Inline On Tue, Aug 16, 2011 at 9:56 PM, tog <[email protected]> wrote: >> >> Does this mean that until I set a rule involving an external host my > cluster will not be usable ?
It's going to be usable but only accessible with SSH. You are not going to be able to connect directly to Hadoop for example. VMs to speak with each other with no firewall changes. > Or is there default ports opened for any external hosts (22, 80) ? As far as I know only 22 is open by default. > > Anyway I thought that those ports add to be defined before (jclouds, ec2, > ...) actually launch the vms. I was probably wrong. I'm not sure but I believe that jclouds opens 22 when starting the VMs. > I am not sure this is useful anymore in my case since I believe from what > you explained that vms are already started when Bootstrap is run and > therefore IPs hosname (private/local) are already known to whirr. Correct ? IPs and hostnames are not know before the bootstrap phase. Only in the configure phase you have all this info. -- Andrei
