SSH Tab

The SSH server host is different from the XDMCP server
Secure XDMCP is a connection method that allows X clients to connect to the PC's Xmanager through SSH tunneling. If the SSH server is not running on the XDM host server, a proxy server for SSH tunneling is required. This option is to configure this SSH proxy server.

Host
Enter the host name or IP address of the proxy server for SSH tunneling. In this case, users need to configure the SSH proxy server so that it can bind to not only loopback address (127.0.0.1) but also to external connections.

Port Number
Enter port number to use in SSH connection.

Use Default
Set [Port Number] as 22, the SSH protocol default port.

Preferred Version
Select an SSH protocol version to use. SSH2 is recommended since it provides better security and more functionalities than SSH1.

Send keep alive signal
Send a keep alive signal to a remote host. This function is used to prevent disconnection while a user is temporarily absent. In some network environments, a gateway or a firewall system may terminate connections without notice when the connection is idle for a specified period of time.

User Name
Set the user name used to connect to the SSH server.

Method
Select the method to use for user authentication. Support SSH authentication methods include Password, Public Key, Keyboard interactive, GSSAPI, and PKCS#11. If using the GSSAPI or PKCS#11 methods, click the [Setup] button and enter the required information.

Password
If the Password or Keyboard interactive method has been selected, the password should be entered here.

User Key
If the Public Key method has been selected, the user can specify which user key to use. Click [Browse] to select the user key. Users can also create, modify, delete, import, and export user keys from the User Key dialog box. For more information regarding Public Keys and user key management, please see "Public Key User Authentication"and "User Keys Dialog Box".

Passphrase
If the Public Key method has been selected, the user key's passphrase should be entered here. The passphrase of the user key can be changed in the User Key dialog box.

Use SSH authentication agent (Xagent)
If opting to use Xagent, Public Key authentication is attempted initially.
Xagent is an SSH authentication agent. Xagent holds user keys that are used for public key authentication and passes the key to the SSH client when required.
Xagent maintains a list of all SSH client user keys, and if required, prompts the user for a key passphrase. Once the correct key passphrase in inputted, Xagent unencrypts the key and it is stored in memory. Therefore, with Xagent, users can enter a passphrase once and use the key multiple times.