Cmgt 441 - Network Security

Network Security

Akinwunmi Sunday Akinyemi

CMGT 441

August 10, 2012

Vijaya Jonnalagadda

Network security

Introduction

With the rate of increase in Information Technology, this also increases the rate of internet crimes, whereby hackers targeted crucial information stored in databases. Businesses, organizations, and companies confidential information in their databases may lead to losses if illegally accessed by an unauthorized person.

It is very important that organization ensures that their database is well maintained and adequately secured. Security measures implemented must aim at focusing on detection of attack, prevention of attacks, and immediate response to any insecurity incidents detected.

The safest computers in an organization are one which has been unplugged from the network, thereby rendering it almost and totally useless. Network security is a necessity, and the type of security measures require across different organizations depends on the nature of its business.

Kudler's Fine Food wants to implement a wireless network in three locations. First, I would have each laptop, desktop, or better yet, each node with an 802.11n wireless card. If laptops are used, I would use a 802.11n usb. I would also add a 802.11 wireless router allowing the network to run on much higher speeds of up to a theoretical 600mbps. The data exchange frequency would be 5.75 and you have up to 1200 feet in range for data exchange. However, the farther you are from the wireless router the weaker the signal will get. Depleting your data transfer rate. Since you are using a 802.11n card, you will be compatible with 802.11a, 802.11b, and 802.11g. For securing your wireless devices the only option I would go with would be WPA2. WPA2 uses advanced encryption standard (AES) as the encryption method. This technology is similar and more secure than TKIP, but requires special hardware for performing the encryption methods. WPA2 can use a pre-shared key and 802.1x or you have the option to use a dynamic key. You will also need antivirus installed on each computer to help disable hackers from penetrating the network. Kudler's Fine Food will have Kaspersky Anti-Virus installed on every machine, with a valid license. Additional software may be needed to aid in keeping attackers at bay such as vulnerability scanning software and firewalls.

There are three locations inside of Kudler Fine Foods. These locations are, Encinitas, La Jolla, and Del Mar store has a Point of Sales Server with four Point of Sale terminals. La Jolla and Del Mar stores each have their own NT Server and a workstation for inventory accountability.