On Suse Linux Enterprise Server 12 SP2, use nc command to listen port 8088
nc -l -p 8088
but meet below message:
This is nc from the netcat-openbsd package. An alternative nc is available
in the netcat-traditional package.
usage: nc [-46DdhklnrStUuvzC] [-i interval] [-P proxy_username] [-p source_port]
[-s source_ip_address] [-T ToS] [-w timeout] [-X proxy_protocol]
[-x proxy_address[ort]] [hostname] [port[s]]

So may I ask what's the right command to run listen a port using netcat so that can use telnet to test the connectivity between servers.