International Journal of Soft Computing and Engineering (IJSCE)
The explosion of the public Internet and e-commerce, private computers, and computer networks, if not adequately secured, are increasingly vulnerable to damaging attacks. Hackers, viruses, vindictive employees and even human error all represent clear and present dangers to networks. Loss of irreplaceable data is a very real threat for any business owner whose network connects to the outside world. Remote access for employees and connection to the Internet may improve communication in ways the user have hardly imagined. Access to the Internet can open the world to communicating with customers and vendors, and is an immense source of information. But these same opportunities open a Local Area Network (LAN) to the possibility of attack by thieves and vandals.