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<div>> How does negative caching algorithms treat an SOA with zero TTL?</div>
<div>> Doesn't it obsolete negative caching, since it needs the SOA for every</div>
<div>> negative response?</div>
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<div>Yeah, SOA TTL = 0 means no negative caching.</div>
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<div>RFC2308</div>
<div>3 - Negative Answers from Authoritative Servers</div>
<div>"The TTL of this record is set from the minimum of the MINIMUM field of the SOA record and the TTL of the SOA itself"</div>
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