SMSD is major School districts. It will be decided to launch the digital learning initiative. The digital learning initiative will be helpful for students and teachers. It allows the students and teachers to transform the information. The sixth grade students get the information through the iPad and the twelfth grade students get the information through the MacBook Air computers. The teachers get the information through both iPad and MacBook Air computers. The security problem will be appeared in the digital learning. It is very complex .To avoid the security problem, SMSD decided to provide firewall authentication in the digital learning. The process of firewall authentication will be done by the ELA (Enterprise License Agreement) with cisco.it will be provide solution for collaboration also. Three tools will be used to avoid the collaboration. The tools are Cisco collaboration meeting tool, Cisco WebEx and cisco spark. It reduced the security managing problem and complexity. VPN allows the end users to connect securely to the remote network via servers run by VPN providers. Since the data is fully encrypted the data cannot be hacked and misused by man in the middle. The privasy of the users can be hidden while using VPN. Censorships can be evaded. Many services may not be available to few countries. VPN allows them to access those services too. When using public Wifi hotspot , the devices can be protected from hackers. P2P downloads can be done very safely.
Security Objectives
Business Objectives
The network for Shawnee Mission School District (SMSD) is planned in such a manner that full security is provided to the network. It is a big network that remains as home to 27,500 students. It has 5 high schools, one alternative high school, five middle schools and 33 elementary schools. The district is planning to launch well maintained digital learning platforms. The district has planned to launch 30,000 new devices and that devices has to be linked in a secure network. Secure network in the sense it should be away from the hackers [1]. That is the network has to be designed in a manner that provides security to the network that help the students to execute the studying tasks painlessly. The district also planned to use CISCO’s licensed Identity Service Engine. The school Network’s sample diagram has been designed using Cisco packet tracer. The sample diagram has 3 routers, two switches and 2 PC clients. The number of routers, switches and clients can be extended. As this is a macro level project, it is able to provide only the minimum number of devices. The security is specified as a important feature in the network planning and hence more security layers are attached.
It controls the communication between authenticated user and unauthorized user. It provides the security for the user’s network. It is one type of network security. It provides the permission for accessing the network in the secured network [2]. The firewall is implemented as a hardware and software.one could built the firewall as both hardware and software.
Basic types of firewall
The gate way is used to connect two different protocols for connecting two networks. It is one of the network nodes. The router is gateway to connect the home network to the internet [3].
Switch is a high speed device.it is used to send and receive the data. It is Ethernet based one. It is more all as similar to router and hub.
Types of switch
LAN stands for Local Area network. It is one type of computer network.it covers only small region [4]. It works based on the Ethernet. One could build LAN for small region, like home, schools etc.
Webserver is used for delivering the web pages. By installing the server software and connecting the system to the internet, one could made any computer as a webserver. By retransmit the HTML files in the HTTP connection, one could create the website with the help of webserver [5]. Web server will be having one or multiple IP Addresses. It will be hosting many domains.
Types of webserver
Some features of webserver
Benefits of webserver
Router is one type of networking device. Router connects many different networks. The pockets reach the router. The router reads the source and destination IP addresses of the pocket and guides it to the next router. The traffic directing functions is performed at the internet by router. It transfers the data packets between the computer networks [6].
First layer-Firewall – This firewall is mainly used to provide the security [7]. To safeguard the network Firewall is set to protect it.
Second layer-VPN – To enable the license of security technology package in order to complete the activity.
Third layer-IPS- it can able to encapsulate the traffic in a single device.
Fourth layer-SSH- this is can also provide the security shell for the network.
CCP is nothing but the Cisco Configuration Protocol. CCP is a tool created to operate under the windows operating system. It is a tool designed for device management. Router can be efficiently configured using CCP [8].
Requirements
Basic Network Device configurations
Objectives:
Steps followed
Pinging test
Pinging of PC-1 on the R2 LAN from PC-0 on the R0 LAN is done. The ping result is successful.
Pinging of PC-1 on the R2 LAN from PC-0 on the R0 LAN is done. The ping result is successful.
Configuration of CCP Access for routers
Objectives
Procedure
CCP configuration
Objectives
Procedure
VPN stands Virtual Private Network. To provide the security and privacy for Public and private network, VPN is used. It acts like an internet and Wi-Fi hotspot. The data transformation between the computer network and remote user is securely done by the VPN. To saves the secure data, VPN is used in the corporate world [10].
Benefits of VPN
VPN Tunneling protocols
Tunneling is a protocol. It provides the security for transfer the data from the one system to another system. Port forwarding is another name for tunneling. The private network communications is provided to the public network by using the tunneling process [11].
It is the process of translating the data from one protocol to another protocol. That is transfer the data from source to the destination.
Objective
SSH stands for secure Shell. It is used for protecting the system from attacks. The attacks are DNS spoofing, IP source routing and IP spoofing. It is used for transferring the files from one machine to another. By using associated SSH file transfer, one could transfer the files. The secured copy protocols also used for transfer files. The secure authentications are provided at insecure channels by SSH. It is a network protocol. To remotely access and manage a device, SSH is used [13]. It is used for supporting some operations like forward the TCP ports, tunneling and X11 connections. It is used for data encryption.
The SSH protect system from following risks
Benefits of SSH
Trunk is one type of communication link. It is used to provide network access between two points with multiple signals. It connects the switching centers. The bandwidth of single cable is increased by Trunk. Because the trunk has multiple cables and wires. It is also used for sharing the frequency to the more number of users.TO connect the switching nodes, trunk is used [14]. The switching nodes may be PBX (private branch exchange) and central offices. Two types of trunk are there. Trunk Port, Port Trunking
IPS is nothing but the intrusion prevention system. IPS is used to detect security problems. IPS provides the layer of security next to the firewall [15].
Objective
Procedure
IPsec VPN is used. The clients are connected with VPN server using gateway. Security firewalls can be used for further security. The VPN system will be having connection with routers too. The client to server connection will be fully secured. Admin computers can have multiple special access levels into the VPN network. VPN will be having two IP Addresses. External and Internal.
CPT (cisco packet tracer) is a most widely used software for network simulation, which is mainly used for simulation of LAN setup. Cisco Packet Tracer is considered as a great network simulation program, with the help of this software the following design for a network of school is made. Generally, to set up a network, user need a router, Client PC, Server and switch. Here, the network configuration need 3 routers. It should contain the network interfaces [16].
Conclusion
SMSD is decided to launch the digital learning initiative. The security problem would be appeared in the digital learning. It is very complex. To avoid the security problem, SMSD would decide to provide firewall authentication in the digital learning. The process of firewall authentication would be done by the ELA (Enterprise License Agreement) with cisco. It would be providing solution for collaboration also. The security and business objectives are explained. The existing security solution may not meet all the requirements. VPN solution will give better security and will satisfy all the business and technical requirements. Unmanaged systems are totally insecure. Data theft and password thefts used to happen very easily in unsecured network. Browser cache will be having lot of sensitive data and that can be stolen without the end users permission. Browser histories, Browser cookies, saved form data’s, saved passwords also can act as a easy loops holes for data theft and identification theft. Man in the middle attacks is pssoble. When the user names and passwords travels in simple WAN, anyone can hack these details. Web application attacks like SQL injection, buffer overflow attacks, and directory traversal attacks and cross site scripting are very much possible in unsecured network. Viruses, Worms and Trojans are possible in unsecured network. VPN prevents all these problems. Strong user authentication policy, complex password policy, usage of strong encryption algorithms can save the end users from ID theft and data theft. Web application firewalls, IPS and gateway level anti-virus systems and network admission controls can act as the best prevention mechanisms.
Reference
[1]H. Mankell and E. Segerberg, Firewall. London: Vintage, 2012.
[2]D. Mills, Firewall. .
[3]V. Bollapragada, M. Khalid and S. Wainner, IPSec VPN design. Indianapolis: Cisco Press, 2005.
[4]”What Is A VPN? – WhatIsMyIP.com®”, Whatismyip.com, 2017. [Online]. Available: https://www.whatismyip.com/what-is-a-vpn/. [Accessed: 28- Sep- 2017].
[5]”What Is VPN Tunneling?”, Lifewire, 2017. [Online]. Available: https://www.lifewire.com/vpn-tunneling-explained-818174. [Accessed: 28- Sep- 2017].
[6]”What is Secure Shell (SSH)? Webopedia Definition”, Webopedia.com, 2017. [Online]. Available: https://www.webopedia.com/TERM/S/SSH.html. [Accessed: 28- Sep- 2017].
[7]”What is gateway? – Definition from WhatIs.com”, IoT Agenda, 2017. [Online]. Available: https://internetofthingsagenda.techtarget.com/definition/gateway. [Accessed: 28- Sep- 2017].
[8]W. Nelson, A. Srinivasan and M. Chintalapati, Sun web server. Upper Saddle River, N.J.: Prentice Hall, 2010.
[9]M. Feilner and N. Graf, Beginning OpenVPN 2.0.9. Birmingham, U.K.: Packt Pub., 2009.
[10]X. Yang and R. Shang, Luo yang qie lan ji. Beijing: Zhong hua shu ju, 2012.
[11]J. Eliot, Ssh. [Place of publication not identified]: Mosaique Press, 2014.
[12]D. Barrett, R. Silverman and R. Byrnes, SSH, the secure shell. Sebastopol, CA: O’Reilly Media, Inc., 2011.
[13]S. Carey, The trunk. Melbourne, Vic.: Puffin Books, 2013.
[14]H. Belloc, On. Freeport, N.Y.: Books for Libraries Press, 1967.
[15]O. Santos and J. Stuppi, CCNA security 210-260 official cert guide. .
[16]J. Guichard, I. Pepelnjak and J. Apcar, MPLS and VPN architectures. Indianapolis: Cisco Press, 2014.
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