Listening with nc:
nc -l 8089
Checking that 8089 port is listening:
netstat -nap|grep 8089 (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) tcp 0 0 0.0.0.0:8089 0.0.0.0:* LISTEN 27543/nc tcp 0 0 127.0.0.1:8089 127.0.0.1:43592 TIME_WAIT -
Sending data to 8089 port:
telnet localhost 8089 Trying 127.0.0.1... Connected to localhost.localdomain (127.0.0.1). Escape character is '^]'. hello