Computer Networking and Management Case Study Example | Topics and Well Written Essays - 4500 words

Computer Networking and Management - Case Study Examplefigurations at the data center core switch enable functional areas deep down distributively department to operate as independent LANs regardless of their physical locations.Internet-enabled Client ApplicationsThe following typical applications are allowed by the security management team to glide slope the Internet1. Web browsers (IE 7).2. Email client (Outlook 2007).3. Skype client used for voice chat, instant messaging, video conferencing, and low-cost Internet telephony. These applications were found essential to facilitate fast contact and collaboration across to other universities and research institutions.No other network applications are allowed access to the Internet. The above Internet clients operate at designated transmission control protocol ports, which are open but monitored and occasionally audited though the firewall, to ensure compliance with security and IT access policy set forth by the campus network manage ment. both other applications requiring access to university wide intranet resources achieve that through a web interface and therefore do not require having arbitrary ports open.Figure harbour shot of web browser, email client, and IM/IPT clientsServersServers, central security appliances, and edge network appliances are all housed in a secure one- direct data center, located within the same campus area. Servers are connected to the main access router via a 10Gbps optical Ethernet. Table 2 illustrates the horde distribution, platforms, and functionality.Web waiter (Linux)1 central serverHosts the intranet portals and internal applicationsMail server (Exchange over Windows 2003)1 central serverHosts all email accounts and archivesDomain Controller (Windows 2003)1 central serverManages DNS, DHCP, and Active DirectoryAntivirus server (Linux)1 central serverManages... This document demonstrates the understanding of some major aspects of computer networking, over three distinct sec tions. Section 1 considered the internal network of the College of Engineering and presented detailed high level description of user, server, network, and security designs of the network and how it connects to the Internet and to the university core intranet. Section 2 examined the important proceeds of data encryption. Symmetric and asymmetric ciphers have been described and contrasted. Examples of each have been provided. Also, the use of encryption for message authentication in the form of digital contact and/or message authentication code was discussed and the two schemes were compared. Section 3 considered the topic of congestion control and avoidance for TCP/IP networks, which make the general transport infrastructure of almost all todays public and private data networks. Congestion control algorithms were discussed at a topical level and a comparative description of three algorithms (Tahoe, Reno and Vegas) was provided. Section 3 concluded with describing the role of an HT TP proxy and the performance penalty it encounters due to the common use of database drive dynamic web content.