cfx distributed parallel running problem in linux
 

After i set up of the ssh of my computers,i run cfx distributed parallel computing,there is a error shows:

The IP address of the master host 'node10', according to the
gethostbyname() system call, is the local loopback address 127.0.0.1. This
may prevent distributed parallel runs from working. The IP address
reported for this host should be its externally-visible network IP address,
and can be checked using Show>System in the CFX-13.0 Launcher or the
command
cfx5info -host-addr node10


how to avoid this problem?thanks!