I've just done a bit more testing, since my friend emma in this Raddle thread was able to confirm in her own #Postmill instance (I've tested against #Raddle too because why not) that it's a caching reverse proxy causing images to stay longer on the server. I'm able to confirm that using a query string bypasses the proxy's cache and results in the expected 404. Hooray, and I couldn't expect any better from Raddle! :ai_yay: They always take #privacy seriously. :alice_wine:
I've used this method against #Mastodon, #Pleroma, and #Misskey. The first two still returns the image I've uploaded even though I've deleted my account AND used a query string to bypass proxy cache (yikes). Misskey forcibly rewrites the URL to strip out the query string, therefore I can't conclude for 100% sure that it's a proxy's fault. But I'm still pretty confident it is the reverse proxy's doing in the case of Misskey due to the observation I mentioned earlier where the generated file URLs that never got accessed don't get cached.
Alright I'm done with this shit, #fediverse devs, do whatever with this info with mind :seija_coffee:
Just 2 more stacks to move from my old #Portainer server to my new one!
I originally set the new one up as an agent connected to the old one thinking there would be a way to change an agent into a standalone server but there isn't
So the 5 stacks I'd re-created on the agent (and moved their data etc) had to be re-done!
For a lecture dealing with DNS, I am trying to find a ballpark estimate of how often a DNS record gets updated. (In order to show how hosts.txt would never scale).
Up to date ballpark estimates of the current number of records on the internet are also appreciated.
Retoots while prevent a new Morris worm to ask all DNS servers to report the count in their zones :D
Based upon my experience, any TTL < 15s is inconsistent and doesn't work at all and <60s doesn't make much sense since all those will likely get cached not by authoritative nameservers but all the other DNS servers in between that may not necessarily handle TTLs below 60s well or at all.