Advances in Enterprise Information Technology Security by Djamel Khadraoui, Francine Herrmann

By Djamel Khadraoui, Francine Herrmann

Advances in firm info expertise safety offers a wide operating wisdom of the entire significant protection concerns affecting todays firm IT actions. The chapters during this most suitable Reference resource are written through a few of the worlds prime researchers and practitioners within the filed of IT protection. There aren't any basic and entire solutions to the problems of safeguard; accordingly, a number of suggestions, ideas, and functions are completely tested. This reference paintings provides the instruments to deal with possibilities within the box, and is an all-in-one reference for IT managers, community directors, researchers, and scholars.

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Auditing must take into account the dynamic aspect of GRID environments where component binding varies considerably and can have a short life cycle. Confidentiality, Integrity, Availability (CIA) Communication between GRID entities must be secure. Confidentiality must be ensured for sensitive data from the communication stage to a potential storage stage. Problems of integrity must be detected in order to avoid treatment faults. Availability is directly bound to performance and cost in GRID environments, and is therefore an important requirement.

Similarly the MoIP server is placed in a DMZ so that exchanges with the branch offices’ MoIP servers are possible through the external area. The e-mail proxy is integrated in the anti-virus server and requires access from the external area for e-mail exchanges. All these servers are located in router’s DMZ, with the idea that each DMZ hosts machines that are accessed by the same category of persons or machines, and it protects them with a specific security policy. So, the router defines four DMZ including respectively: Internet Web and DNS, anti-virus with e-mail proxy function, Extranet Web, and MoIP.

12 Note that in this kind of architecture, only network-layer and protocol-layer attacks are blocked. There’s no way to block ActiveX or JavaCode attacks, or to filter visited Web sites, except if additional proxies are added. Even with proxies’ introduction, there’s no way to protect them in an efficient way within this type of architecture. A medium-LEVEL security architecture The second type of architecture equipped with one border router and one firewall, is more complex and may serve to define many DMZ to isolate servers.

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