Stopping Open DNS - Billion: Difference between revisions
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[[File:Billion_dns_filter1.jpg|400px]]
*Then re-test from the Control Pages: https://clueless.aa.net.uk/dnsresolvers.cgi
Please note that on these routers this does not prevent the router's internal resolver from doing the DNS lookup itself. This isn't usually a problem, but due to recent DNS amplification attacks sometimes lookups have continued after fixing the original problem. To prevent this add a rule blocking DNS *from* the router's WAN IP *to* port 53. This will prevent usage of the router as the LAN's DNS resolver.
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