Related: Does anyone by chance know how to configure an "anonymous" ssh account that always runs the same program? This would be great for making text mode games available to everyone without needing to support different platforms, now that windows actually ships with ssh.
THats the theory. However, AIUI, you need a machine that only does this single application. Because if you have a user without password, that can be an issue for many other services. SMTP for instance.
