Research on Computer Network Security Anti - attack

With the continuous development and improvement of computer technology in practical application, the computer network security requirements are gradually improved, and the understanding of information security connotation is continuously extended. It has expanded from the original information security integrity and reliability to the integrity and non-repudiation of information. Information security began to prevent, detect and evaluate security theory and technology. The network can't make it exposed to many dangerous effects, suffering from various types of adverse factors of attack, how to strengthen the prevention of computer networks more security and reliability has become an important issue we are discussing, based on the importance of computer network security The development of common network attack mode and mechanism, and the development of effective security prevention and control strategies, encryption strategy, to enhance the long-term security services of computer networks have a positive and effective role in promoting.