Secure Shell (SSH) is a network communication protocol that enables two computers to securely communicate with each other in a client/server relationship.
You can enable or disable the use of SSH with the S Series Node server modules. Enabling SSH access facilitates troubleshooting when you request support. If, due to an unexpected event, access to an S Series Node through the HCP S Series Management Console or management API is not possible, the service provider can use SSH to log in to either server module for the purpose of diagnosing and resolving the issue.
Disabling SSH access enhances the security of the S Series Node but can increase the amount of time required to diagnose and resolve issues. If the HCP S Series software is not running on either server module and SSH access is disabled, you cannot change the SSH setting. In this case, the service provider must come to the your site to physically access the S Series Node and manually enable SSH access.
You should carefully consider whether you want SSH access enabled or disabled. Keeping SSH access enabled can prevent delays in diagnosing and resolving issues with the S Series Node, thereby minimizing the S Series Node downtime.
SSH access is initially enabled or disabled during the on-site setup of the S Series Node. If you have the security role, you can use the HCP S Series Management Console or management API to change this setting at any time while the HCP S Series software is running on at least one server module.
After a reinstallation of the HCP S Series OS and software, SSH access is disabled. To allow SSH access, you need to use the Management Console or management API to enable it.
To enable or disable SSH in the Management Console, go to .
While SSH access is enabled, this message appears first in the alert list in the Management Console:
SSH is enabled.
If you have the security role, this alert is a link to the page.