You can enable the secure communication between the client and repository using the repository certificate.
Log on to ePO - On-prem as an administrator and go to Menu → Configuration → Server Settings.
Select the Repository Certificate Management under the Setting Categories and click Edit.
Go to Actions in the lower-left corner, and Add Certificate.
Import the repository certificate to the server.
Tip
Choose a file with the following extensions: .cer, .crt, .p7b, encoded in either PKCS7, PEM, or DER format.
After uploading, the certificate details are parsed and mapped to their corresponding values. Click Save.
Note