Advantages And Disadvantages Of Remote Working System Computer Science Essay

Advantages And Disadvantages Of Remote Working System Computer Science EssayIntroductionThe future(a) report waive for be based on providing potential requirements of the basic scenario and a through explanation of advantages and disadvantages of updating the current engagement of the EERP Company. By analysing the differentiate requirements it is clearly explained that the EERP is having two major employee classes as senior round and junior staff.Junior staff works in the office which mean that they worked on improve places. This volition result them to have personal reckoners with LAN (Local Area Network) attachivity. Depending on the budget this can vary up to a tuner mesh topology by implementing tuner interfacing postings to their personal computers and having receiving set local area network zones on the working area.Senior staff on the early(a) hand, they work in their homes. From their they should be able to do various kind of functionalities E.g. deliver com panys message via ProwerPoint presentations, compile, print documents, perform quires on existing customer records, send and receive email and complete sales orders. These functionalities should be done online or through the WIFI network at the company. It is clarified that the management has decided to equip the senior staff with a mixture of wireless enabled portable notebook PCs, printers and Personal Digital Assistants (PDAs) to get the maximum benefits out of their senior staff.To achieve these desired functionalities it is a must to implement a practical(prenominal) Private Network (VPN) between the senior staff and the Office network of the office. This will result them to connect their office even though they are remotely connected. They will be able to perform same kind of functionality which they perform in their office environment. When they work in the office they can connect to the WIFI network without connecting to the VPN. This network architecture will provide the s enior member to be connected on their office network every time whenever they want.When it comes to wireless connectivity or VPN, security is a must. It is important to implement necessary security methods and protocols to connect any of the networks. With respect to the following requirements no of WIFI and VPN users should me defined and should be expandable with the growth of the company. Depending on the budget, suitable VPN provider should be selected.With the basic under provideing of the key requirements it will be possible to prepare a network system with remote networking functionality.Advantages and Disadvantages of having remote working systemPros,It will be easier to implement and maintain.High reliability and availability.Network cabling will be reduced.Employees can stand on their work place dynamically without staying on one locationCan easily configure the security of the network.Can easily divide departments as blocks of network access points.Expansion of the networ k will be easier than a Traditional fit LAN.Cons,Network connectivity will be lower than a wired LAN.VPN implementation will be expensive.Company should be facing a higher security threat when implementing a VPN.In order to enhance the security, firewalls and different(a) third party tools have to be purchased.Employees should be well trained to use VPNs and wireless networks to avoid any sort of interruptions.Failure of a VPN will result some employees to not to cooperate with the company until it is fixed.Benefits to the companyThis system will allow employees to work interactively without any disruption. Employees who work on the office will have the WIFI connectivity. This means that they can work on their office desk as well as when they are not. They might be interacting with the customers even so they can connect with the network. They can share information, print documents and can query the information database. This will result interactive and efficacious communication with their customers.Senior staff on the other hand can work in home as they are in the office. Because of the VPN they will gain almost all of the network capabilities as they are in the office. Email services, document sharing, print documents and even online presentation facilities can be provided. When they visit the office they can connect to the wireless network using their wireless enabled notebooks and PDAs. As a result they can have almost the same functionalities.Estimate of the costNETWORK CABLE muckle CABLE 1000M UNSHIELDED TWISTED PAIR (UTP) = 315RJ45 Connector Network Cable CAT5 Crimp Ends Plug x 100 = 4.98D-Link DES-1024D 24-Port 10/100Mbps Network Switch = 61.00D-Link DSL-2640R radio G ADSL2 Wireless router DSL 802.11b/g = 56.00NETGEAR ProSafe Quad WAN Gigabit SSL VPN Firewall SRX5308 Router = 254.00RJ45 Network Crimp Tool = 20.00Mercury Multi Network Tester = 7.00Test UM WP150 Wi Net window Wireless Analyzer = 150.00Task 2.Set up a network with 2 wire less nodes and 1 wired node.192.168.248.57 -Default GatewayCUserssonyDesktopNWinternet.jpgCUserssonyDesktopNWwifi signalCUserssonyDesktopNWLinksys-router-wireless.jpgCUserssonyDesktopNWlaptop.jpg192.168.248.61CUserssonyDesktopNWpc.jpgCUserssonyDesktopNWwifi signalCUserssonyDesktopNWlaptop.jpg192.168.248.62192.168.248.63Wireless RouterA router is a device that forwards data packets along networks. A router is connected to at least two networks, usually two LANs or WANs or a LAN and its ISPs network. Routers are located at admissions, the places where two or more networks connect, and are the critical device that keeps data flowing between networks and keeps the networks connected to the Internet.When data is sent between locations on one network or from one network to a second network the data is always seen and directed to the put location by the router. The router accomplishes this by using headers and forwarding tables to determine the best path for forwarding the data packets, and they also use protocols such as ICMP to clear with each other and configure the best route between any two hosts.Network Interfacing CardA network interface card, more commonly referred to as a NIC, is a device that allows computers to be joined together in a LAN, or local area network. Networked computers communicate with each other using a given protocol or agreed-upon language for transmitting data packets between the different machines, known as nodes. The network interface card acts as the liaison for the machine to both send and receive data on the LAN.The most common language or protocol for LANs is Ethernet, sometimes referred to as IEEE 802.3. A lesser-used protocol is Token Ring. When building a LAN, a network interface card must be installed in each computer on the network and all NICs in the network must be of the same architecture. For example, all must either be Ethernet cards, Token Ring cards, or an skip technology.WIFI CardsA wireless network adapter allows a computing device to join a wireless LAN. Wireless network adapters run a built-in radio transmitter and receiver. Each adapter supports one or more of the 802.11a, 802.11b, or 802.11g Wi-Fi standards.Wireless network adapters also exist in several different form factors. Traditional PCIwireless adapters are add-in cards designed for installation inside a desktop computer having a PCI bus. USB wireless adapters connect to the external USB port of a computer. Finally, so-called PC Card or PCMCIA wireless adapters insert into a narrow open bay on a notebook computer.One example of a PC Card wireless adapter, the Linksys WPC54G (compare prices) is shown above. Each lawsuit of wireless network adapter is small, generally less than 6 inches (0.15 m) long. Each provides equivalent wireless capability according to the Wi-Fi standard it supports.Some notebook computers are now manufactured with bulit-in wireless networking. Small chips inside the computer provide the equivalent functions of a network adapter. These computers obviously do not require separate installation of a separate wireless network adapter. vista up wireless ConnectivityI have used TP_LINK as the router. To connect to the router I have used on of the LAN ports.At the browser type http//192.168.1.1/ to view the login page.Default username and password admin and admin are used to log in.If successful administration page of the router will be loaded.Navigate to the Wireless - Wireless Settings. flip-flop the security Type to WPA-PSK/WPA2 -PSKChange the PSK PassPhrase (Password) pillarboxx ease and reboot.CUserssonyDesktopNWTP_Link_Login.jpgCUserssonyDesktopNWWap.jpgSetting up Default Gateway and DHCP ServerPlease use previously mentioned step to login to the router.Navigate to the Advanced Settings - DHCP - DHCP Settings.Enable the DHCP serverChange the start IP address to 192.168.248.60Change the End IP address to 192.168.248.90Change the default gateway address to 192.168.248.57Save and reboo t.CUserssonyDesktopNWDHCP configuration.jpgChange the SSID of the Wireless access pointPlease use previously mentioned steps to login to the router.Navigate to the Wireless - Wireless Settings.Change SSID PTLSJCSave and reboot.CUserssonyDesktopNWSSID.jpg1. View Available Wireless screenCUserssonyDesktopNWNEW SSID.jpg2. List of connected nodes from the routerPlease use previously mentioned steps to login to the router.Navigate to the Advanced Settings - IP and mackintosh Binding - ARP ListCUserssonyDesktopNWconnected nodes.jpgThis will show all the connected devices together with their IP and MAC Addresses.Two of the devices are connected via wireless 192.168.248.61, 192.168.248.63. and the other device is connected via LAN connection 192.168.248.62.NOTE All the above mentioned configurations are explained in detail at each step.Copy a show from a overlap folder from machine 1 to machine 2 via wireless networkGo to My Computer.Select the Network from the Left menu.This will allow you to view all the available devices.Select the device which the file wants to be copied. (Figure 2)It will appear all the available shared devices and folders of that device. (Figure 2)Navigate to a shared folder.Figure 1Paste the file which wants to be copied.CUserssonyDesktopNWfile Sharing 2.jpgCUserssonyDesktopNWfile Sharing.pngFigure 2Figure 3CUserssonyDesktopNWfile Sharing 3.jpgTask 3.Link Systems D-Link Xtreme N Gigabit Router DIR-655 Wireless router terms 60.00Features gambling and phone calling (VoIP) experience.Ideal for streaming HD video or streaming multiple applications simultaneously.Dual active firewall protection (SPI NAT) helps block malicious attacks on networks from the Internet.Includes the latest wireless security (WEP, WPA WPA2) features that help prevent unauthorized access.Virtually no wireless dead spots.Advanced Parental Controls.Supports Windows Connect Now (WCN) for easy wireless setup.Automatic Firmware Update Notification.E-mail Notification for T riggered Events.Integrated Wireless Security Wizard.Removable Antennas for Flexible Installation Options.Wall Mountable to Save Desk Space.Linksys E1000 Wireless-N Router Wireless routerPrice 49.00Features128-bit encryption, NAT support, State full Packet Inspection (SPI), MAC address filtering, VPN pass through, firmware upgradable, wall mountable, Wi-Fi ProtectedLinksys E1000 Wireless-N Router is best for basic wireless Internet routine and home office productivity.Speed up your wireless network with a router that connects your computer, game consoles and other Wi-Fi devices at high transfer speed.Cisco Connect software product has three simple steps to get you set up and your secure wireless network is ready to go.A streamlined user interface allows you to film from simple to advanced settings with no hassle.Keep Wi-Fi freeloaders and Internet threats at bay with WPA/WPA2 security settings.ETGEAR Wireless-N Router WNR2000 Wireless routerPrice 33.00FeaturesFirewall protection, NAT support, State full Packet Inspection (SPI), do attack prevention, Intrusion Detection System (IDS),Simple and secure way to share your high-speed Internet connection stab N Connect hard connects at the touch of a button Wireless-N technology delivers exceptional range and speed Easy setup with Smart Wizard Installation CD Push N Connect using Wi-Fi Protected Setup (WPS) allows you to add computers to the network quickly and securely .Automatically checks and upgrades to latest software for optimal performance subjective antennas deliver maximum performance and range Convenient on / off switch helps save energy when not in use Energy Star-compliant efficient power supply Packaging manufactured with at least 80% recycled materials