im try connect to my server using ubuntu terminal
ssh -p 2222 -i mypublickey.ppk username@ip
then its ask “Enter passphrase for key ‘mypublickey.ppk’:”
Im entering my password but its always wrong then i got error Permission denide (publickey).
i have no problem if connect from Putty ubuntu or windows
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From the error message, it sounds like you have a key pair associated with the account you are trying to log in to and the Ubuntu machine you are on. The private key is encrypted with a passphrase, so before it can be used to sign you in, you need to provide the passphrase to decrypt it. This passphrase is different from the password on the server that you are using when logging in with PuTTY.
To force a password-based login, use: ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no user@hostname.com
If you don’t remember the passphrase, you’ll need to remove the id_rsa and id_rsa.pub or id_dsa and id_dsa.pub files from your ~/.ssh directory on the local machine and/or remove the associated key from the .ssh/authorized_keys file on the server. Once you do that, you’ll default to password-based login.
http://askubuntu.com/questions/726616/cant-connect-to-my-vps-from-ubuntu-terminal I need to convert the PPK key to openssh format. sudo apt-get install putty-tools puttygen mypublickey.ppk -O private-openssh -o mypublickey
then connect
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