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  1. #1


    Member Since
    Dec 06, 2011
    Posts
    11
    Specs:
    13" MBP 2.26 GHz Intel Core 2 Duo 4 GB 1067 MHz DDR3 RAM v10.7.2
    Random Firewall Notification?
    Once in a while now I keep getting a random firewall notification that only shows up for a split second before going away.

    I can't catch a screenshot of the thing because it happens at random times of the day and I never know when it will show up.

    Is this normal after you get Lion or am I seeing something that could be serious in the future?
     13" Macbook Pro (Late 2009, OS X Lion)
     32 GB iPod Touch (3rd gen)
     8 GB iPod Nano (blue, 3rd gen)

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    50,183
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    Are you using a router with your system? All modern routers incorporate NAT (Network Address Translation) which acts as a firewall. Some routers are even more sophisticated and come with a hard wired firewall.

    What I'm getting at it is, you may not even need to keep your firewall on. I have had mine turned off from day one.

  3. #3


    Member Since
    Dec 06, 2011
    Posts
    11
    Specs:
    13" MBP 2.26 GHz Intel Core 2 Duo 4 GB 1067 MHz DDR3 RAM v10.7.2
    Quote Originally Posted by chscag View Post
    Are you using a router with your system? All modern routers incorporate NAT (Network Address Translation) which acts as a firewall. Some routers are even more sophisticated and come with a hard wired firewall.

    What I'm getting at it is, you may not even need to keep your firewall on. I have had mine turned off from day one.

    Yes I'm wirelessly connected to a router, but I've had my firewall on since March of last year and nothing started happening until now so that's what's getting me.
     13" Macbook Pro (Late 2009, OS X Lion)
     32 GB iPod Touch (3rd gen)
     8 GB iPod Nano (blue, 3rd gen)

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    50,183
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    Turn the firewall off as you don't need it since you're connected through a router. Just be sure to use the most secure encryption scheme for wireless which is WPA2.

  5. #5


    Member Since
    Dec 06, 2011
    Posts
    11
    Specs:
    13" MBP 2.26 GHz Intel Core 2 Duo 4 GB 1067 MHz DDR3 RAM v10.7.2
    Quote Originally Posted by chscag View Post
    Turn the firewall off as you don't need it since you're connected through a router. Just be sure to use the most secure encryption scheme for wireless which is WPA2.
    Our ISP as our router set up as WPA2 so I'm all set!

    Thanks!
     13" Macbook Pro (Late 2009, OS X Lion)
     32 GB iPod Touch (3rd gen)
     8 GB iPod Nano (blue, 3rd gen)

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