Kris
Mark ReidOH: “What is it about DNS that people find so difficult? It’s just cache invalidation and naming things.”
For the non-computer-science folks confused by this: these, along with off-by-one errors, are commonly described as the “two hardest problems in computer science”.
Dan Hugo
Boyd Stephen Smith Jr.I believe the classic saying is:
There are only two hard problems in computer science:
0. Cache coherency
1. Naming things
2. Off-by-one errors.
But, you top-level post made me literally laugh out loud, because I could _absolutely_ imagine the type(s) of person that might say it.
@BoydStephenSmithJr Yes, that was the exactly the saying the original post and my follow up comment was alluding to.
Ian Norton (he/him)@BoydStephenSmithJr @mdreid this is absolutely my standard reply to this :)
netop://ウィビ
Drew 🇵🇭 ♾️@mdreid I'm now wondering if I've ever had an off-by-one error when working with DNS, to get the hat trick. I fear it's possible.
@drewtowler If you get exactly two then that’s the hat trick right? ;)
@mdreid Haha, I see what you did there.
(I think...)
Caden@drewtowler @mdreid I almost certainly have, one of my uni classes made us implement a basic DNS server from scratch and I definitely overflowed a buffer at some point due to off by one
Marcel Waldvogel
Patrick Mevzek@drewtowler @mdreid 1) Name compression and offset handling (all DNS software was buggy in the past about that, confusing = and & when testing specific bits) and 2) bitsquatting (either from space rays or humans)
Paul_IPv6@paul_ipv6 I mean, it’s right there in the name: “hard”ware. :)
Geert Uytterhoeven@paul_ipv6 @mdreid And firmware.
cool_day@mdreid Dylan Bettie made a similar joke https://youtu.be/9CSjlZeqKOc?t=446
The Web That Never Was - Dylan Beattie
Simon Zerafa (Status: 
😊)Yes. That's all! 😂🤣🤦♂️
Thomas B. Rücker@mdreid Also off by one errors in your zone serial…