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Cloudflare frees up 100TB of RAM by shrinking 1.1.1.1's DNS cache entries — 250 billion cached DNS entries at any given time means one wasted byte costs 250GB (www.tomshardware.com)
submitted 2 months ago by to c/technology@lemmy.world
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[–] 1 point 2 months ago (1 child)

Cool. What is the file size of the DNS database being quarried with each request anyway? My knee jerk assumption is that it's like a petabyte, but the longer I think about it, the smaller it gets.

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  • [–] 1 point 2 months ago

    I actually don’t remember, I was mainly focused on the BGP configurations and data collection for presenting to our leadership. I think unbound allowed you to configure the cache size. Our servers were just cache servers, so if they did not have a record the server would just recurse the request.

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