Origin server configuration

JinDun TeamMay 5, 2026 at 12:00Estimated reading time 2 min

Speed Shield Network team

Help Center Domain Name Access Source Server Configuration

Source server configuration

Sudun TeamMarch 11, 2026

The origin server is where the original version of your website's content is stored. Proper configuration ensures that Sudun nodes can fetch your content efficiently and securely.

1. Define the origin server

In the Sudun console, you can configure the origin server by the following types:

IP address: Enter the public IPv4 or IPv6 address of the server.
Domain Name (FQDN): If the origin server is hosted on a cloud service provider (such as AWS S3 or Azure), use the domain name provided by the service provider.

2. Origin server protocol and port

Choose how Sudun communicates with the server:

HTTP (port 80): Standard unencrypted connection.
HTTPS (port 443): Encrypts the connection. Note: Your origin server must have a valid SSL certificate installed for it to take effect.
Protocol Following: Sundun will employ the same protocol (HTTP or HTTPS) used by end users to access the website.

3. Key Steps: IP Whitelist Setup

To prevent the origin server from blocking Sundun edge nodes due to high concurrency requests (which may be misjudged by the server as a DDoS attack), you must whitelist our IP segments in the server firewall (such as iptables, ufw, or cloud security groups).

Download IP List: You can find the latest Sudun Edge IP list in the section.高级设置
Security Benefits: After setting a whitelist, you can configure the origin server to accept only traffic from Sudun IP addresses, effectively hiding the real server IP address and avoiding exposure to the public network.

4. The origin host header

主机头Used to tell the server which website Sudun is requesting.

Default mode: The domain name that Sudun sends the user requested.
Custom mode: If the origin server needs to respond to different internal domain names, you can customize the host header in the panel.源站设置

5. Health checks

Sudun automatically monitors the availability of the origin server.

If the origin stops responding, our node will try to provide a cached version of the website or display a customizable 5xx error page to the user.

Related docs

1. Define the origin server

In the Sudun console, you can configure the origin server by the following types:

IP address: Enter the public IPv4 or IPv6 address of the server.

Domain Name (FQDN): If the origin server is hosted on a cloud service provider (such as AWS S3 or Azure), use the domain name provided by the service provider.

2. Origin server protocol and port

Choose how Sudun communicates with the server:

HTTP (port 80): Standard unencrypted connection.

HTTPS (port 443): Encrypts the connection. Note: Your origin server must have a valid SSL certificate installed for it to take effect.

Protocol Following: Sundun will employ the same protocol (HTTP or HTTPS) used by end users to access the website.

3. Key Steps: IP Whitelist Setup

Download IP List: You can find the latest Sudun Edge IP list in the section.高级设置

Security Benefits: After setting a whitelist, you can configure the origin server to accept only traffic from Sudun IP addresses, effectively hiding the real server IP address and avoiding exposure to the public network.