Firewalls And Intrusion Detection Technology Is Applied Research In The Campus Network

With the rapid developments in network technology and computer technology, the in-depth relevant applications have brought about the increasingly complicated issues of security, which are growing more outstanding. The problems of security are given more and more attention by all kinds of organizations, society teams and the masses. With the development of the information security technologies, all kinds of solutions appear, such as firewall, defence hacker, encryption and scanning to unsafe factors in a whole system, detection, alarm, prevention. We can take these technologies into two parts on the whole, one is static security technology, and the other is dynamic security technology.Firewall on behalf of static security, which disadvantage is that it needs people implement,maintenance and can not follow the intrusion. However, IDS on behalf of dynamic security, which can detect the easy attack point and security hole initiatively. Furthermore, IDS can detect the dangerous action before manual detection. IDS can find the characters of dangerous intrusion and detect the attack action and then alarm, take protected measures at the same time. Because the traditional technologies such as encryption and firewall cannot satisfy the security needs. Now intrusion detection technology, as a new security method, has been gained more and more attention.This paper brings a thought that IDS and firewall can work together in the university network. IDS will be a good complement to firewall. Firewall can find intrusion by using intrusion detection, and IDS can block the attack from the external network by using firewall. In the end, according to the construction experiences by integrating the firewall and IDS technologies in a certain university network, this paper puts forward the defence solutions in security systems of university network.