how to use this project in remote computer

Sir
I have installed this program in a Linux computer，it works well，but，when I want to open the URL:8899（URL is the address of Linux computer） on another computer in the same LAN，it cannot work，pls tell me how to resovle it

<img width="1290" height="1114" alt="Image" src="https://github.com/user-attachments/assets/df9f9f91-233b-4a5a-99f0-4d8d163a5255" />