So, recently I’ve been having issues with pictures loading on Facebook. Basically everything else works, but random images just fail to load.
I was messing around with it this morning and noticed that chrome was stuck on “Resolving address…”
Popping open a terminal window, I tried to see if it was a DNS issue.
Well, that’s just weird. My DNS server’s running locally… oh wait. A few weeks ago, I’d been messing with host-based firewalls on some of my machines just as a learning exercise. Logging into the DNS server, I showed the firewall rules:
Well, look at that, I’d been blocking TCP DNS requests on port 53. I’ll fix that right up:
And instantly, everything worked!
I really need to keep a changelog of my local stuff, I mess with too many things and a learning history would be sensible 🙂