How to achieve mutual backup between two TNAS located on different networks?

[TMgevin]

Applicable versions:
TOS 5, TOS 6

Applicable models:
All TNAS models

Operation guide:
1. First, please ensure that the source TNAS has successfully installed and enabled the client program (DupleBackup), and the target TNAS has also correctly installed and enabled the server program (DupleBackupVault).

2. Next, perform the necessary port mapping on the target TNAS to ensure that port 7921 is open.

3. In the source TNAS, select "Remote TNAS Task" as the target to create the backup task. When establishing a connection, please accurately enter the public IP address/domain name, user name, and password of the target TNAS to ensure that the connection is successfully established and the creation of the backup task is completed.