I'm trying to test a Udp port 1438 to a remote host with IP address
g.h.i.j from ESXi.
What's the syntax as can't find anything that mention where to
specify if it's Tcp or Udp. I recall in Redhat Linux it allow us to
specify Tcp or Udp:
usage: nc [-46DdhklnrStUuvzC] [-i interval] [-p source_port]
[-s source_ip_address] [-T ToS] [-w timeout] [-X proxy_version]
[-x proxy_address[:port]] [hostname] [port[s]]