You should import certain types of certificates onto the client host if they are not stored on the Horizon FLEX Policy Server or configured on the source virtual machine.

Note:

If the certificate is not imported on the Horizon FLEX client host, then the client user must select the Always Trust this host checkbox option when first connecting to the Horizon FLEX server. Even if a self-signed root certificate has been imported into the client's certificate store, the security warning might still display when first connecting to the Horizon FLEX server. In this case, the client user must select the Always Trust this host checkbox for the Horizon FLEX to work properly.