Zafi.b windows firewall

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Windows Defender Firewall with Advanced Security provides host-based, two-way network traffic filtering and blocks unauthorized network traffic flowing into or out of the local device. Configuring your Windows Firewall based on the following best practices can help you optimize protection for devices in your network.

See also Open Windows Firewall. When you open the Windows Defender Firewall for the first time, you can see the default settings applicable to the local computer. The Overview panel displays security settings for each type of network to which the device can connect. Domain profile : Used for networks where there is a system of account authentication against a domain controller DC , such as an Azure Active Directory DC. Private profile : Designed for and best used in private networks such as a home network.

Public profile : Designed with higher security in mind for public networks like Wi-Fi hotspots, coffee shops, airports, hotels, or stores. View detailed settings for each profile by right-clicking the top-level Windows Defender Firewall with Advanced Security node in the left pane and then selecting Properties. Maintain the default settings in Windows Defender Firewall whenever possible. These settings have been designed to secure your device for use in most network scenarios.

One key example is the default Block behavior for Inbound connections. In many cases, a next step for administrators will be to customize these profiles using rules sometimes called filters so that they can work with user apps or other types of software.

For example, an administrator or user may choose to add a rule to accommodate a program, open a port or protocol, or allow a predefined type of traffic.

The interface for adding a new rule looks like this:. This article does not cover step-by-step rule configuration. In many cases, allowing specific types of inbound traffic will be required for applications to function in the network. Administrators should keep the following rule precedence behaviors in mind when allowing these inbound exceptions.

More specific rules will take precedence over less specific rules, except in the case of explicit block rules as mentioned in 2. For example, if the parameters of rule 1 includes an IP address range, while the parameters of rule 2 include a single IP host address, rule 2 will take precedence. Because of 1 and 2, it is important that, when designing a set of policies, you make sure that there are no other explicit block rules in place that could inadvertently overlap, thus preventing the traffic flow you wish to allow.

A general security best practice when creating inbound rules is to be as specific as possible. However, when new rules must be made that use ports or IP addresses, consider using consecutive ranges or subnets instead of individual addresses or ports where possible.

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Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it. A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:. First check if your F-Secure security program is using the latest detection database updates , then try scanning the file again.

After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis. NOTE If the file was moved to quarantine , you need to collect the file from quarantine before you can submit it.

If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product. Note You need administrative rights to change the settings. Find the latest advice in our Community.