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If you want to use public-key authentication when connecting to the remote host computer, you have to upload your public key to the host. If you have not yet generated your own public key, see Section Generating Keys.
Public keys can be uploaded automatically to a server. After a connection has been made to the server, a key pair can be selected on the Keys page of the Settings dialog. See Section Managing Keys.
Figure : The Keys page of the Settings dialog
Click Upload... to open the Upload Public Key dialog that allows you to automatically upload the public key to the specified directory, and automatically add an entry for the key to the authorization file.
Note: The automatic key uploading process uses the SFTP protocol. The administrator of the remote host computer may have restricted user access so that users are not able to configure public-key authentication for themselves even if public-key authentication is allowed in the server configuration. If you do not have the proper file permissions to the key directory, the automatic upload will fail.
Even if the automatic upload succeeds, it is possible that the server administrator has configured the system to store keys elsewhere than in the default .ssh2 directory. In this case the keys and the authorization file additions have to be moved manually to the proper directory.
If you do not use the automatic upload facility, you will need to place your public key file in the .ssh2 subdirectory in your home directory on the remote host computer. The default location for Unix servers is $HOME/.ssh2 and for Windows servers the .ssh2 directory under the user profile directory. The authorization file residing in the .ssh2 directory must be edited to take the newly transferred key into use. See Sections Manually Copying the Key File and Manually Editing the Authorization File.
Figure : The Upload Public Key dialog
This is the subdirectory on the server to which the public key file will be uploaded. If this directory does not exist, it will be created under your home directory on the server (for example /home/username/.ssh2/ or C:\Documents and Settings\username\.ssh2\). The default value is .ssh2
This is the file on the server that contains details of your public keys. If this file does not exist, it will be created. The default value is authorization.
View Authorization File
Selecting this box allows you to view and edit the authorization file before it is uploaded to the server.