Table of Contents
Login to the Cluster
In the COKA Cluster we do not use passwords, users authentication is managed by Public-key authentication, thus you need to provide us the public key corresponding to the private key stored in the computer/account you will use to login to the cluster.
Generating a key Pair
In order to generate a key pair, if you do not have one already, you can follow several guides related to different GNU/Linux distributions or other OSs: Debian Ubuntu CentOS Windows Mac OS X
Sending the public key
After you have generated the key pair, you have to send us the public one (often called id_rsa.pub); we will add it to the authorized_keys for your user in the COKA Cluster front-end node. Once we add the key, you will be notified by e-mail and later you will be able to login to the COKA Cluster front-end node.
Actual login
To actually login to the front-end node, you can just type in your shell:
ssh your_user_name@coka.fe.infn.it
Remember that to have access to the Cluster the login request has to start from the unife.it network (including the Unife VPN ); login requests starting from IPs outside of these networks will be ignored.
Remember that your login request has to be initiated by the same account/computer where you generated the key pair (or anyway an account/computer that you have configured in order to use the private key corresponding to the public one you gave us).