DNS Reliability Issues

The cluster focuses on concerns about DNS as a single point of failure, criticism of centralized providers like Cloudflare, and discussions on improving resilience through decentralization, redundancy, and proper TTL management.

📉 Falling 0.5x DevOps & Infrastructure
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#3426
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Keywords

R720 OK AWS ICANN SRV TTL GB UDP CEO DNS dns servers cloudflare server authoritative provider single point failure point failure single point caching

Sample Comments

fredski42 • Jul 22, 2021 • View on HN

I thought DNS was supposed to be resilient

olliej • Dec 10, 2020 • View on HN

Someone has to run the DNS servers the browsers talk to - DNS data is big and can change rapidly, especially in the cloudflare and AWS type of cases

chrisjsmith • Jul 5, 2011 • View on HN

Centralised DNS = bad. That's the issue.

davidjgraph • Jul 22, 2021 • View on HN

Serious question, has anyone properly solved the issue of DNS as a single point of failure?

r1ch • Oct 21, 2016 • View on HN

Surprised to see so many big names relying on a single provider. DNS is designed to be distributed, it should be possible to avoid a single point of failure.

ibcnu2 • Jun 18, 2013 • View on HN

Wouldn't simply owning the DNS be more efficient?

sharts • Apr 17, 2024 • View on HN

Perhaps using something like a split-horizon DNS setup would alleviate that

1MachineElf • Sep 17, 2021 • View on HN

At least you've removed one single point of failure for DNS lookups.

DDoS'ing DNS providers is common enough...

cube00 • Nov 19, 2014 • View on HN

Wouldn't that kill DNS if everyone did that considering it relies on caching for performance across the world?