The Bitdefender firewall uses a set of rules to filter data transmitted to and from your system.
With Bitdefender 2018, users can manage the firewall rules controlling applications’ access to network resources and the Internet by following these steps:
1. Click the Protection icon on the left sidebar of the Bitdefender interface.
2. Click on VIEW FEATURES.
3. Click the Settings icon in the upper-right corner of the FIREWALL module.
4. Select the Rules tab. The programs for which rules have already been created will be displayed.
NOTE: Just click on an application to see the rules created for it. For each rule the following information is displayed: Network, Protocol, Traffic, Ports, IP, and Access.
In order to manage the rules, you will have to use the three buttons above the table: ADD RULE, RESET RULES.
5. To add an application rule, click the ADD RULE button. After that, a new window will appear.
6. Choose if the rule will apply to all applications or not by clicking on the switch situated in the upper section of the window.
7. Click on Browse and select the .exe file of the application the rule will apply to.
8. Select one of the available Permissions:
Allow: The specified application will be allowed network/Internet access under the specified circumstances.
Deny: The specified application will be denied network / Internet access under the specified circumstances.
9. Select the Network Type the rule will apply to. You can choose from the following: Any, Home/Office, or Public.
10. Next, you will have to select the IP Protocol the rule will apply to.
11. Finally, select the traffic direction the rule will apply to:
Outbound: The rule applies only for outgoing traffic.
Inbound: The rule applies only for incoming traffic.
Both: The rule applies in both directions.
NOTE: You can find more options in the Advanced tab. There, users can customize the following settings:
Custom Remote Address: Specify the remote IP address and port the rule applies to.
Custom Local Address: Specify the local IP address and port the rule applies to.