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<p>On 30/12/2013 22:17, Gaurav Kansal wrote:</p>
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<p class="MsoNormal">Hi Guys,</p>
<p class="MsoNormal">In bind 9.9.4, Reponse-Rate Limit doesn’t work until you configure bind with <strong>“—enable-rrl”</strong> option.</p>
<p class="MsoNormal">I was wondering why is it so ?</p>
<p class="MsoNormal"> </p>
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<p class="MsoNormal"> </p>
<p class="MsoNormal">Because it can be detrimental to existing sites if configured wrongly, its something not all sites would need, greater than 50% of resolvers are caching, not authoritative, therefore currently it's an "extra" option, it's also "new", in 5 years time maybe it will be a default, but to do so now would be wrong.</p>
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