防火墙策略（Firewall policy）.doc

防火墙策略（Firewall policy） Firewall policy options 1, overview The most important feature and the most important function of OP firewall is its unique network access policy. The strategy here refers to a basic behavior in which firewalls control the data in and out of a computer. For example, the Block Most policy of the OP firewall means that you set a suspicious attitude to the firewall, and Allow Most is more trusting of the firewall. The main policy for the OP firewall is shown below: Icon strategy describe Block All All network connections (access to computer connections) are blocked Block Most In addition to the global rules and the explicit connections allowed by the program rules, the rest of the connections are blocked. Rules Wizard This policy helps determine how a software should be connected to other software and computers for the first time. Allow Most In addition to global rules and program rules, the rest of the connections are allowed. The icon corresponding to the OP firewall icon will appear on the system tray. The default icon of the system is shown below: Note: if the firewall is in background mode, the icon will not appear. 2, how to change the current firewall policy Method 1: (1) click the setting button on the toolbar (2) select the firewall page (3) slide the slide button in the following figure to adjust Method two is shown in the following picture: right-click the firewall icon in the tray Note: if the disabled firewall is, then its detection (attack) will not work. 3. Stealth mode (hidden mode) under firewall operation By default, the OP firewall performs a hidden mode (stealthily). This means that your computer does not respond to port scans, but silently blocks it so that your port is not visible to the hacker. Typically, when your computer requests a connection to a port that does not have access to data connections, the firewall prohibits other computers from accessing the port. In this mode, the OP firewall will not react as if he had no