Network Design for the 2012 London Olympics Essay Example for Free

Network Design for the 2012 London Olympics EssayThis report is a stair by step analysis of the wants planning and implementation of a electronic entanglement based on the infrastructure of an office environment. throughout this report, the reader will see how the requirements planning is broken d feature into detailed sections to illustrate how each requirement has been identified for the stages of planning to implementation. In the scratch activate of the report, we will be identifying what hardw ar is required for the dental plate of the profit, taking into consideration a room for future expansion and stratagems to be added at a posterior date. The second part of the report will be the identification of softw ar that will be postulate to run every(prenominal) work on the network including set-up and configuration of the softw be. Network cookery Why is a network required? Before actually planning the set-up of a network, the use of a network has to be justified . on that point are many uses to a network, some of the basic uses are Sensitive information mass meeting information is shared only between departments and/or specific users and not to other people, e. g. customer report information that contains bank information and/or other personal information. Internal digital mail requests and confabulation between departments in a business may be increased and pass ons stool be salvage for later use. Resource sharing information updated constantly is shared from one location and is referenced by other departments and/or users within the same network, e. g. a infobase of customer details and orders for a company. File supporting Services information is backed up or stored in a secure location in the in timet of future problems and to significanttain records of information.There are other uses of networks as well but chiefly they are apply as a heart and soul of protective covering. Within a company, when a network is u se correctly, the flow of information across a network can be monitored and tracked back to the user. This is natural to en sure as shooting no information use within the company is ingressed from an outside source or is employ in an unlawful manner by a company employee. Scope of the network Since the network is creation made for the London 2012 Olympics, we can assume that the network will be of large scale (roughly 500-2,000 users).This means that each service, much(prenominal) as email and DHCP function, will require its cause dedicated hardware in order for the resources to be adequately shared without any network latency or slow access experience. If the network is used on a much smaller scale, then the services could run from utilise only a few pieces of dedicated hardware such as the domain and email services sharing hardware. A site survey should always be performed before installation a network to ensure that wireless signals can be transmitted throughout the buil ding or buildings and to see how the network can be modelled based on the environment it is going to be installed in.Identifying Network Hardware In this section, we will identify different hardware and its uses on a network, how a network is connected and what devices are used to connect a network throughout a company building. innkeepers and Services There are many different types of services that can be hosted from a server on a network. many an(prenominal) of these services usually have their own dedicated hardware but depending on the scale of the network, the services can easily be bunched together on the same hardware to cut down on overall equipment usage. Domain hordeThe domain server is used to authenticate users and computers included on the network. It is considered the main access rig to a network because it stores all user account information used in authentication. Email Server The email server is used to direct messages to the correct recipient once the message h as been processed by the server. Many companies today use a surreptitious internal mail frame as a way of faster communication within departments. File Server A file server is used to bear users access to information and data across the network.This helps reduce file gemination across different computers on the network. Permissions can be set for file access so that important documentation can be read but not written to or deleted. DNS Server A DNS server is a kind of server that translates DNS names into an I. P address that is used for communication on the profit. DHCP Server A DHCP server is used by hosts to retrieve I. P addresses and other information. Firewall Server A firewall server is used for monitoring the network for vulnerabilities and intrusions and detecting viruses in the event of an attack from the internet.Application Server An application server is used to host applications and fare them a part of the networks resources. The servers are commonly used to save on costs for multiple software licenses compared to a site license. Database Server A database server is used to host a database for access by users. These servers can be updated and viewed. These are commonly used in finance departments or companies that host customer records that needs to be accessed and amend constantly. Network DevicesThis section will punter explain the other devices that make up a network such as the network equipment itself and other devices which can be considered essential to a networked environment. Modem A modem is used to connect an outside line (usually from an internet service provider) via telephone communication to the network enabling internet access or access to another sites resources. Router A router is a device that onward data packets between devices on a network and can manage which network node receives trustworthy data rather than sending the same data to each node.Routers can also have their own firewalls. Switch A thumb is used to conn ect segments of a network together. Switches are an important part of a network as they are used to connect multiple devices at once. These switches come in all shapes and sizes, ranging from a simple 2 port switch to a 48 port switch which fits into a server rack. wireless doorway Point The wireless access point is a device that adds wireless connectivity to your network. This type of network device is often used to connect portable devices such as laptops, PDA and Smartphones to the network.It is also used for wireless printers and installing hardware devices to computers where network cabling is not applicable. Network newswriter Network printers are printers made available on the network as a resource so that many users can print from one location. This cuts down multiple hardware usage per computer which saves hardware costs and maintenance. Aside from users, all of these services and devices are what make up a network. Connecting your Network Cabling and Access Points Now t hat we have outlined what services and devices make up a network, there is the matter of how a network will be connected.There are a few methods of connecting a network, each with its own pros and cons. The standard method of connecting a network is via cable. stock Connection Cable connection for a network is one of the most trusted methods of connecting users to resources. The reason for this being that wired connections were the first standard and constant communication to be used with computers. Wireless connection is still a plumb new method of communication and is therefore still changing. Types of Network Cables There are quite a few types of network cables that are used today in business, each suited for different purposes. distorted Pair is a type of copper cabling that is used for telecommunications and most Ethernet networks. There are two types of twist pair cabling. Unshielded twisted pair (UTP) UTP cables have a range of 100 meters and rely simply on the cancella tion effect produced by the twisted-wire pairs that limits signal degradation. Shielded twisted pair (STP) STP cables reduce galvanic noise from within the cable since each pair of wires is wrapped in metallic foil to better shield the wires from noise.Four pairs of wires are then wrapped in a metallic braid or foil. Coaxial cable is a copper-cored cable that is surrounded by heavy shielding. There are several(prenominal) types of coaxial cable. Thicknet or 10BASE5 used in networks and operated at 10mbps, maximum length of 500 meters. Thinnet or 10BASE2 used in networks and operated at 10mbps, maximum length of 185 meters. RG-59 Most commonly used with cable television. RG-6 Higher select than RG-59, with more bandwidth and less susceptibility to interference.A fibre optic cable is either a frosting or a plastic fibre that carries light along its length. Fibre optic cable can reach distances of several miles before the signal needs to be regenerated. Fibre optic is more expensive than copper cable and connectors are more expensive and harder to assemble than other connections. Wireless Connection Wireless technology is also a greatly utilised technology in business today even though the reliability of wireless connection does not compare to that of a cable connection. Security There are a few different ways to apply aegis in a network. virtually security protocols may be placed during network design and some protocols when the network is running. Network security during the design During the designing of the network, avoid giving anyone outside the implementation team or network occasion any information, such as work plans about the network design or the materials that will be used for the network, which will help Vandals infiltrate or use the network inappropriately. Basic security that should be present in a network 1. Firewall will offer a tougher barrier between the private network and the Internet.Firewalls will prevent unwanted users or h ackers from accessing the network. 2. Proxy can be used to provide users a way to connect to the proxy server by requesting authentication from the security service during the alternate of files in the network. 3. Antivirus is used to prevent viruses from penetrating the network and the computers connected to it. It also eliminates the counter-espionage potential within a network. Since there are many antivirus softwares available, the network has the freedom to choose the appropriate antivirus for the network.4. Strong password encourages all network an web users to use a password that contains letters, numbers and symbols so as to increase the trouble of breaking or cracking the password and steal any information from the network. 5. Packaging cables used to make sure no unauthorized person have access to data and change it. Disaster Planning and Recovery Before setting a network, the manager of the project requires designers and developers of the network to take into accoun t unexpected circumstances, such as natural incidents and hardware failure, to reduce their impact.Earthquakes, floods, fires and such disasters may be given a solution using the following points The proximity of cables to main electrical wirings must be significantly opposed to avoid fire. As much as possible, servers must be placed outside the building. Extra security protocols must be applied to avoid losing information. If a building has multiple servers, it is advised that all servers be placed on an isolated location and away from public gathering places. This will require the cultivation of additional security precautions. Different types of cables should be considered in setting up a network to maximise its us Do not put cables near bodies of water system or water discharge sa this may damage the cables Provide rooms with electric generators in case a power outage occurs. Make sure that these rooms are close to their central control devices to avoid technical probl ems in connecting the machines to the generator. Provide fire-preventing equipment such as fire extinguishers near the whereabouts of control systems Provide water and fire alarms to inform personnel if water or fire gets near the data storage devices The network team should provide a innocent or backup server to perform full back up planning after disasterWith the increase in number of intrusions and attacks on networks trying to take data and information, a way of defend these data should be prioritized in a network. Since the data are, most of the time, secret and important to companies, detection and control of intrusions must be strictly implemented. Through the latest presentations that we have done in class, we have wise to(p) new techniques and OSI Models that should be taken into account to provide the highest standards of security and quality. Some of these techniques are firewalls, proxies, encryptions, IP security, data authenticity, communications type and satelli tes.