steve@ubuntudesktop:~$ nmap -p 28015 46.109.115.200
Starting Nmap 6.40 ( http://nmap.org ) at 2016-01-13 13:55 GMT
Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn
Nmap done: 1 IP address (0 hosts up) scanned in 3.03 seconds
steve@ubuntudesktop:~$