points by embedding-shape 18 hours ago | 0 comments
> Same as anything else
Yeah, obviously I'm a programmer so I'm well aware it's technically possible, it was a bit of an exaggeration to explain how much value I feel I get from it.
> most if not all of the services exposed on port 0 seem to be accidental
No program actually end up "exposed on port 0", if it's not supported it won't be able to create a listener on that port, AFAIK. Most yeah, all no. P2P software commonly leverage port 0, and other "discover<>connect" types of software. But I'd agree that it's most likely accidental if outside of those niches.
Clearly you didn't read the article, plenty of stuff is in fact exposed on actual port 0 because it's a real thing and not just a way to get whatever ephemeral port like you're using.