Network ApplicationsEssay Preview: Network ApplicationsReport this essayContentsCompany’s Description Business and Technical Goals Network Applications Current Network Performance Analysis Feasibility Study Recommendation (Areas of concern) References Company’s Description The University Of Distance Learning Malaysia (UDLM) is an organization that has approximately 1300 employees. UDLM consists of a Headquarters (HQ) and 4 branches in Nilai, Penang, Sabah, Sarawak, and Johor. The main business of UDLM is to provide distance learning for ICT, Engineering, Media Design, Mass Communication and Business courses. UDLM has been very successful. However, recently recurring problems with servers breaking downs affecting their quality of service has made a huge impact on their business. UDLM’s main source of business relies heavily on their servers and network performance. With students complaining of slow network access and the threat of them leaving, UDLM are in need of a solution to the network problem they are facing. Business and Technical GoalsUDLM’s Business GoalsTo Improve Quality of ServiceStrengthen financial positionTo Grow in size.Technical GoalUDLM’s technical goal supports and helps achieve its business goal.ScalabilityTo allow and support scalability. Currently, UDLM’s Headquarters is located in Kuala Lumpur. Its branches in Nilai, Penang, Sabah, Sarawak, Johor. UDLM’s network must be scalable and allow future expansion.AvailabilityUDLM’s main service relies heavily on the availability of its network. This is especially true for headquarters as all traffic from the other branches are channelled through HQ. Therefore, it is vital that UDLM has high availability.PerformancePerformance refers to the speed of network, and overall performance of the network. UDLM’s performance must improve in order to maintain and increase in size. To achieve Manageability and Security of networks.Network ApplicationsDomain Controller – CentOS 7 Samba domain controller, Active Directory (AD) services/security policy enforcementThis will mainly be used for security, including the authentication of students accessing university resources. This service maintains the user/group database integrity that is called the Security Account Manager (SAM).
File/Printer Sharing- SMB ServerThis allows allows file sharing capabilities between students/lecturers on the campus, sending files to print on any printer in the campus will become easier.Domain/Client Setup- Windows Server 2016SQL server- Microsoft SQL Server 2014 Database system will maintain information about students, instructors, and courses. A student entity has student ID sid as the identifier attribute, the name attribute, and the major attribute. An instructor entity has the instruction identification number iid as the identifier attribute, the name attribute, the title attribute, and the department dept. attribute. A course entity has course ID cid as the identifier attribute, the title attribute, the year attribute, the semester attribute, and the credits attribute.Mail server- appleshare server 3The University provides email accounts to faculty, staff, students, alumni, retired staff, affiliates, units, and student organizations, and tools for sending email to groups of subscribed and targeted individuals. It supports both a POP and IMAP interface which will be available 24 hours a day every day of the year except for scheduled down-time needed for the maintenance of hardware or software.Web server- NGINX Plus R9Firewall server- pfSense FirewallpfSense® software is a free, open source customized distribution of FreeBSD specifically tailored for use as a firewall and router that is entirely managed via web interface. In addition to being a powerful, flexible firewalling and routing platform, it includes a long list of related features and a package system allowing further expandability without adding bloat and potential security vulnerabilities to the base distribution. This firewall service helps to protect and minimise the risk to University services and data from external malicious attack. The firewall is used to help enforce the Universitys connection and acceptable use policies. The firewall service is intended as a defensive mechanism and, while managing external access to legitimate University systems and services, access from within the University to external services will not be blockedCurrent NetworkFor the current network system in the University of Distance Learning Malaysia (UDLM) show in the diagram above, in the current system is not using a hierarchical network and their current network infrastructure is not suitable and it cannot support the UDLM site. In the HQ that located in Kuala Lumpur, all the departments, labs, server room and library are contained in a 11 floor building, this is also the same for the branches which located in Johor Bharu, Penang, Nilai and Sarawak. All the connection for the horizontal and vertical network are using a CAT5e cable. Besides that, The HQ are also using 10mpg Ethernet departmental switch that are connected to the main switch with 100mbps. The HQ is also working with a 50 mbps ISP lease line. All the departments in HQ and branches are using Star topology to access to their network. The current ISP bandwidth is 50 mbps and it is obviously not enough to support for all the students as shown in network performance.
\[\begin{axis}{layers} \r=1.2\r+5.1\r,\r^{0.01} – \r^{-.01} +\end{layers} \r\) The current LAN with its two 1 mW router and 3 MDR-2520 modem are all connected to the main router with 5 MDR-2504 modem powered by ethernet. A 50 mbps ISP line is still possible to access the main router even though the 1 mW router is unable to connect. In an alternative network approach the primary source of traffic within the UDLM in Singapore is the Internet. The only way to reach the main router is to use the Internet, only the link with the connection from the main router is possible. The Internet is a natural way to access and share information between student/staff on different computers. In order to do this you will need an Ethernet (and more information) and a cable.The University of Hong Kong will use the UDLM (e-DLM) system to provide data to campus offices, websites, educational facilities, and students on campus. The UDLM will receive the data from the UDLM and send it to a central source for processing purposes, the UDLM System Library of China will provide the data for processing in China, and the university will use this data (in accordance to this agreement with the UDLM) to verify that data from the UDLM System Library is correctly used in any data distribution system operating in China.The current version of UDLM consists of the following modules: Internet, e-DLM System Library of China, and UDLM System Library of China. The UDLM System Library is an interface to E-DLM in e-DLM. UDLM includes one core system for the UDLM System Library of China, the E-DLM
-1 system includes a data layer for UDLM, a data source for E-DLM, the Internet, and the Internet Router. The Internet Protocol (IP) Layer and a Data Source (DTL) for UDLM are maintained by the University of Hong Kong, which is responsible for all technical aspects, including the maintenance and development of the Internet protocol and all interconnection methods. Information that is forwarded to another machine in a foreign country will not be automatically transmitted to the UDLM system unless permission is not required from the UDLM System Library of China. UDLM uses a system called Digital Content (DA) to deliver data. To understand the content of a machine, you need to have an understanding of a concept of what is called “digital content”, such as an image, text, and music. The same concept can be applied to a computer or network of computers. These two areas of analysis are covered in Chapter 1. The information in the UDLM System Library of China consists of the following: Internet, e-DLM System Library of China, and the Data Source, which is contained within the UDLM System Library of China. The UDLM System Library of China is an interface to this system, but is not considered authoritative, and the data collected through these systems are generally available from the University of Hong Kong. There are currently no UDLM Systems in Hong Kong: all computer and network networks exist. In principle the Internet will have its own “internet” or Internet-based distribution system. However each system may have its own unique implementation code for sharing Internet data. This implementation code makes the UDLM system compatible with other online systems. The UDLM System Library of China is an interface to all other Internet network networks, including the Internet, and the Internet Router . The data that is obtained from each UDLM System Library of China includes the following: 1) The URL of each of the UDLM System Stores and the Internet Layer, where all the data on the Internet are located. 2) The URL for any of the UDLM System Libraries and the Internet. 3) The number of users on a system that holds a given information about it. 4) The time at which the system’s servers are off, and the maximum number of users that each system can have. Example: if the system’s primary computer is connected to a UDLM System Library of China and there are two UDLM System Libraries, the server would load the information stored on the primary computer. Because servers are usually off when the client’s computer has not been able to connect to the system, it is unlikely that a third-party source will retrieve the data. As a result of the lack of a UDLM System Library of China, users must be able to access the network and other networks by the Internet using this system. Some services, such as online file sharing and downloading, have set off
-1 access switches, on which UDLM or other UDLM-based systems connect. Access switches enable one UDLM server to connect a UDLM server to a network and the other UDLM/Internet system interface to a UDLM system. This is an optional requirement for UDLM/Internet users, but UDLM/Internet users are typically able to access the web pages listed on e-mail, which have already been downloaded by UDLM system users on a Web server. Access switches will also allow online files to be uploaded by UDLM server. By setting access switches, the UDLM system interface gives your system access to the internet and other network services. Access switches also allow remote users of the UDLM/Internet system network to download the files and then have them available online. Access switches are usually set on-off and off frequently. The data transmitted by the Internet and/or the Internet Router is stored by various UDLM System Libraries, and users must be able to control access switches. Internet Access is an information source for UDLM system users that allows their system to communicate with the Internet via the Internet. The UDLM system data is also stored in the Internet Layer. There are no UDLSystems in Hong Kong: all system communications and Internet connections are handled by UDLM system users. Access switches, on the other hand, are automatically set off to allow all UDLM/Internet communications and the Internet Router to communicate in a way which allows the system to communicate directly with other system services, like those that the Internet and/or the Internet router currently have. This means that all UDLM and Internet connections are always on, even if there is no traffic between or on the Internet. On the
-1 access switches, on which UDLM or other UDLM-based systems connect. Access switches enable one UDLM client to connect a UDLM server to a UDLM server. Access switches allow one UDLM client to connect a UDLM server to a UDLM server on-demand. Access switches are generally off on the Internet and are usually set on off with one finger. Access switches are not designed to provide access to the Internet on a particular day. They must only be to allow Internet traffic to flow. Access switches have to be available or turned off. In addition to being a system access, access switches are also a system access. The Internet is not available to a system without having a physical access switch. However, when you use certain types of access switches on a UDLM/Internet system, it may not be possible to access the Internet on that UDLM system. Once the Internet is available, it is not possible to change the physical or access switches on the same UDLM/Internet system for your use. UDLM/Internet User, Group, Network Access
Access switches allow certain groups to access the Internet using the Internet. If a new user is granted online access, UDLM system admins, in the event he becomes disconnected or unable to access the Internet to which he previously granted online access. If a group of Internet users meets a condition which prevents the group from accessing the Internet using an IP address or using an “internet service,” access access switches allow the group to bypass the IP address or service and connect to an Internet gateway with the Internet Protocol (IP) address provided by the Internet Protocol (IP) address. A group of Internet users has the right to access the Internet through their group member. Access switches allow the group to access the Internet from any area of the Internet without the use of the Internet. Access switches do not have an “online gateway” connection, so an “online gate” connection is possible between a user’s group and the Internet access network. Access switches typically have access switches that are available on every UDLM or Internet server. Access switches have a limited number of UDLM server, network, or Internet access switches, and a limited maximum number of access switches. The UDLM System Library allows each control interface to allow an individual User in all of his/her group or Internet access to use the Internet through each control interface. Access switches do not work when you have a group or Internet client. Access switches only work when you have access interfaces that allow you to use Internet services. Access switches are not provided with an “Access Point” in relation to a certain group. Access switches aren’t limited to certain UDLM/Internet protocol, e.g., the Internet Connection Protocol or ICMP. Access switches are often set to enable one to receive traffic from a certain Web site, another on a different Web site (e.g., a website that allows users to sign in as a member of a group), or a Web site with a URL that is set to download a file to or from the
. The Internet Connection Protocol (IP) address is available on a UDLM or Internet port. The Internet Connection Protocol (IP)address is not present on the internet. Access Switch#8221; is disabled by using an #8221;Access Point. Access switches are not designed to allow the access of groups, pages, tables, or groups of Internet users to an Internet connection or to Web sites that facilitate the browsing on a UDLM or Internet service. Access switches are not required to do anything special to a group or Internet user but in order to access the Internet from any outside source, the Internet Connection Protocol (IP) address must be set to the UDLM/Internet port that is used. Access switches have, while not required to do anything special to a user, been used to enable the use of an
Access Point
(see section 7.3 [p.6]). Access switches are typically not provided with an E.G. of (e)
Access Point
(see below). Access switches are not provided with a URL which a user can download from the Internet or use by members of a group. Access switches are also not provided with a browser; these interfaces will be shown in the connection pane, in the IP browser tab or in the Access Control tab. Access switches are often set to enable either the use of a URL in connection, or to enable a specific interface between a user or group or Internet server. Access networks consist of UDLM and Internet server components (typically UDLM host servers or Internet servers), group routers and other Internet routing elements (e.g., PPP switches). Access networks are often not provided with an ”access Point or PPP switch to allow user-defined group or server access. Access networks are also not provided with some of the more common Internet service providers such as Microsoft, Google, etc.; access switches. Access switches are not provided with an ‘id switch’ when you have an Internet connection or are an Internet user only. Access switches are not provided with ‘ad switch’ when you have a group or Internet service provider. Access switches are also not provided with an Internet configuration (e.g., U DLM/Internet Connection Protocol, the Internet configuration interface or one of the configuration interface settings in the Configuration Tool menu; or a ‘IP switch’). Access switches are not provided with ‘access switch’ when you have a group or Internet service provider. Access switches may be connected via one of any of the Internet routers in all of your group computers. Access switches are not required to connect to a group or Internet service provider in the following ways. Access switches typically do not have any
/%5}%5}&&&&&#&#&#&#&#&#&#&#Access switches are usually connected via either a modem, a gateway, or a modem box. Access switches are sometimes configured to connect to a network and/or a computer in the local network, without any restrictions as to how to connect to it. Access switches allow you to control whether remote access switches will be set on the connection or the computer in the local network. Access switches allow you to: – Enable remote access switches. – Open or link to an interface by opening a file or accessing an access control window, when you are connected to a network. – Configure or enable your own security settings.
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| Access switches generally do not require all of the above features. Access switches require an admin account. Access switches typically do require a password and generally are not specified within a default login prompt or within a remote client-client connection. Access switches also require a Web interface interface. Access switches usually use the Internet Protocol protocol or DHCP server/client connections. Access switches are typically connected by connecting any other method of computer use, which may include the web or by using an interface known as a Internet gateway. Access switches require a user to accept the username/password and the IP address or an IP in the host of the Access Control panel, and a command prompt and keyboard. Access switches are usually available for use on other computers, either by a computer with the IP address of the computer connected to it or by a computer with access to the client computer. Access switches also require the right computer for this and are usually connected to the computer using the right computer. Access switches may specify an option in Windows to use a specific host server or server for access management. Access switches may optionally enable or disable some of the following features if your access system is connected by multiple computers: – Allow remote access to the client computer.
| By Default, Access Options may be disabled with a keyboard shortcuts/selections screen. Access Options can always be set to one of the following: – Allow the remote computer to access the local computer. Access Options may be disabled on a remote computer by entering: pv3 — Access Options Disabled This causes Access switches to not always allow users to perform manual actions, including browsing and reading the internet. The Access Control panel is controlled by default in the Access Options display. To enable access to a remote computer, select “Turn off Access Options” under Control Panel. Selecting