Network application security issues cannot be ignored, and firewalls have become one of the essential software tools. The new cross-platform operating system Windows 8 comes with a firewall that is feature-rich and easy to use, making it easy to secure system and network applications.
Press "Win+W" to enter the setting search interface of Win8 system (touch screen user can swipe from the right side of the screen to the middle and select search from the charm menu), enter the keyword "firewall", and the Windows Firewall will appear on the left side. Allows applications to pass through Windows Firewall, check firewall status and other related search results.
Keyboard users can also press the "Win+X" key combination to open the Win8 quick link menu, and then open "Control Panel - System and Security - Windows Firewall", and also quickly open the firewall settings interface of the Win8 system.
Entering the Win8 system comes with a firewall setting interface, we can see some basic conditions of the current system firewall settings, such as whether the firewall is enabled, the current active network, notification status, and so on.
Win8 Firewall settings interface on the left pane lists all firewall-related operations, such as "permit application or feature through Windows Firewall", "change notification settings", "enable or disable the firewall." , "Restore Defaults", and "Advanced Settings". Below we introduce separately.
Allowing apps or features to pass the Win8 firewall The Win8 firewall supports detailed personalization of apps, allowing users to individually allow a program to communicate through a firewall. Click "Allow apps or features through Windows Firewall" in the left pane of the Firewall Settings window to enter the "Allowed Apps" interface, which lists the network applications and functions of the system. We can check or check the box here to allow or Block the communication state of an application or feature on a private or public network. If you need to add an app or feature that allows you to pass the Win8 firewall, you can set the app or feature that needs to pass through the firewall by first clicking the "Change Settings" button in the upper right corner and then clicking the "Allow Other Apps" button in the lower right corner. After entering the "Add Application" interface, we can manually select the application in the program list. If some programs do not appear in the list, you can also manually select the address of the program by clicking the "Browse" button. Let's take a look at the custom settings of the Win8 firewall, where you can change the notification settings, turn the firewall on and off. Change notification settings Turn the firewall on and off Click "Change Notification Settings" and "Enable or Disable Firewall" in the left pane of the Win8 Firewall Settings interface to open the Custom Settings interface of the Win8 firewall. Here, users can set different security rules for private networks and public networks. There are two options for "Enable Windows Firewall" and "Turn off Windows Firewall" in each network. If you need to turn off the Win8 firewall, you can set it here, but for system and network security, it is not recommended to turn off the firewall. There are two checkboxes under "Enable Windows Firewall", one is "Block all incoming connections, including programs in the list of allowed programs", and the other is "Notify me when Windows Firewall blocks new programs." When the user enters a less secure network environment, you can check the "block all incoming connections" check box to block all external connections, even if the Windows firewall is set to "exception" services will be blocked, complicated Computers in the environment easily provide tight security. Win8 Firewall Advanced Settings If you encounter some complicated situations, such as online multiplayer games, you may need to open a special port for the game application, so that the firewall can allow game information to reach your computer, you need to enter the Win8 firewall advanced settings. Click on "Advanced Settings" in the left pane of the Win8 Firewall Settings screen. You may be asked to provide an administrator password or confirm your choice. In the left pane of the Advanced Security Windows Firewall dialog, there are options such as Inbound Rules, Outbound Rules, Connection Security Rules, and Monitoring. The Win8 firewall supports two-way protection, which can filter outbound and inbound traffic. Users can create firewall rules for various objects to determine whether to block or allow them to pass. When configuring rules, users can choose from various standards: application name, system service name, TCP port, UDP port, local IP address, remote IP address, configuration file, interface type (such as network adapter), user , user groups, computers, computer groups, protocols, ICMP types and other rules, the function is very rich and powerful. In addition, if you need to restore the default settings of the Win8 firewall, click "Restore Defaults" in the left pane of the Win8 Firewall Settings interface, it is simple and convenient.