Configuring data exchange between CDN servers and origins

You can select a protocol for communication between CDN servers and origins: always HTTP, always HTTPS, or the protocol used by the CDN server to communicate with the client.

To enable CDN servers to establish HTTPS connections with origins, you need to configure the domain names of the origins yourself, including issuing TLS certificates for them. For instance, you can use Yandex Certificate Manager: issue a certificate from Let's Encrypt^® and get its contents.

For a resource, you can also configure:

• HTTP Host header value in CDN server requests to origins: the primary domain name for content delivery, value copied from the client request, or an arbitrary value.
• Other HTTP headers in CDN server requests to origins (see instructions).
• Receiving of files by CDN servers from origins in parts: content segmentation.

Your resource and origins must be configured so that requests from CDN servers are allowed, processed correctly, and not redirected.

For example, if origins redirect requests from http URIs to https URIs, select HTTPS for the resource, and vice versa.