Hi @Nam-Vu, some example working configurations can be found here https://docs.nodebb.org/configuring/proxies/nginx/
If your config is not working, please paste it here for us to review. Thanks!
I follow this :
https://docs.nodebb.org/en/latest/configuring/proxies/nginx.html#configuration
But I get error each time refresh (F5).
Browser console output :
WebSocket connection to 'ws://188.166.229.163/socket.io/?EIO=3&transport=websocket&sid=272_fqLIM0WJupWXAAA1' failed: Error during WebSocket handshake: Unexpected response code: 400
Please help.