Firewall

for Windows and Linux

The Firewall blocks unauthorized connections to the computer while working on the Internet or local network. The Firewall also controls the network activity of applications on the computer. This allows you to protect your corporate LAN from identity theft and other attacks. The component provides computer protection with the help of anti-virus databases, the Kaspersky Security Network cloud service, and predefined network rules.

Firewall settings for Pro View

Parameter

OS

Description

Network packet rules

Windows

Linux

Table with a list of network packet rules. Network packet rules serve to impose restrictions on network packets, regardless of the application. Such rules restrict inbound and outbound network traffic through specific ports of the selected data protocol.

The table lists pre-configured network packet rules that are recommended by Kaspersky for optimum protection of the network traffic of computers that run on Microsoft Windows and Linux operating systems.

Firewall sets the execution priority of each network packet rule. Firewall processes network packet rules in the order in which they appear in the list of network packet rules, from top to bottom. Firewall locates the topmost network packet rule that is suitable for the network connection and applies it by either allowing or blocking network activity. Firewall then ignores all subsequent network packet rules for the specific network connection.

Network packet rules have a higher priority than network rules for applications.

Available networks

Windows

Linux

This table contains information about network connections that Firewall detects on the computer.

The Public network status is assigned to the Internet by default. You cannot change the status of the Internet.

The following network connection types are available:

  • Public network. The network is not protected by antivirus applications, firewalls, or filters (such as Wi-Fi in a cafe). When the user operates a computer that is connected to such a network, Firewall blocks access to files and printers of this computer. External users are also unable to access data through shared folders and remote access to the desktop of this computer. Firewall filters the network activity of each application according to the network rules that are set for it.
  • Local network. Network for users with restricted access to files and printers on this computer (such as for a corporate LAN or home network).
  • Trusted network. Safe network in which the computer is not exposed to attacks or unauthorized data access attempts. Firewall permits any network activity within networks with this status.

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