By default, Edge Security Acceleration (ESA) points of presence (POPs) retrieve content from origin servers over HTTP. You can create origin rules to configure different protocols and ports, and apply the rules to origin requests that have different characteristics.
Create an origin protocol rule
Log on to the ESA console.
In the left-side navigation pane, click Websites.
On the Websites page, find the website that you want to manage, and click the website name or View Details in the Actions column.
In the left-side navigation pane, choose .
Click Create Rule and specify the Rule Name parameter.
In the If requests match... section, specify a custom filter expression that you want to use to match user requests and click Configure in the Origin Protocol and Port section. Then, select a protocol based on your business requirements.
Origin Protocol
Match Client: Default. When a client sends an HTTP or HTTPS request, ESA redirects the request to the origin server over the protocol used by the client.
HTTP: ESA redirects requests to the origin server over HTTP.
HTTPS: ESA redirects requests to the origin server over HTTPS. Before you set Origin Protocol to HTTPS, make sure that you have enabled HTTPS and configured a valid certificate for the origin server.
HTTP Port
The origin port that ESA POPs access when employing the HTTP protocol. Valid value: 1 to 65535.
HTTPS Port
The origin port that ESA POPs access when employing the HTTPS protocol. Valid value: 1 to 65535.
Default: The protocol and port used by the client request.
Click OK.