I have mosh installed in the server and client, I type mosh -p xxxx user@xxx.xxx.xx.xx but following error shows up:

usr/local/bin/mosh: Could not connect to 210.16.120.32, last tried 210.16.120.32: IO::Socket::INET: connect: Connection refused ssh_exchange_identification: Connection closed by remote host /usr/local/bin/mosh: Did not find remote IP address (is SSH ProxyCommand disabled?).

server in centOS 7.0 and connecting from osx Mojave