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Enterprise Level Network Information Security

1.1 potential supervisor: Marry; Richard; Sinead O’Neil.

2 Introduction:

Development with the progress of science and technology, network is more and more perfect, the enterprise also along with the expanding network size, the architecture and the corresponding is becoming more and more complicated, However, enterprise network security also faces a bigger challenge, once the enterprises lose security, network security will be a direct threat to the stability and development of the enterprise, will cause significant losses. However, for different levels of enterprises should have different level of network security solution. Therefore, In this paper Enterprise network security problems and the cause of the problem analysis, and how to improve enterprise security, to the enterprise The development of the meaning for the following discussion.

2.1 Background:

The enterprise information security reflected in many aspects, Such as the physical firewall, software firewall and system loopholes, I was working for CNPC(China National Petroleum Corporation) as an network engineer before. In this company, Each department at least have 20 client, and there were totally about 300 client overall company. potential network risk comes from the external attack and internal system loopholes, and the user’s own network security awareness is also not high. Maintain and improve the network security performance of all hosts is a large amount of overhead.

2.2 Company need:

Different sizes of companies need different levels of network security, Small companies need low cost of network information security solutions, Large and medium-sized companies need high efficiency high security of network information security solutions, Simple and easy to maintain the physical network information security equipment, powerful functions, simple operation of the network information security software.

2.3 Personal motivation:

What is the security budget (cost expenditures), where each dollar spent on security must be weighed against alternative non-security expenditures, that is justified by the foregone (prevented) losses and damages? (Evan E. Andersona 12 March 2008), The company whether it is worth to spend money on the network information security? Network information security is the value of the company’s future, However, spending too much money on the network information security is not worth it, but the network security information and must be protected, Therefore, My purpose of this paper is to find a balance for the company and efficient solution.

3 Research question:

3.1 For the physical network information security equipment: Check the packet and session, for different application, address or the user types and set specific parameters to analyze and control packets enter or leave

3.2 For internal users with a variety of functions such as network address translation (NAT), to provide users with attacks on based on the network protection.

3.3 For the software network information security equipment: manage the email content filtering and control, and to prevent viruses and other malicious code in the E-mail.

3.4 User security awareness training

Reference:

(Evan E. Andersona 12 March 2008);

(Kritzinger & Smith 28 May 2008);

(Dlamini, Eloff & Eloff 26 November 2008);

(Knapp et al. 10 July 2009)

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