Help Center/ Web Application Firewall/ FAQs/ Website Connect Issues/ What Can I Do If the Message "Illegal server address" Is Displayed When I Add a Domain Name?
Updated on 2024-10-31 GMT+08:00

What Can I Do If the Message "Illegal server address" Is Displayed When I Add a Domain Name?

Symptom

When a user adds a domain name to be protected, the system displays a message indicating that the origin server address is invalid.

Possible Causes

  • Server Address is set to a private IP address reserved for internal use.
  • The protected object and origin server addresses are set to the same IP address.

Handling Suggestions

Set Server Address to the actual origin server IP address (public IP address) or an independent back-to-source domain name, which cannot be the same as the protected domain name.