this post was submitted on 21 Sep 2025
703 points (99.2% liked)
It's Always Sunny in Philadelphia
604 readers
38 users here now
For fans of the show, "It's Always Sunny in Philadelphia", and the Podcast!
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
It's often not that hard. Many routers have a setting for local dns records.
If you do make a public DNS record, I recommend not putting "plex" or "jellyfin" or "TV" in the domain or subdomain. Make it something more generic.
I recently got a domain from Namecheap, $100 for ten years. If you want something that changes every year, you can get some .xyz domain for like $2 for the first year (and then it'll go up to more the next years.)
Right, that's easy, but IIRC google devices hard code their DNS servers for casting, so you need to intercept traffic bound for
8.8.8.8
.These folks suggest that just blocking the DNS servers allows you to use your own fallback. Haven't personally tried that, but perhaps more straightforward.
Good to know. I don't have a setup yet, but I might soon.
I'd intercept port 53 traffic for UDP and TCP, that way it doesn't matter what the IP is. I don't know about consumer stuff, but a dst nat rule should work.