this post was submitted on 29 Aug 2026
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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 7 hours ago by Gsus4@mander.xyz to c/technology@lemmy.world
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[–] stoicmaverick@lemmy.world 6 points 4 hours ago (1 children)

I never even thought about this before, but what kind of hardware is a root level DNS server like 1.1.1.1 or quad 8 run on? Are they all roughly the same, or do they take different approaches to the load?

[–] Archer@lemmy.world 6 points 2 hours ago

Look up how Cloudflare does anycast BGP. They have servers in data centers everywhere and leverage the fact that they can all be 1.1.1.1 so people’s queries only hit the physically closest server, it’s pretty cool