Slashdot Mirror

← Back to Stories (view on slashdot.org)

P2P Through Firewalls

Posted by ryuzaki0 on from the file-in-hand-worth-two-in-the-network dept.

An anonymous submitter writes "A few stream-through-firewall applications have been announced recently. p2pnet has an interview with Ian Clarke about his new 'Dijjer' program, which promises to reduce bandwidth requirements from HTTP servers by transparently distributing the load. Slyck.com has an article about LimeWire's new version that offers firewall-to-firewall transfers (code here). [Both Dijjer and LimeWire are GPL'd.] There's also been a lot of discussion on the p2p hackers list about reliable UDP transfers."

2 of 220 comments (clear)

  1. security? by John+Seminal · · Score: 0, Redundant
    Dijjer uses "UDP hole punching" to allow it to operate from behind firewalls without any need for manual reconfiguration... With many P2P applications you must reconfigure your firewall to get the most out of them. Not so with Dijjer, we use state-of-the-art "NAT2NAT" techniques to get the most out of your internet connection without any reconfiguration.

    I am going to have to think about it before I install something that automatically reconfigures my firewall. NO!!

    And what is this "udp hole punching"??

    --

    Rosco: "If brains were gunpowder, Enos couldn't blow his nose."

  2. How? by iantri · · Score: 0, Redundant
    The article has absolutely no information in it.

    For those of us who can't read the code: how does this new feature work? How is it able to completely function behind a firewall?