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37 lines
1.9 KiB
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Useless Trivia
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==============
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This section written by the original author, Avery Pennarun
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<apenwarr@gmail.com>.
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Back in 1998, I released the first version of `Tunnel
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Vision <http://alumnit.ca/wiki/?TunnelVisionReadMe>`_, a semi-intelligent VPN
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client for Linux. Unfortunately, I made two big mistakes: I implemented the
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key exchange myself (oops), and I ended up doing TCP-over-TCP (double oops).
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The resulting program worked okay - and people used it for years - but the
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performance was always a bit funny. And nobody ever found any security flaws
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in my key exchange, either, but that doesn't mean anything. :)
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The same year, dcoombs and I also released Fast Forward, a proxy server
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supporting transparent proxying. Among other things, we used it for
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automatically splitting traffic across more than one Internet connection (a
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tool we called "Double Vision").
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I was still in university at the time. A couple years after that, one of my
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professors was working with some graduate students on the technology that would
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eventually become `Slipstream Internet Acceleration
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<http://www.slipstream.com/>`_. He asked me to do a contract for him to build
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an initial prototype of a transparent proxy server for mobile networks. The
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idea was similar to sshuttle: if you reassemble and then disassemble the TCP
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packets, you can reduce latency and improve performance vs. just forwarding
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the packets over a plain VPN or mobile network. (It's unlikely that any of my
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code has persisted in the Slipstream product today, but the concept is still
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pretty cool. I'm still horrified that people use plain TCP on complex mobile
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networks with crazily variable latency, for which it was never really
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intended.)
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That project I did for Slipstream was what first gave me the idea to merge
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the concepts of Fast Forward, Double Vision, and Tunnel Vision into a single
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program that was the best of all worlds. And here we are, at last.
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You're welcome.
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