Ok, since I’m obviously not nerdy and/or cynical enough to get the joke, what exactly is wrong with DNS? None of the links seem to indicate what exactly the problem with it is.
https://medium.com/adevinta-tech-blog/its-not-always-dns-unl...
It's not always DNS, unless it is - https://news.ycombinator.com/item?id=38719126 - Dec 2023 (73 comments)
It seems carriers can't get their MTUs straight as of late, especially on MPLS links...
I really thought we had this figured out 20 years ago...
For me the path was accessible, logging on the same server proved the path was accessible, 3 hours of the proper troubleshooting confirmed everything should work. But yet.
Skipping short the circumstances, one of (the 6 total) DCs decided what... DNS server isn't worth running. And for this one user DFS (last changed at least two years ago) decided to fall back to the file server from 2018, which, of course, pointed the DFS target to a no longer existant share.
Of course it wasn't DNS in this case. It was the DNS in this one.
a.) lack of monitoring for running services b.) cruft/old configurations
Nothing makes sense, where is this address coming from? Oh. It was me. I put it there.
Almost anything you do on the internet (or local network) depends on DNS functioning correctly. DNS can get complex quickly - multiple servers (caching/authoritative/recursive) and protocols = lots of opportunities for something to be misconfigured. Cached entries in particular can be a nightmare if something gets outdated - it takes time for an update to a DNS record to propagate to all the other DNS servers on the Internet. All kinds of other random services etc depend on DNS records being correct and DNS working. When there’s an issue it’s not always immediately apparent that a DNS problem is the root cause, leading to lots of time chasing your tail/tearing your hair out trying to figure out what the heck broke.