freeware firewall

Enterprise-class firewall is the current financial, telecommunications and government agencies to protect the internal network security of choice products, according to the statistics of the share of nearly 70%. However, what the firewall is doing, can protect against what network attack behavior, perhaps not for everyone to understand. Now let's look at the purpose and function of the

The firewall consists of 4 parts of service access policy, verification tool, packet filtering and application gateway, which is a software or hardware between the computer and the network to which it is connected (in which the hardware firewall is rarely used only by the Ministry of Defense, because it is expensive). All network traffic that is flowing into and out of the computer passes through this

　　 to set the Win7 firewall steps: 　　1. Startup of Windows 7 firewall On the Windows 7 desktop, click the Start menu to enter Control Panel, and then locate the Windows Firewall feature. 　　2. Basic setup of Windows 7 firewall If the firewall is not set up, prevent the ne

Today, knowledgeable hackers can use the network firewall open ports, cleverly escaped the network firewall monitoring, directly targeted applications. They come up with sophisticated methods of attack that can bypass traditional network firewalls. According to expert statistics, 70% of the current attack is occurring in the application layer, not the network layer. For this kind of attack, the traditional

Firewall is the first barrier to protect our network, if this line of defense is lost, then our network is dangerous! So we need to pay attention to the installation of firewall considerations! 1. The firewall has implemented your security policy. The firewall reinforces some security policies. If you don't have a secu

This article to introduce some practical knowledge, that is how to configure the security policy in fire. However, it should be noted that the specific configuration of the firewall is not uniform, do not say that different brands, is the same brand different models are not exactly the same, so this can only be some general firewall configuration methods for a basic introduction. At the same time, the speci

Xu Hongtao Internet Security System (China) Co., Ltd. With the rapid development of global information wave represented by Internet, network security has also become an important problem affecting network efficiency. As the main means to prevent hacker intrusion, network firewall has become the necessary equipment for network security construction. At present, there are a lot of network firewall products, t

Windows system: KfW function Introduction: KfW Shield Firewall website is a security platform for a variety of web sites, information platforms, Internet services, etc., integrated with a variety of functional modules. The software is a complete knowledge of the copyright firewall, the use of the most advanced third-generation firewall technology "DataStream f

Now the market on the firewall, UTM products from its architecture, is probably divided into three major categories. The first class is based on the X86 platform, which typically uses one or more primary CPUs to process business data, and the network card chip and CPU transmit data through the PCI bus. Since the traditional 32-bit PCI bus frequency is 33MHZ, the theoretical communication rate is: 132 MB bytes/s namely: 1056 mbits/s. Single from the

The ICF (Internet Connection Firewall) tool, which allows you to configure incoming rules for network packets, is not built into the system in Windows 2000, as early as in the expansion Toolkit for Windows 2000 systems. So the Windows system comes with a firewall that goes back to the XP system, and a component called Internet Connection Firewall built into the X

Now the network firewall has become the Internet users, but there are few people can let his network firewall really play his role? Many people do not set the function of the network firewall, the rules of the network firewall do not set-so that the role of the network firewall