HA!
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You know, I work on govm't computer networks for a living, and I hope you know what you are doing is a FELONY. NASA networks, in this case at the Goddard Space Flight Center, are monitored. If they have their shit straight, some IDS box already has seen you trying to connect over and over again. I certainly hope you don't succeed, cuz these people from a place called the FBI are going to come to your house and want to "have a chat" with you if you do.
Just stop now bro. It's not worth it. If you are juvie, even worse. This shit gets tried as an adult almost all of the time, and can seriously impact your life for years to come.