Minecraft has a particularly flaky approach to LAN. Assuming their wiki is accurate: every 1.5 seconds, LAN hosts send a multicast packet on the UDP port registered to whatever "upnotifyp" is. In my experience, Minecraft LAN detection fails to work on most networks I've used it with, and I...

Ideally? DNS Service Discovery: <https://www.rfc-editor.org/rfc/rfc6763>. This is the standardized form of Apple's Bonjour multicast DNS system (used for AirDrop, etc.), and it basically works the same way as unicast DNS. macOS, Windows, most Linux distros, this is how they detect and communicate wi...

First off, port 666 is reserved for Doom. It is not the only game there, but it is the funniest one. Second, I was just discussing this in the IETF mailing list, and the general consensus is that the applications squatting on names should register: https://mailarchive.ietf.org/arch/msg/dnsop/TWa7xsc...

Could someone at Wube please register the "factorio" service name with IANA? You're just squatting on the name right now, and that's a serious problem. The relevant form is here: https://www.iana.org/form/ports-services . It's very easy to use: I could do it on your behalf if you prefer. A...

Thank you, and I apologize if I seemed overly hostile. [hr][/hr] While I don't think it's going to break anything, I notice that the ETag being sent is basically just the Last-Modified time (which is also being sent) in ISO 8601. If you are in fact setting the ETag to that automatically, you could j...

The Factorio blog's RSS feed is not currently set up for HTTP caching of any kind. Not using ETags is bad for anything on the web, but it is unacceptable for something intended to be checked on a regular basis. I have almost a hundred feeds in my newsreader app, and almost all of the traffic it gene...