Feature Overview

If multiple sites are hosted on your origin server and the hostname of the sites are different from acceleration domain names, you will have to configure an origin host. The origin host helps CDN to get the correct contents of target sites at your custom origin servers.

Differences between an origin server and an origin host:

• An origin server represents the network address of your origin servers which allows us to locate the origin server on the Internet. CDN nodes send requests to the specified address to retrieve contents.

• An origin host refers to the value carried by the HOST header in the origin requests and defines a specific site/host to which CDN requests for.

Differences between "Origin Host" and "Origin host for specific origin servers":

• Origin Host: you can configure an unified value of origin hostname when all of your origin servers share the same hostname.

• Origin host for specific origin servers: you can configure different origin hostname for each specific origin servers.

Additional Considerations

• For a specific domain name (not wildcard domain), the origin host is the acceleration domain name by default.

• For a wildcard domain name, the origin host is the actual domain name in the requests by default. For example, if the wildcard domain name is *.esurfing.com and the actual domain name in the request is example.esurfing.com, the origin host is example.esurfing.com by default.

• When you specify a custom origin host, make sure that the hostname is properly configured on your origin server.

• You can do with either "Origin Host" or "Origin host for specific origin servers" which means that you can't put values in both options simultaneously. You may need to delete the value in one of them to setup the other one.

• Origin host for specific origin servers is available for both custom origin or Xstor origin.

Procedures

Log in to the CDN console.
Go to Domain Management -> Domain List page.
On the Domain List page, find the target domain name, and click Edit in the Actions column.
Click Back-to-origin .
Clieck Add button under Origin servers section.
Fill in the origin information in the pop-up window.
Click OK
Click Sumit and Save button at the bottom of the page.

Content Delivery Network

Origin HOST for specific origin server