tailieunhanh - Configuring Windows 7 (Training Kit) - Part 42

Configuring Windows 7 (Training Kit) - Part 42. This training kit is designed for IT professionals who operate in enterprise enviroments that use Windows 7 as a desktop operating system. You should have at least one year of experience in the IT field, as well as experience implementing and administering any Windows client operating system in a networked environment. | Lesson 1 Managing Windows Firewall The firewall that ships with Windows 7 is designed to keep your computer safe. It will help keep your computer safe when it is connected to the protected network in the office or the less-safe public WiFi networks of coffee shops and airport lounges. In this lesson you learn the differences between Windows Firewall and Windows Firewall with Advanced Security. You also learn about connection security rules which you can use to limit your computer s network communication so that it occurs only with other computers that have proven their identity. After this lesson you will be able to Configure rules for multiple profiles. Allow or deny applications. Create profile network-profile-specific rules. Configure notifications. Configure authenticated exceptions. Estimated lesson time 40 minutes Windows Firewall Firewalls restrict network traffic based on a collection of configurable rules. Another name for these rules is exceptions. When traffic reaches a network interface protected by a firewall the firewall analyzes it either discarding the traffic or allowing it to pass on the basis of the rules that have been applied to the firewall. Windows 7 uses two firewalls that work together Windows Firewall and the Windows Firewall with Advanced Security WFAS . The primary difference between these firewalls relates to the complexity of the rules that can be configured for them. Windows Firewall uses simple rules that directly relate to a program or service. WFAS allows for more complicated rules that filter traffic on the basis of port protocol address and authentication. WFAS will be covered in more detail later in this lesson. When thinking about how firewall rules work remember that unless a rule exists that explicitly allows a particular form of traffic the firewall will drop that traffic. In general you must explicitly allow traffic to pass across a firewall though there will be some occasions when you need to configure a deny rule. You .