Secure Connection Requirement: To manage the E-Series system over a secure connection, certain steps need to be taken to ensure encrypted communications.

Disabling Legacy Management Interface: This step ensures that only secure management interfaces are used, preventing the use of less secure legacy protocols.

Certificate Signing Request (CSR): Completing the CSR on the system is necessary to generate a public/private key pair. This CSR can then be submitted to a certificate authority (CA) to obtain a signed certificate.

Importing CA Signed Certificates: Once the CA has signed the certificate, it must be imported into the E-Series system. This signed certificate ensures that the communication between the server and the system is encrypted and trusted.

NetApp E-Series SANtricity System Manager documentation on secure management

NetApp Implementation Engineer - SAN Specialist - E-Series manuals