As part of a Windows 10 update 1803 a few days ago, the cygwin sshd service was removed, keeping my users from accessing my server. I had been successfully using sshd for several years and it has survived numerous windows updates.
Here is what I have done to fix it: Disable the following services via W10 computer management. OpenSSH Authentication Agent SSH Server Broker SSH Server Proxy SSHdBroker I'm not sure all those need to be disabled. Run a bash shell as administrator, and reinstall sshd using cygrunsrv cygrunsrv --stop sshd cygrunsrv --remove sshd cygrunsrv --install sshd --path /usr/sbin/sshd.exe --user cyg_server cygrunsrv --start sshd You will get an error from the start command: cygrunsrv: Error starting a service: QueryServiceStatus: Win32 error 1062: The service has not been started. The task manager shows sshd is indeed running, and remote ssh clients can log in. So I am ignoring the error. cygrunsrv -Q sshd shows the service is stopped. And W10 computer management shows it is stopped. If you try to start it again, it will fail because the sshd task has a hold on the TCP ports. If you want to stop/restart to edit config files, you need to directly kill the sshd task. After a system restart, W10 starts the correct sshd again. Simply using "cygrunsrv --install sshd" without --path, installs the MS sshd. Not what I want. If you don't specify --user with the --install, W10 will use SYSTEM which does not have the permissions (SeTcbPrivilege etc) to change to the client user. So you get seteuid Operation Not Permitted errors when a remote client tries and fails to login. I discovered this the hard way. BTW, I didn't want to start over with ssh-host-config because I didn't want to risk invalidating my encryption keys and confuse my remote clients. Except for the weirdness where computer management and cygrunsrv -Q show the service is stopped, everything seems to work okay and my users are happy again. Cliff Geschke Precise Automation -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
