getPrinters() returns no printers when I use 192.168.0.213 instead of 127.0.0.1

[whatoeat2night]

cupsClient return no printers when I change no connection ip to 192.168.0.213 (the server address which has cups running).
After I change it to 127.0.0.1, it works great.
Also, I can get all printers when I open 192.168.0.213:631 from Chorme. What is the reason for it? Anyone can help>

[whatoeat2night]

[06/Oct/2022:16:17:32 -0700] [Client 21] Returning IPP successful-ok for CUPS-Get-Printers (http://192.168.0.213/printers) from 192.168.0.213.
4:22
D [06/Oct/2022:16:16:12 -0700] [Client 20] Returning IPP successful-ok for CUPS-Get-Printers (http://127.0.0.1/printers) from localhost.

[whatoeat2night]

The above logs are coming from cups logs. Is there any hit for this?

[harwey]

You can configure your CUPS server to listen on different interfaces. Please read the docs of your CUPS server.

[MrMao14]

@harwey @whatoeat2night
It just a error solution !!!
Finally i solved it by Nginx

this is my nginx config

server{
    listen 632;
    access_log /var/log/nginx/cups_access.log;
    error_log /var/log/nginx/cups_error.log;

    location / {
            proxy_pass  http://127.0.0.1:631/;
    }

}

I have try to listen new port 632 proxy to 127.0.0.1:631 its down
i dont know why? maybe cups web open in windows different from linux :) 💯