How to Ddos a Minecraft Server?

Download the official minecraft server using this link:
https://s3.amazonaws.com/...Server.exe

After that make a new folder anywhere you want, and put the downloaded Minecraft_Server.exe file into it.

Double click on the file and wait.

If you want people outside your own internet to be able to connect to your server you must "open a port." The easiest way to do EXACTLY what this guide says:
http://www.minecraftwiki.net/wiki/Tutorials/Setting_up_a_server#Port_forwarding

Your minecraft server is now up and running!

If you want users to be able to type in some words instead of gibberish numbers, you can use this tool:
http://www.noip.com/

This tool is also useful for making websites, as seen here:
http://lazersmoke.no-ip.org/