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Generating a SSH Key in a Windows

Warning

 several old ssh exchange algorithms removed since Ubuntu 20.04 , so make sure to always use latest version of Putty. Otherwise you might experience errors while trying to connect.


Code Block
FATAL ERROR: Couldn't agree a key exchange algorithm (available: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256)


Download PuTTY Key Generator (puttygen.exe) from official Putty home page https://www.putty.org/ and start it.

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