Implementation of Personal Firewalls for Handheld Devices

Abstract

The Internet has made large amounts of information available to the average computer user at home, in business and in education. For many people, having access to this information is no longer just an advantage, it is essential. Yet connecting a private network to the Internet can expose critical or confidential data to malicious attack from anywhere in the world. Firewalls can protect both individual computers and corporate networks from hostile intrusion from the Internet, but must be understood to be used correctly. A personal firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy. Personal firewalls are typically designed for end-users. Personal Firewall is able to control network traffic by prompting the user. Personal firewalls may also provide some levels of intrusion detection, allow the software to terminate or block connectivity where it suspects an intrusion is being attempted. This paper is proposed to implement personal firewall used in laptops, personal computers and Personal Digital Assistants (PDA) for personal use.