# Configure an Origin Server

1. Click one domain name on the domain list.

   <figure><img src="/files/qSe1AoYrV80C5DPkdr4F" alt=""><figcaption></figcaption></figure>
2. Click **Origin Config**. You can modify the origin server, and upstream port.

   <div align="left"><figure><img src="/files/6TtAMtkSj8AWk4ImKxbe" alt="" width="407"><figcaption></figcaption></figure></div>

   **Origin Priority**\
   \- Primary Origin: The address of a basic origin is the default address of the origin server used for back-to-origin routing.\
   \- Secondary Origin: When the primary origin server cannot be connected, the second origin server will be activated.


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