Opennebula 5.12.0.3 error service novnc

hi every body
i have issue with novnc /var/log/one/novnc.log
10.10.10.10 - - [10/Apr/2021 07:57:56] 10.10.10.10: Plain non-SSL (ws://) WebSocket connection
10.10.10.10 - - [10/Apr/2021 07:57:56] 10.10.10.10: Version hybi-13, base64: ‘False’
10.10.10.10 - - [10/Apr/2021 07:57:56] 10.10.10.10: Path: ‘/?host=103.90.220.112&port=29876&token=o7l1i4xg1zwx7igz9dsk&encrypt=no&title=VM3&password=null’
10.10.10.10 - - [10/Apr/2021 07:57:56] connecting to: node02:5931
handler exception: [Errno 111] Connection refused

i check server listen
tcp 0 0 0.0.0.0:29876 0.0.0.0:* LISTEN 423463/python3

firewalld inactive.

pls help me checl

Hello @nguyen.tran

It seems that your host is refusing the connection, please check that connection to node02 port 5931 works, for example, running the command telnet node02 5931.

Best,
Álex.