FTP attack

I use FreeBSD 7 and today I see my log about FTP and I see many people try connect to my FTP server , and they can not , I think I have FTP attack like SSH attack
Can I block FTP attack without Firewall , I use denyhost for SSH attack .
Can I find package for FTP attack ???
I use
mfaridi, you should really just use a firewall... It is designed for this. That said I'm not sure of any FTP packages that use tcpwrappers. A quick google for something like "FTP server tcpwrappers" should help you along your quest.