I'm trying to run a CopSSH server on a Windows 7 x64 machine. The server starts fine and all is well and good, but when I try to connect to the server with PuTTY (with password auth), I get an error after successful authentication. The log shows this:

fatal: chown(/dev/tty0, 1000, 513) failed: Bad file descriptor

which looks like a permission issue.

I tried some googling, and found a similar question on the Cygwin mailing list, which then claims to be related to this other question that seems to have been fixed since, sadly without indication what exactly was wrong.

It seems that the issue I have is related, but there's no indication how the problem was solved (and it's for Win XP). This was apparently a problem for Cygwin version 1.7.7, but CopSSH uses the latest 1.7.9.

I run the server under a dedicated account (not Local Service/Local System), as CopSSH strongly suggests during installation.

Any ideas what could be wrong?

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