Author: Hu conscription 1 Shirochin V.P.2
Ukraine state-run Scientific and technical university
Abstract Internet vigorous development today, the computer system already developed from the independent main engine to complex, the interconnection open style system, this has brought the very big convenience for the people in the information use and the resource sharing. Transmits and processes each kind of life information by Internet, already becomes one of people important communication ways, the following each kind of attack and the invasion technique were emerge one after another incessantly, have caused a series of security problem. This article introduced that nowadays the popular network security technology - invasion examination technology, this article first narrated the invasion examination's concept, the model and the classification, and have analyzed its examination method and the deficiency, finally said that described its trend of development and main IDS Corporation and the product.
Key word invasion examination invasion examination system network security _blank " > firewall
1 introduction
Along with individual, the enterprise and the government apparatus relies on day by day in Internet carries on the communication, the cooperation and the sale. To safe solution demand rapid rise. These safe solution should be able to prevent at the same time the intruder to be able to guarantee the customer and the partner safe visit. Although _blank " > the firewall and the formidable identification authentication can the protective system without authorization not visit invasion, but they are actually helpless to the specialized hacker or the evil intention after the authorized user. The enterprise in _blank " > on the firewall system invests the massive funds frequently, in the Internet entrance deployed that _blank " > the firewall system assures the security, relies on _blank " > the firewall establishment network organization often is " outside the tight in pine ", is unable attack which prevents the internal personnel to do, the control lacks the flexibility to the information flow, from outside looked that resembles is safe, but the interior lacks the essential security measure. Statistics indicated that global 80% above invasions from. As a result of the performance limit, _blank " > the firewall usually cannot provide the real-time invasion examination ability, makes the attack regarding the enterprise interior personnel, _blank " > the firewall exists in name only.
The invasion examination is to _blank " > the firewall and the beneficial supplement, the invasion examination system can cause, in the invasion attacks before the phylogeny harm, examines the invasion attack, and using warning and shielding systems pursuit invasion attack. In the invasion attack process, can reduce the loss which the invasion attack creates. After being invaded the attack, the collection invasion attack's related information, takes the guard system's knowledge, increases into the knowledge library, enhancement system's guard ability, avoids the system receiving the invasion once more. The invasion examination was considered that after is _blank " > firewall's second security strobe, in does not affect the network performance in the situation to be able to carry on the monitor to the network, thus provides to the internal attack, the exterior attack and misoperation's real-time protection, enhanced network secure [1] greatly.
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