Author(s)

Bo Xu

Corresponding Author

Bo Xu

Abstract

Computer network system is the basic environment to support all kinds of information transmission, interaction and sharing inside and outside enterprises. However, due to the interconnection, openness and loopholes and deficiencies of the network system itself. Starting with the definition of computer network security, this paper analyses the unstable factors of computer information network, and puts forward corresponding security countermeasures. The main problems of current network information security are analyzed from the aspects of network information security vulnerability, main technologies of network security, common network attack methods and countermeasures, and network security construction. Research shows that we evaluate site security from an attacker's perspective, including: information gathering, port scanning, privilege escalation, overflow testing, SQL injection, cross-site attacks, and web application testing. Research shows that combined with the development of information technology, the research on network information security technology prevention measures is improved, and the use risk of customers' network systems is actively reduced. Combining system operation with other security protection measures can more effectively prevent various types of virus intrusion.

Keywords

Network Security, Information Security, Threat