questions about nmblookup and DirectoryService

Discussion in 'Mac Basics and Help' started by orijinal, Jan 30, 2008.

  1. orijinal macrumors 6502


    Jun 6, 2005

    I have Little Snitch running on my Mac, and I notice most of the programs that are soliciting connections are those I have seen before, but some I'm still wondering what they're exactly doing.

    "DirectoryService" connects to (I'm on a wireless router, if this helps).

    "Finder via nmblookup" was connecting to :

    Can anyone tell me what these processes are, and what they're doing?
  2. robbieduncan Moderator emeritus


    Jul 24, 2002
    Learn to use the man command line tool :p

    man DirectoryService tells us :

    DirectoryService -- DirectoryService daemon (a part of Mac OS X's Open Directory architecture)

    then a lot of descriptive text

    man nmblookup tells us :

    nmblookup - NetBIOS over TCP/IP client used to lookup NetBIOS names

    So this would be looking up the names of shared Windows computers/Macs with Windows sharing on.
  3. orijinal thread starter macrumors 6502


    Jun 6, 2005
    Oh, I've done a ton of research on both... but all in this network jargon I can't understand. why would Finder be doing this? i don't have anything else on my WiFi besides myself and my xbox... the finder is also doing this randomly. I only have safari/ichat running. Does your nmblookup connect randomly?
  4. Wanderer509 macrumors member

    Oct 28, 2007
    i too have a question about nmblookup. i dont know where it came from, it just happened one day! anyways i do have a windows computer on wireless router network as well as a ps3. any helps? thanks! i am on 10.5.1 leopard n it asks me about nmblookup connection access when i start up
  5. Kabeyun macrumors 65816


    Mar 27, 2004
    Eastern USA
    I tried disabling it in the Little Snitch Config app, and I was warned not to disable a protected rule, necessary for smooth system operation. Still don't know where it came from.

  6. djfour macrumors newbie

    Oct 19, 2009
    anything bad happen from blocking finder via nmblookup?

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