| ▲ | soneil 7 hours ago | |
I have to admit - I still grind my teeth every time I see "dns propagation" used without a direct follow-up that it's a myth, you're looking at cascading cache expiry. Propagation might be a useful way to visualise it, but doesn't match reality unless every cache is a warm cache. | ||
| ▲ | YesThatTom2 4 hours ago | parent | next [-] | |
DNS changes propagate. They just do-so in a pull, not push, way. It’s accurate to say that a user is waiting for the change to propagate if they are sitting there clicking re-try as they wait for the cascading cache expirations to do their thing. | ||
| ▲ | thomascountz 5 hours ago | parent | prev | next [-] | |
https://jvns.ca/blog/2021/12/06/dns-doesn-t-propagate/ And checkout their Mess with DNS playgound! | ||
| ▲ | mrspuratic 3 hours ago | parent | prev | next [-] | |
I grind my teeth every time I hear "I need an urgent DNS change" :/ | ||
| ▲ | bityard 7 hours ago | parent | prev [-] | |
Yes! The idea of DNS records "propagating" gave me entirely the wrong mental model of DNS very early in my career. Granted, the confusion didn't last long because I read the cricket book soon after, but it was still pretty jarring. | ||