Second node on same host

Hi,

for the second node on same host we should use this: "p 28968:28967/tcp -p 28968:28967/udp "

But what happens if we are using this: "p 28968:28968/tcp -p 28968:28968/udp "

Does the node running fine with 28968:28968 ?

No.

You can do it, but you need to either modify your config.yaml or use option --server.address to listen a different port. But - why?
Just use a port mapping option in your docker run command and change only port number for your host, like -p 28968:28967/tcp -p 28968:28967/udp