Configuration And Implementation Of Campus Network Firewall Based On PHP

With the fast development of Internet technology, campus network has become animportant`platform for colleges and universities to share and exchange information inside andoutside the school, to give publicity and so on. Network brings vitality for school informationconstruction. Meanwhile, it puts forward severe challenge for traditional safety system.Especially, campus normalization is in a constant speed, network stores a large amount ofinformation, such as university’s education, research, management, service etc. Once networksecurity system problems happen, school must suffer irretrievable loss, like losing, disordering,being tampered, adding and deleting, destroying or stealing the school information. If thecampus network safety system isn’t guaranteed, it must be a obstacle to informationconstruction. The firewall will play a good role in protection the campus network, it makes theintruder to contact the target computer, must first pass through the safety line of firewall.Therefore, the safety of a high performance firewall of campus network plays a crucial role in.The paper sets to explore an intelligent security model of firewall for HuaLian Universityso that security defense framework can be improved. By this, our campus network will be in amultidimensional security mode. These technologies embody many features like state detection,flow control system and defense intelligence etc.With the help of FreeBSD and IPFilter, thiskind of firewall has packet-filtering technologies.The general manager is hard to understand theIPFilter firewall in FreeBSD kernel configuration due to writing rules; this may cause that theadministrator cannot have a correct configuration. The firewall is the use of PHP language toconstruct a webpage interface, to achieve the IP Filter configuration. It will be the first line ofdefense for campus network security system. But the firewall is just the fist step for security,and it has its own shortcomings. One is that it cannot be defended against internal networkattacks and the unsafe factors from high level protocol. So this firewall will be further optimized. At the same time, there are some other factors, for example network equipments and usersecurity awareness, being considered while perfecting the security model.By passing the test run, this firewall system more suitable for the application of campusnetwork security system of HuaLian University. Compared with the kernel firewall, it has moreintuitive interface, easier operation, and complete functions. It is a better defense function of thecampus network security.