Enhanced Firewall is a component of AVG Internet Security, which creates rules each time an application or process starts for the first time. These rules determine how Enhanced Firewall behaves toward each application or process when it connects to the internet or to another network. We recommend you only make alterations to application rules if you have advanced knowledge of firewall concepts. Enhanced Firewall is already configured to provide the appropriate firewall protection in most cases.
Default rules are created automatically for applications from known and trusted sources the first time you start the application after installing AVG Internet Security. Application rules are organized into predefined groups, according to application vendor. To add an application to an existing group:
To create a new group, click New Group, provide a name, then right-click the group to view more options.
You can set connection allowances for each application or process to determine how strictly Enhanced Firewall monitors incoming or outgoing communication.
Click a group (vendor) in the Application column, then use the orange bars in the Allowed connections column to set the authorization level for a specific application:
NOTE: The networks referred to as 'Friends', are any networks outside of your current network that are considered trusted by Enhanced Firewall. These networks are automatically identified and exempt from default Enhanced Firewall restrictions when your current network profile is set to Private. When Enhanced Firewall is set to the Public profile, the default higher level of security is applied to all networks, including the 'Friends' networks.
In addition to defining the types of connections you authorize for applications or processes, you can also specify how Enhanced Firewall behaves when it detects a non-authorized connection. To define Enhanced Firewall behavior for a non-authorized connection:
For more information about network profiles, refer to the following article:
Tighten rule restrictions further by specifying the network ports each application uses for communication when an incoming or ongoing connection is allowed. To specify authorized ports:
NOTE: Different application or process types require different ports. For example, for internet browsers, port 443 is the default port used for HTTPS (secure HTTP), and port 80 is the most commonly used port for HTTP (unsecured), therefore the application rules port entry is 443,80. For information about the correct network port to specify for an application, contact the application vendor or refer to the application's documentation or support pages.
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