Windows Firewall Advanced Options Sau khi kích hoạt Windows Firewall, bạn có thể cần phải cấu hình nó cho một tình huống cụ thể. Bạn có nhiều lựa chọn để cấu hình các tùy chọn Windows Firewall, bao gồm những điều sau đây: | Lesson 2 Using Event Viewer 18-13 2. In the Control Panel window click Performance And Maintenance. 3. In the Performance And Maintenance window click Administrative Tools. 4. In the Administrative Tools window double-click Event Viewer. 5. In the left pane click the log you want to view. Windows displays the events in the log file in the right window as shown in Figure 18-7. Figure 18-7 Use Event Viewer to view information contained in Windows XP Professional logs. You will encounter five types of events in the logs you view in Event Viewer. A unique icon identifies each event type so that you can easily distinguish between entries. The five types of events you will encounter are as follows Error This type of entry indicated by an icon with a red X means that a significant problem has occurred such as a service that might not have started properly. Warning This type of entry indicated by an icon with a yellow exclamation point means that an event has occurred that is not currently detrimental to the system but might indicate a possible future problem. Information This type of entry indicated by an icon with a blue i means that a successful operation has occurred. For example a service starting successfully might trigger this type of event. Audit Success This type of entry indicated by a key icon means that an audited security access attempt for example a successful logon to the system was successful. Audit Failure This type of entry indicated by a lock icon means that an audited security access attempt for example a failed attempt to open an audited file or directory was not successful. 18-14 Chapter 18 Using Windows XP Tools How to View an Event Double-click any event in the right pane of Event Viewer to open the Event Properties dialog box see Figure 18-8 which shows a description of the event. The up and down arrow buttons let you move through the events in the log without having to close the Event Properties dialog box and then reopen it for each event you .
