Step 1 - Configure secure shell – SSH
Secure shell is the preferred method for Dbvisit Standby to transport the Oracle logs from the primary to the standby (or secondary) servers.
Dbvisit Standby requires SSH to be configured without a password or passphrase between the primary and standby (or secondary) servers. If this is already configured between these serves, then this step can be ignored. Please continue with the next step.
See http://www.dbvisit.com/docs/Setup_ssh_without_passphrase.pdf on how to setup SH without a password or passphrase.