# netcat -v -w 1 localhost -z 1-3000 2>&1 | grep succeeded
Connection to localhost 22 port [tcp/ssh] succeeded!
Connection to localhost 23 port [tcp/telnet] succeeded!
Connection to localhost 111 port [tcp/sunrpc] succeeded!
Connection to localhost 631 port [tcp/ipp] succeeded!
Connection to localhost 2049 port [tcp/nfs] succeeded!
