We are planning to use Zmanda/Amanda community backup in our organisation. The problem we are facing is that we have our servers scattered at different data centers across globe, some are in client network, so we don't have seamless access to the servers.
We have only ssh connection to the clients, and after reading thru documentations and forum, i understand that amanda uses a port range and 10080 port to take backup, which is not possible in this case.
Our network topology is something like this:
Can someone suggest how can we achieve configuring amanda in this scenario. if I've missed something...