Operating system and network equipment is found defective and was constantly used by hackers to carry out malicious attacks. If we clearly recognize this point, we should use the following two steps to try to prevent network attacks to protect our network: to identify, trace or stop these nasty machines or networks of our visit. Lets focus on the second point of the main problems we face is how to identify those that host malicious attacks, especially denial of service attack using the machine. Because these machines hide their own address, and fraudulent use of the attackers address. An attacker using a forged thousands of malicious packets to the host under attack us. "Tfn2k" principle as simple as just mentioned, and he only has to provide an image of the interface. If you suffered a distributed denial of service attacks, it is difficult to handle. There are some simple techniques to prevent denial of service attacks. The most commonly used of course, is always concerned about the security information the best way to look there. Administrators should report security information subscription, real-time concerns the development of all the security issues. :) The second step is the application packet filtering technology, mainly opening up port filtering. The main means of attack is to prevent fake addresses, so an external machine can not fake the address of the internal machines to attack the internal machines.
Colorful graphics famous brand, aimed 8400GS performance characteristics of high-definition, promptly launched a 0db silent graphics card Yi Cai 8400GS-GD2 frozen knight, it will be one perfect high definition and quiet we take a look below it. Colorful 8400GS-GD2 frozen Yi Cai Yi Cai Knight Colorful 8400GS-GD2 using 80nm process frozen knight GeForce 8400GS graphics core, the core number is G86-213, has 16 Streaming Processor, graphics card supports DirectX 10, Shader Model 4.0 to support the H.264 video decoding hardware acceleration, support HDMI + HDCP, very suitable for vista operating system in the high-definition digital TV and HDVD enjoy HD movies. Positioning as a low-end graphics card, to control costs in order to improve the overall cost is the key, so Colorful 8400GS-GD2 Yi Cai frozen knight uses advanced low-profile concepts. Although as an entry-level graphics cards targeting the low end, but no ambiguity in the selected materials, using a memory card separate core power supply design and use of environmentally friendly high quality aluminum electrolytic capacitors, and fully enclosed inductors. Colorful 8400GS-GD2 frozen Yi Cai Knight as a high definition DX10 graphics card, in order to meet the next big screen trend and the popularity of widescreen vista operating system, the requirements of large-capacity memory, using Qimonda 2.5ns GDDR2 256M/64bit memory, the default frequency is 450MHz/800MHz.