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ICT 138: Network Management & Security

Introduction. ICT 138: Network Management & Security. Contents. Network Management Overview Sample Scenario where NM is Applied 5 Management Functions Importance to Business Processes Network Security Overview Some Secure Systems. Network Management Overview.

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ICT 138: Network Management & Security

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  1. Introduction ICT 138: Network Management & Security

  2. Contents • Network Management • Overview • Sample Scenario where NM is Applied • 5 Management Functions • Importance to Business Processes • Network Security • Overview • Some Secure Systems

  3. Network ManagementOverview • Network Management refers to the activities, methods, procedures, and tools that pertain to the operation, administration, maintenance, and provisioning of networked systems. • Operation- keeping the network up and running smoothly. It includes monitoring the network to spot problems as soon as possible, ideally before users are affected. • Administration- keeping track of resources in the network and how they are assigned. • Maintenance - performing repairs and upgrades • Provisioning- is concerned with configuring resources in the network to support a given service. For example, this might include setting up the network so that a new customer can receive voice service.

  4. Network ManagementSample Scenario : Distributed Data Storage (DDS)

  5. Network Management5 OSI Network Management Functions • 1. Fault management • 2. Configuration management • 3. Accounting management • 4. Performance management • 5. Security management

  6. Network ManagementImportance to Business Processes • They relate to the levels of network, system, and application management. More and more importance is being attached to network systems and their management because competition is increasingly being based on the processing and exchange of information—often in place of real values or things (e.g., the stock market, money transfer, ordering goods, along with simulation and virtual reality) Many companies are in the process of using “business engineering” to adapt their business processes to this information-based competition.

  7. Network SecurityOverview • Computer networks are typically a shared resource used by many applications representing different interests. The Internet is particularly widely shared, being used by competing businesses, mutually antagonistic governments, and opportunistic criminals. Unless security measures are taken, a network conversation or a distributed application may be compromised by an adversary. • The Main tools for Network Security are Cryptography and Firewalls.

  8. Network SecuritySecure Systems • Pretty Good Privacy (PGP) • Secure Shell (SSH) • Transport Layer Security (TLS, SSL, HTTPS) • IP Security (IPsec) • Wireless Security (802.11i) Most, if not all, of these Systems use Cryptographic Algorithms, Key Pre-Distribution Mechanisms, and Authentication Protocols.

  9. Assignment • ½ Yellow Paper • Why (in your own opinion) is Network Management and Security important to Businesses? • What are the 7 OSI Layers? Give a brief description of Each • What is the average salary range of Network/System Administrators in USD?

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