What came first: the CNAME or the A record?

kept by eddie jan 22

Cloudflare's reordering of CNAME records in DNS responses broke glibc and other clients due to widespread reliance on undocumented ordering.

How we saved 100 terabytes of memory by optimizing 1.1.1.1’s DNS cache
Cloudflare reduced its Big Pineapple DNS cache entry size by 56% through five Rust optimizations, freeing ~100 TB of memory while boosting insert throughput 43% and cutting lookup latency 19%.
also on 1.1.1.1, Cloudflare, #software-engineering, #developer-tools
Introducing the <usermedia> HTML element | Blog
Chrome 151 introduces the <usermedia> HTML element to handle camera and microphone access declaratively, replacing script-triggered prompts and improving permission recovery rates.
also on Cisco
Data centers are transitioning from AC to DC
HN commenters debate the practicality of transitioning data centers to DC power, noting it's been used for decades but faces chicken-and-egg adoption challenges.
also on Cisco
Why didn’t IPv6 work in my home network?
IPv6 stopped working on the author's home network because AdGuard Home's DNS settings had an option checked that disabled all IPv6 DNS queries.
also on #dns, #networking
Punycode: My New Favorite Algorithm - Ian Duncan - Ian Duncan
Punycode uses adaptive bias adjustment, delta compression, and variable-length base-36 encoding to efficiently encode Unicode into ASCII for DNS without shared state.
also on #dns, #software-engineering