.
Is this possible?
Thanks!
Last edited by rayman (2011-09-10 11:27:15)

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