About the pit of firewall opening 8848 when Nacos is started

problem

 Recently played nacos When , Need to start the 8848 port . I open it directly in the security group , Found no ; Later on firewall Open in , It's still useless 

terms of settlement

firewall about docker With a special scope , You need to develop ports under this domain 

firewall-cmd --add-port=8848/tcp --zone=docker

Check to see if it opens

firewall-cmd --query-port=8848/tcp --zone=docker
no