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All configuration seems fine but OpenSSH replies with errors: 2048 bit keys was generated, public one put into C:\cygwin64\home\user\.ssh\authorized_keys. When trying to connect using PuTTY to localhost it wont let in.

Server refused our key

Moreover when using 100% valid credentials for user - OpenSSH won't let in either.

Access denied

OpenSSH was set up according to this tutorial.

Log at C:\cygwin64\var\log\sshd.log is empty. How to make it work?

PS. When trying to log in from Cygwin terminal it says:

Permission denied, please try again.

UPDATE 2

When installed bitvise SSH Server. Same story. Logon to Windows account failed Such a strange behavior.

UPDATE 3

When trying in cmd runas:

Attempting to start explorer.exe as user "PC\user2" ...
RUNAS ERROR: Unable to run - explorer.exe
1385: Logon failure: the user has not been granted the requested logon type at this computer.
  • Are you using the same user in both computers? Without other options, Windows username must be remote ssh key username (user@remotehost). – edumgui May 5 '16 at 16:01
  • I am running it all inside one VM while logged in as a different user. – J.Olufsen May 5 '16 at 16:06
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We could use process monitor and filter the "Access denied" error to have a troubleshoot.

Here is a link for reference:

https://blogs.msdn.microsoft.com/benjaminperkins/2013/05/03/using-process-monitor-to-solve-any-problem-including-debugdiag/

Here is the download link:

https://technet.microsoft.com/en-us/sysinternals/processmonitor.aspx

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