[ubuntu] 14.04 ssh for multi-node cloudera cluster

Hello,

We have four computers ruing Ubuntu Desktop 14.04 that we have coected using a Netgear router. We are trying to use these four computers to create a multi-node Hadoop cluster using Cloudera Manager and CDH, which requires a network using SSH. We haven't done any configuring of the router, just used the default settings.

We have tried installing openssh-server using sudo apt-get install onto each of the computers. We used

ssh-keygen -t rsa

ssh [email protected]

scp -P "22" ~/.ssh/id_rsa.pub clientuseame@serveripaddress:~/.ssh

How can we solve this public key problem? Does it have to do with our router settings? Is there a better way to cluster these computers for using Cloudera/Hadoop?

Thanks in advance.