Transport Layer Security (TLS) is a protocol for secure communication over computer networks. When a client request to an HCP S Series Node specifies HTTPS in the URL, both the client request and the response from the S Series Node are secured by TLS.
S Series Nodes support TLS versions 1.0, 1.1, 1.2, and 1.3, but you can set the minimum version that the S Series Node can use. For example, if you set the minimum TLS version to 1.2, the S Series Node accepts requests that use version 1.2 or 1.3 but rejects requests that use version 1.0 or 1.1.
By default, the minimum TLS version for an S Series Node is 1.2.
If you have the administrator or service role, you can use the HCP S Series Management Console or management API to change the minimum TLS version. Changing the minimum TLS version causes the S Series Node to reboot.
To change the minimum TLS version in the Management Console, go to .