root@kali:~/ohm/tcp_bind# netstat -tlpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:5000            0.0.0.0:*               LISTEN      4933/./tcp_bind     
root@kali:~/ohm/tcp_bind# nc -nv 127.0.0.1 5000
(UNKNOWN) [127.0.0.1] 5000 (?) open
whoami
root
exit
root@kali:~/ohm/tcp_bind# 

