[detuur]

Some years ago, I read a post on HN where someone made a text-mode game(? or something similar?) available through SSH. People could play the game by opening an SSH session and play from their terminals. This was non-trivial, and they explained all the ways they configured sshd to prevent players from running binaries other than the game.

I didn't bookmark that post, and I haven't been able to find it again to my great dismay. If anyone remembers this post and still has it, I'd love to read it again.

[gruffypuffy]

https://overthewire.org/wargames/ ?

[detuur]

It's not that, but still very cool!

[e12e]

> they configured sshd to prevent players from running binaries other than the game

You might be interested in how to limit users to nologin shell coupled with subsystem access:

https://news.ycombinator.com/item?id=3527754

[detuur]

None of the links here seem to be the one post that I found years ago, but this one in particular is pretty interesting.

I found this[1] one while looking around, the thread has some additional interesting remarks, including an LD_PRELOAD attack vector.

[1]: https://news.ycombinator.com/item?id=3550944

[e12e]

Sshbbs?

https://news.ycombinator.com/item?id=35412416

Ssh chat? https://news.ycombinator.com/item?id=8743374

Ssh tron? https://news.ycombinator.com/item?id=11234702

Devzat? https://news.ycombinator.com/item?id=30688691

Sshtalk? https://news.ycombinator.com/item?id=15829206