Topic "can not support preferred SSH protocol version"

Author Message


Hi guys,
I want to upload my files to my server. I have created a user in my server. create cygwin key pair. login by SSH.Now I want to use winscp. setup winscp completed. generate a key pair( by puttygen) accordings to the process in the link

copy the public key in the /home/<user> directory in my server.
Now i want to start login by winscp.
but error is "Private key file "<my local filepath>name.ppk contains key in SSH-1 format. It does not follow your prefferd SSH protocol version."

What is the wrong with me?
Any other way?


[View user's profile]
Site Admin
Joined: 2002-12-10
Posts: 26911
Location: Prague, Czechia
You have probably created SSH-1 (RSA) key file in puttygen, but you have selected SSH-2 protocol as preferred in WinSCP.
Martin Prikryl

You can post new topics in this forum


What is WinSCP?

It is award-winning SFTP client, SCP client, FTPS client and FTP client integrated into one software program for file transfer to FTP server or secure SFTP server. [More]

And it's free!


About donations

$9   $19   $49   $99

About donations


WinSCP Privacy Policy

WinSCP License