What is the easiest way to do a direct file transfer of an extremely large file over the Internet?

Posted by Kenneth Cochran on Super User See other posts from Super User or by Kenneth Cochran
Published on 2009-08-26T19:34:31Z Indexed on 2010/03/16 0:10 UTC
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file-transfer

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software-rec

I would like to transfer a 20+ GB file to a friend. I would like it to:

Be fast
Ensure data integrity
Not require opening ports in either end's firewall
Be free
Not broadcast the file's existence to everyone on the Internet

I've looked a several technologies and nothing seems to fit:

Gnutella, BitTorrent, et al. satisfies 1, 2 and 4
JetBytes... 1, 3, 4 and 5
Yahoo Messenger, AIM, etc. 3, 4 and 5
FTP, SFTP... 1?, 4 and 5
rsync... 1, 2, 4 and 5

For a file this size speed and data integrity are the most important. No one wants a 20 GB file to fail a MD5 check after spending two days downloading it. Is there anything that meets all these requirements?

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