Firewall : Only Allow Essential Services...?

Discussion in 'macOS' started by fab5freddy, Feb 4, 2009.

  1. fab5freddy macrumors 65816

    fab5freddy

    Joined:
    Jan 21, 2007
    Location:
    Heaven or Hell
    #1
    In the MAC OS X Firewall Prefs, you can choose :
    Only Allow Essential Services.

    What does this exactly mean ?
    What are the essential services ?
     

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  2. ppc750fx macrumors 65816

    Joined:
    Aug 20, 2008
    #2
    "Essential services" will block most forms of inbound connection. (It's functionally equivalent to disabling all the checkboxes in the Tiger dialog.)

    Lord knows why they renamed it...
     
  3. drlunanerd macrumors 65816

    drlunanerd

    Joined:
    Feb 14, 2004
    Location:
    UK
    #3
    Because they changed its behaviour in 10.5.1 after a lot of criticism and some apps breaking.
     
  4. fab5freddy thread starter macrumors 65816

    fab5freddy

    Joined:
    Jan 21, 2007
    Location:
    Heaven or Hell
    #4
    Should you check this box when surfing on public wifi networks ?
     
  5. kolax macrumors G3

    Joined:
    Mar 20, 2007
    #5
    Just tick "Set Specific Applications".

    Then tick both options in the advanced window.
     
  6. fab5freddy thread starter macrumors 65816

    fab5freddy

    Joined:
    Jan 21, 2007
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    #6
    But When i tick "Set Specific Applications",
    do i have to choose the specific apps ?
     
  7. ppc750fx macrumors 65816

    Joined:
    Aug 20, 2008
    #7
    Only choose apps that you want to allow inbound connections to. (i.e. nothing, unless you have a specific reason to do otherwise.)

    And you don't need to enable logging (in the advanced pane) -- but I would recommend "Stealth Mode".
     
  8. fab5freddy thread starter macrumors 65816

    fab5freddy

    Joined:
    Jan 21, 2007
    Location:
    Heaven or Hell
    #8
    ok, so i think i get it now....

    you can surf the web fine without setting any apps
    to recieve inbound connections..?

    I guess if you are using an FTP app, would you
    have to allow the FTP app to access inbound connections ?
     
  9. ChrisA macrumors G4

    Joined:
    Jan 5, 2006
    Location:
    Redondo Beach, California
    #9
    No, if you were running an FTP server you'd need to open up the associated ports.

    Firewalls are a little bit over rated. They actually do nothing. You can have the FTP port open or closed and it makes zero difference if there is no software running that is listening on the open port. It's kind of like the barn door. If you have no animals in the barn the door open or shut does not matter, But many or even most people don't know what animals they have so shutting the door is recommended.
     
  10. fab5freddy thread starter macrumors 65816

    fab5freddy

    Joined:
    Jan 21, 2007
    Location:
    Heaven or Hell
    #10
    i was more thinking about runnning Transmit FTP
    just to upload and download from a server.....

    not to use the computer as an FTP server...

    Does that make a difference ?
     

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