I am training a network on 2 machines each machine consists of two GPUS. I have checked the port number but it changes every time when I restart the process and I am not sure whether I am doing the right or wrong way.
How I can check the free port number? Is this the correct way?
sudo lsof -i :22 | grep LISTEN
sshd 1930 root 3u IPv4 57569 0t0 TCP *:ssh (LISTEN)
sshd 1930 root 4u IPv6 57571 0t0 TCP *:ssh (LISTEN)