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What is a DNS and what does it do?
(lemmy.world)
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this post was submitted on 06 Jul 2026
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Explain Like I'm Five
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Yes. That's why DNS has a TTL (time to live) in seconds in every response which specifies how long you should remember it before you ask again. The 256 seconds in my example are the real TTL that I got when asking for lemmy.world.