thanks, but if the communication between cluster nodes all resolve to "internal to internal", amazon will not charge the traffic as external traffic, right?

On Tue, Sep 4, 2012 at 7:08 PM, aaron morton <> wrote:

The external  dns will resolve to the internal IP when resolved internally.

Using the internal IP means you are not charged for IO and it makes it clear you do not expect this service to be access from outside.


Aaron Morton
Freelance Developer

On 5/09/2012, at 7:37 AM, Yang <> wrote:

> says:
> " Note  In the - seeds list property, include the internal IP addresses of each seed node."
> why do I have to use internal IP?
> on a EC2 node,
> hostname resolution seems to directly give its internal IP:
> $ host
> is an alias for
> has address
> so using the public DNS or internal IP seems to be the same thing, or something I'm missing ?
> Thanks
> Yang