** (UndefinedFunctionError) undefined function Hello.hello/1 (module Hello is not available) iex(three@host_b)3> Node.list [:one@huracan, :two@huracan] iex(three@host_b)4> Node.list |> Enum.map(fn(node) -> ...(three@host_b)4> Node.spawn_link(node, fn -> ...(three@host_b)4> Hello.hello('bar') end) ...(three@host_b)4> end) Hello bar, in one@huracan Hello bar, in two@huracan [#PID<8193.132.0>, #PID<9717.84.0>]