ubuntu filezilla sftp requires a passphrase

ssh directory under the SFTP -user home directory and also create an empty authorized_keys -file in the. The next step is to create ~/.ssh/authorized_keys file on the Ubuntu Server machine for the sftptestpubauth SFTP user. The whole process below:Ĭreating and editing the authorized_keys -file Now you have created the private key and the public key to the /home/ubuntu/.ssh -directory. Hit to use the default file name (id_rsa and id_rsa.pub).Įnter a passphrase for the private key ( you'll need this passphrase later when dealing with the private key, don't lose it): On the Ubuntu Client enter the command to create a private key / public key pair: The log file can be viewed with sudo nano /var/log/auth.log Save the changes with CTRL + O + and exit the nano using CTRL + XĪfter the file has been modified use sudo service ssh_restart to apply the changes. Set Pubkeyauthentication yes and you might want to set log level high in case you need to do debugging.

On the Ubuntu Server use sudo nano /etc/ssh/sshd_config to edit the sshd_config -file. See Setting up SFTP server on Ubuntu how to set up an SFTP server on Ubuntu if you don't already have one running. There are probably numerous ways to do this and this is in no way the best practice (in the real life you being a Linux guru and all you would send the public key straight to the server machine's authorized_keys, and such fancy stuff), just a hands on example of one way to test the functionality.

Also, PuTTY Key Generator is used on Windows.

The Ubuntu Client machine here is not really the client, we are using WinSCP on a Windows machine to connect the server. The Ubuntu Client here is the machine where the key pair is created and the Ubuntu Server is the machine where the public key authentication is enabled and that is being connected. You could create the key pair on the PuTTY Key Generator, you don't need a Linux box for that. In this example you create a key pair on a Linux machine and convert the private key using PuTTY Key Generator so that it can be used in PuTTY and WinSCP for example.

Ubuntu filezilla sftp requires a passphrase