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The Importance Of Firewall For Internet Sercurity

2383 words - 10 pages

Literature Review
Oxford dictionary give meaning about firewall is a part of a computer system that prevents people from getting information without permission, but still allows them to receive information that is sent to them. The word of firewall also been used by Lightoler (1764) is to describe walls which separated the parts of a building, saving both lives and property. In late 1980s, network securities of firewall were been used to distinct networks from others. Firewall also can be defined like a system or group of systems have two networks over an access control policy.
Nowadays, internet security has been a major consideration when someone builds an organization. This is because, by using firewall. It can protect and shield the secret data and file s of an organization. The firewall is very important because it can reduce maximum risks of confidential information. It also can maintain the data and file. In the past, the organization does not really know the existence of the firewall. They also not concerned about the important of the firewall. This is because it is not influx with many users as nowadays.
Hardware and software are combined to get the firewall. The access control policies, enforces corporate security and others are the effective firewall that are been created on the markets. The firewall gives the benefits to any organization that use and has it in their systems. The benefits that they get are security and auditing. Firewall is being choosing by the organization because it has the high security that can save all the data and files. If the firewall is not being use by the organization, it can expose the system that created to the intruders like hackers and spies.
The demand of the firewall is very high for organization. This is because, in era of technologic, the organization worry the hacker will attack their system if they not make their system difficult to break in. The hacker also can be detecting by the organization if they have a strong firewall. The least privilege and defense in depth are the critical element to have a valuable organization strategy.

Distributed firewalls were proposed a few years ago in Bellovin on 1999 as a mechanism to reduce some of the limitations of conventional firewalls, especially those related with the dependency on topology that with traditional concepts like security perimeter or well-defined entry points to enforce the traffic filtering, the existence of end-to-end encrypted traffic passing through the firewall without inspection, and the need to increase the protection against insiders like devices and users being protected by the firewall from outside attacks. This is just a small summary of the list of reasons described in Ioannidis on 2000.
An analysis of the current situation indicates that all these reasons continue being of relevance nowadays and that some new threats can be added to this list. This is the case mobility, where some emerging technologies such as...

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