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How Skype Punches Holes in Firewalls

Posted by CmdrTaco on from the i-thought-it-used-a-hammer dept.

An anonymous reader writes "Ever wondered, how P2P software like Skype directly exchanges data — despite the fact, that both machines are sitting behind a firewall that only permits outgoing traffic? Read about the hole punching techniques, that make a firewall admin's nightmares come true."

3 of 215 comments (clear)

  1. Ever wondered by spun · · Score: 5, Funny

    Ever wondered, how to use, commas properly?

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    - None can love freedom heartily, but good men; the rest love not freedom, but license. -- John Milton
    1. Re:Ever wondered by CODiNE · · Score: 5, Funny

      Don't tease, those, who have graduated, from the Shatner, School of Grammar.

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      Cwm, fjord-bank glyphs vext quiz
  2. Re:DS by MyLongNickName · · Score: 5, Funny

    I wish my nintendo DS did this, so I could play metroid at work.

    And if you could disguise it to look like a cash register, your customers would have no idea you weren't ringing up their Happy Meal.

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    See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year