Actually, I quickly generated a list of undocumented config options: http://sprunge.us/QDSE

Edit: Fixed version http://sprunge.us/LVYB

most of those seem to be documented: http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man5/...

I did a quick comparison between the OpCodes enum and the latest man page, and `UseRoaming` is the only real undocumented option.

Weird, my manpages didn't get updated despite man claiming they did. Fixing that now.

Edit: fixed, http://sprunge.us/LVYB

I believe "kerberosauthentication" and "rhostsauthentication" are documented as well. I'd check the "official" OpenBSD man page instead of whatever you have on your system. Regardless, thanks.

In the latest OpenSSH-portable source, those are considered "unsupported" and "deprecated," respectively (which means they're ignored, essentially). See https://gist.github.com/AGWA/e92d4f5343be1f7a941d#file-undoc... as well as the source https://github.com/openssh/openssh-portable/blob/e6c85f8889c...

Neither of those are mentioned on the latest manpage from git.