A.2.10 Will you write an SSH server for the PuTTY suite, to go with the client?

Not one that you'd want to use.

While much of the protocol and networking code can be made common between a client and server, to make a useful general-purpose server requires all sorts of fiddly new code like interacting with OS authentication databases and the like.

A special-purpose SSH server (called Uppity) can now be built from the PuTTY source code, and indeed it is not usable as a general-purpose server; it exists mainly as a test harness.

If someone else wants to use this as a basis for writing a general-purpose SSH server, they'd be perfectly welcome to of course; but we don't have time, and we don't have motivation. The code is available if anyone else wants to try it.