Block outgoing traffic on specific ports?

Discussion in 'Mac Apps and Mac App Store' started by powerbook911, May 25, 2009.

  1. powerbook911 macrumors 68040


    Mar 15, 2005

    I need to block outgoing traffic on specific ports. Is there anything default in OS X to do this? If not, what application could I use? I'd prefer to use the OS, if it has an ability to do this.

    Many thanks!
  2. MarkMS macrumors 6502a

    Aug 30, 2006
    I think that you can use ipfw within Terminal. You can use WaterRoof, which is ipfw with a nice frontend interface and easier to use instead of Terminal.

    Or you can use LittleSnitch (shareware). A little expensive compared to the free ipfw command, but it's worth every penny in my opinion.
  3. amd4me macrumors 6502

    Nov 19, 2006
  4. MAC-PRO-DEMON macrumors 6502a


    Jul 10, 2008
    Up north in Yorkshire :)
    LittleSnitch if you really want to Block it... but I think that you can also do that with NetBarrier..
  5. Jethryn Freyman macrumors 68020

    Jethryn Freyman

    Aug 9, 2007
    IPFW + Waterroof is a good combo. You can block incomng/outgoing traffic with it on specific ports.

    LS is good too. It blocks only outgoing connection on an application by application basis, not on specific ports.

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