I'm trying to setup a multi-datacenter Cassandra cluster. The problem is that my datacenters have only 1 external IP (wan IP), I can setup port forwarding on the data centers switchs to access each node from the outside world using a different port, but I don't know how to setup the cassandra.yaml file properly.

Is there a way to setup a multidatacenter cassandra cluster in this scenario?.

Thanks in advance!

1 Answer 1


You can try to make each node unique for some of the ports, but this isn't really a good path to go down. Cassandra nodes need to see each other on the ports listed here for the best setup: http://www.datastax.com/documentation/cassandra/1.2/index.html#cassandra/security/secureFireWall_r.html

One option that I have seen work well is a host VPN like Openswan: https://www.openswan.org/projects/openswan/

  • I think you suggest for port translation. That will be a single point-of-failure nah?
    – dedunu
    Sep 9, 2013 at 6:15

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.