SOLDIERX.COM Nobody Can Stop Information Insemination

So, I just set my own FTP server using Filezilla Server edition and have not even had the thing up for 2 days. Now some dude at the IP 121.10.160.178 was trying to log into my server as the administrator. I trace this IP and it comes to some random small place just outside of Hong Kong. I was just wondering if there was anything that you guys suggest doing to help prevent this. I already banned his IP, but I am sure that will not be enough to keep the good people out. I am a little ticked off at the moment because, as I stated earlier, I haven't even had this thing up for more than 2 days, and now someone is already trying to hack in. Let me know if any of you guys have any suggestions on making this thing more invisible and more secure. Thanks in advance.