Online Documentation for SQL Query for Oracle
Setting SSH tunnel options
The SSH Tunneling section of the Database Registration Info dialog allows you to enable/disable SSH tunneling for connection to the database and set all the necessary SSH tunneling parameters.
Connect through the Secure Shell (SSH) tunnel
Select this option to establish connection to an intermediate SSH server and forward all Oracle commands through the secure tunnel.
Specify SSH host name, SSH port, SSH user name, SSH password, the path to the SSH key file (if necessary) in the corresponding boxes.
See SSH connection properties for details.
Please note that either SSH tunneling, or HTTP tunneling can be used for one connection, but not both types simultaneously.