Network Security and Management
Brandi Schoch
CTU Online
Introduction to Network Management
IT245-1403A-09
Jennifer Gaddy
August 11, 2014
Table of Contents
Table of Contents 2
Identifying the Network 3
The Organization 3
Network Servers 3
Network Personnel 3
Diagramming the Network 5
Network Architecture 5
Speed and Distance 6
Access Method 6
Network Models 8
OSI Model 8
FCAPS Model 11
The Diagrams 13
Protocols and Agents 14
Protocols Used Presently 14
Security Concerns 15
Network Security 16
Viruses, Worms and Trojan Horses 16
Hacker Attacks 17
Identity Theft 17
Network Management 18
Managing Hardware and Applications 18
Managing Network and Security Issues 18
Utilizing Utilities and Applications 18
References 20
Introduction to Network Management
Identifying the Network
The Organization
This is a personal home network that also runs an internet business. There is one location and many hubs within that location to provide: internet access for family members, and business personal, as well as printer and fax services for the business, as this is an internet business reliable internet access is a must security is paramount.
Each family member has their own desktop computer, laptop computer, and tablet, 2 members have smart phones, there is also a PlayStation 3 console, Xbox 360 console, and a Wii console connected to the network.
Network Servers Each hub has its own user. This is not the case with consoles as they are used by everyone. The modem/router connects all the hubs to a wireless 4-in-one printer that provides all printing/fax services for each computer. This printer also has the capacity to scan and send document to each computer. So all hubs are providing and consuming. However only one computer is used for the business and there are times when another printer is hooked up to it briefly for special jobs.
Network Personnel
Each computer user is responsible for all their data. However all data is backed up by the network administrator (me) with portable hard drives which are then put in a safe location. This is important for family member’s personal data as well as business data. The administrator’s hub also has larger hard drive capability and acts as a temporary backup in case of portable drive failure.
The Jr Network Administrator (my son) handles the consoles data and system. All data from these consoles is saved within the hard drive of the console. This data is not as important as it only pertains to our entertainment.
Diagramming the Network
Network Architecture
This network starts with a modem. However this is too simplistic a definition for what this piece of hardware does. It is combination of modem, router, switch, and firewall. It handles both hardwired and wireless clients. For simplicity it will be referred to as the modem. The main business computer is hardwired into this modem. The other computers, laptops, tablets, smartphones and consoles all connect to this modem wirelessly. The main printer is also connected wirelessly.
Speed and Distance
Speed can be an issue with this network due to the limitations of internet availability in this area. DSL is the only cost effective option right now. Unfortunately, our phone lines are older and have not been replaced yet. So we cannot get high speed DSL in our area. This means instead of getting 7 Mbps we are only able to work at a 3.5 Mbps, as all clients are not used simultaneously there is not much issue with lagging. Bear in mind that this is just download speed; upload speed is much slower at 911 Kbps which is actually less than one megabit of data.
Distance is not really an issue as all clients, servers, and modems are within the same 1300 ft. building.
Access Method
As shown in the diagram above there is only one computer connected to the network physically. The printer and all other client/servers are connected via Wlan. The modem automatically picks up each device and has to be approved through the network administrator to
