Computer Network Security Methods

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The paper presents a detailed overview of network security issues with critical examination of mechanisms and tools that have been developed to provide protection to networks. The paper brings out the network vulnerabilities, describing the types of probable attacks followed by the counter measures that can be adopted to safeguard against these attacks.


The boom in information technology has revolutionized communications world wide. The exponential growth of the most popular public network, Internet, has made inter-communication fast and effective. The amount of data flow through e-mails, e-commerce etc has gained new peaks and is still growing. Business transactions on corporate networks, corporate data access facilities for mobile employees, e-banking and many other data access and electronic facilities have become the order of the day. Almost any function of sale, purchase, transfer or sharing of data, conduct of on line university examinations etc can be achieved at a click of a button.
The picture is not as rosy as it might appear. Though, networks have made life easier in a number of ways, but there are many underlying threats that can negate all the merits offered by the networking infrastructure. These security threats may cause damages to businesses, loss or destruction of sensitive data or network disability. ...
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