Enable SSH Keys Automatic Login#

In a Multi-Server environment the communication between the Nodes, including the exchange of data, uses SSH and requires SSH keys exchange to be set up for automatic, non-interactive logins. Therefore, it is necessary to keep the keys always up-to-date and synchronised, a task that can be accomplished by executing this command on all Nodes as the zextras user

zextras$ /opt/zextras/bin/zmupdateauthkeys

This command carries out the following tasks:

• It generates the SSH keys for the Node, if they are not already present

• It distributes the keys on all other Nodes