Using SSH tunnel
For security reasons, databases may be configured to now allow direct access from remote servers. Using SSH Tunnel is a good security practice to prevent some bad hands from interfering with the connection and doing harm to your database. When you connect to a remote database instance an SSH tunnel will link a port on Etlworks cloud instance to a port on a remote host and encrypt that connection. Any data transported between Etlworks cloud instance and the remote server will go through the SSH first, be encrypted, then passed to the other end securely.