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<p>Hi all, </p>
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<p>Recently revealed "Mirai" botnet source code suggests that they can blast queries to local resolvers for DDoS attack.</p>
<p>I suppose the local resolvers may see impact if a good number of IoT devices in the network got comprised and there is no rate limiting per source.</p>
<p>In addition, it can also cause damage on the authoritative name servers if the attack is targeting a specific domain.</p>
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<p>So just out of curiosity, is it prevailing that the residential ISPs do rate limit on their local resolvers (per source preferably) ?</p>
<p>Public DNS resolvers seem to do that, i.e. 8.8.8.8, but it will be helpful if ISPs do it too.</p>
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<p>Thanks!<br>
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