Firewalls and Routers ?

Discussion in 'macOS' started by Washac, Mar 3, 2017.

  1. Washac macrumors 68020

    Washac

    Joined:
    Jul 2, 2006
    #1
    If I am using a router to connect to the net do I really need to use the Macs Firewall ?
     
  2. FreakinEurekan macrumors 68040

    FreakinEurekan

    Joined:
    Sep 8, 2011
    Location:
    Eureka Springs, Arkansas
    #2
    I don't use it with my desktop Macs on my home network. My router handles all firewall duties and I'm on secure Wi-Fi (I have guest Wi-Fi for others to use). I do enable Firewall on my MacBooks since I often use them on other networks.
     
  3. Fishrrman macrumors G4

    Fishrrman

    Joined:
    Feb 20, 2009
    #3
    I agree with Freak above.
    I use a router with NAT enabled, and that has proven to be enough firewall protection for me, for many years.
     
  4. KALLT macrumors 601

    Joined:
    Sep 23, 2008
    #4
    You don’t need it. Even in an untrusted network, the application firewall provides very little security, because all it does is block your applications from receiving inbound connections. Not all programs have this functionality to begin with, much fewer run or accept such connections by default, certainly not many system applications. Most of the latter are listed in System Preferences → Sharing (and should be turned off if you are not using them, especially when you are in an untrusted network). Nowadays, more and more such networking applications are sandboxed. That is the case for some system services and App Store applications.

    The application firewall is mostly there for you to control the behaviour of your own applications. It only makes sense to use it if you are actually intending to block certain programs from receiving inbound connections, otherwise it won’t really do anything.
     
  5. Washac thread starter macrumors 68020

    Washac

    Joined:
    Jul 2, 2006

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