Re: wrapper script to use cvs/scp through a ssh gateway

From: Darren Tucker (dtucker_at_gate.dodgy.net.au)
Date: 09/29/05

  • Next message: Ron!: "Re: wrapper script to use cvs/scp through a ssh gateway" 
    Date: 29 Sep 2005 03:50:21 GMT

    On 2005-09-29, Ron! <anemail@spam.net> wrote:
    [stacked ssh connections]
    > not only that, but if that's the option, mine as well use a modem because of
    > the performance impact (i know, text, small issue, but it would be an issue
    > to me, especially of your additionally going to port forward)...

    "Stacking" connections as opposed to "chaining" connections represent
    the same crypto load but distributed differently.

    Assume you have N connections (N+1 hosts). In the topology: A -> B -> C,
    N == 2.

    For a "chain", A encrypts, B decrypts then encrypts and C decrypts
    (ie A->B and B->C). That's 2N encrypts and 2N decrypts.

    For a "stack", A encrypts then encrypts again, B decrypts and C decrypts
    (ie A->B and A->C). Also 2N encrypts and decrypts. The key exchanges
    are also A->B and A->C though, so if there's a significant latency
    between A->B then this might be noticable. 

    -- 
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
  • Next message: Ron!: "Re: wrapper script to use cvs/scp through a ssh gateway"

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