Do I Need Firewall With Free Avast For Mac

Antivirus for Mac cheat sheet

  • Best paid antivirus for Mac:Sophos Home Premium for Mac[sophos.com]
  • Best free antivirus for Mac:Avast Free Mac Security[avast.com]

Do I Need A Firewall With Free Avast

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  • A nearly perfect score on macOS malware detection
  • Ransomware monitoring
  • Native browser plug-in or system-level Web proxy
  • A high score on Windows malware detection

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Create a new application rule

  1. Open the Avast user interface and go to Protection ▸ Firewall.
  2. Click Application settings at the bottom of the screen.
  3. Click New application rule and select a group (vendor).
  4. Locate and select the executable file of the application you want to add.
  5. Click the group name, then use the orange bars to indicate the level of access you want to allow.

Adjust access restrictions

  • One bar (Friends out): outgoing connections with Friends networks only.
  • Two bars (Friends in/out): incoming and outgoing connections with Friends networks only.
  • Three bars (Internet out): all outgoing connections to the internet.
  • Four bars (Friends in and Internet out): incoming connections with Friends networks only, and all outgoing connections to the internet.
  • Five bars: (All connections): all incoming and outgoing connections to the internet.
  • To Block all connections for an application, hover your cursor over the orange bars and click the red block symbol that appears.

Set actions for unauthorized connections

  1. Click a group (or vendor name) in the Application column to open the list of applications or processes in that group.
  2. Select an application or process to expand its individual communication settings.
  3. Use the drop-down menu to manage the program’s behavior. The following behaviors are available:
  • Default rule: Firewall decides to allow or block connections based on the settings of the active Firewall Network profile (Private or Public).
  • Auto-decide: Firewall allows connections with verified applications, but blocks connections from unknown or suspicious applications.
  • Block: Firewall blocks all other connections.
  • Ask: Firewall asks you to decide if you want to allow or block a connection each time a new request is received. Selecting this option may result in frequent and potentially obtrusive alerts.
  • Private: a lower level of security suitable for when your PC is connected to a trusted network such as your home or work network. This profile enables better connectivity, and permits all communication within the network.
  • Public: a higher level of security suitable for when your PC is connected to a public network such as in a cafe or airport. Because public networks present greater security risks, no incoming communication is permitted when this profile is set.

Specify authorized ports

  1. Click a group (or vendor name) in the Application column to open the list of applications or processes in that group.
  2. Select an application or process to expand its individual communication settings.
  3. Specify the Outbound ports and Inbound ports that you allow the application or process to communicate with. Specify ports in the following ways:
  4. Type specific port numbers into the text box. For multiple ports, separate each port number with a comma.
  5. Select All from the drop-down menu to authorize communication with all ports.
  6. Select a predefined port number from the drop-down menu.
  7. Optionally, configure Packet rules from the Application rules screen by following steps 1–2 above, then clicking Packet rules. While Firewall uses Application Rules to control traffic according to individual rules for programs or services, Packet rules can also be configured to control network traffic using specified connection parameters. Packet rules enable you to view and manage Firewall rules according to the information contained in network packets, such as network protocols, source or destination IP addresses, or local and remote ports.
  • Avast Premium Security 19.x
  • Avast Omni 1.x
  • Avast Premier 19.x
  • Avast Internet Security 19.x
  • Microsoft Windows 10 Home / Pro / Enterprise / Education — 32 / 64-bit
  • Microsoft Windows 8.1 / Pro / Enterprise — 32 / 64-bit
  • Microsoft Windows 8 / Pro / Enterprise — 32 / 64-bit
  • Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate — Service Pack 1, 32 / 64-bit

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