Meeting 2 introdcution network administrator
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The document discusses network administration, covering topics such as what network administration is, the core management areas including fault, configuration, account, performance and security management, the tasks of a network administrator, how network administration is organized, and challenges and styles of network administration. It provides information on planning, monitoring, maintaining and securing computer networks.
Meeting 2 introdcution network administrator
- 1. 1 tohttps://github.com/syaifulahdan/ Computer Network Administration Introduction Network Administration What is Network Administration The core management areas Fault management Master boot Record Configuration and Name Management OSI - Account Management OSI - Performance Management OSI - Security Management Structure of Systems and Network Management Organisation Corporate Networked Environments Network Administrators Tasks Tasks of a Network Administrator How to be a Sys/Net Admin
- 2. 2 tohttps://github.com/syaifulahdan/ What is Network Administration ??
- 3. 3 tohttps://github.com/syaifulahdan/ Why do we need Network administration at first ??
- 4. 4 tohttps://github.com/syaifulahdan/ The core management areas
- 5. 5 to Fault management The facilities that enable the detection, isolation, and correction of abnormal operation of the OSI environment.
- 6. 6 to Configuration and Name Management The services and facilities that • control • identify • collect and provide data to clients and managed objects, so assisting in continuous operation of interconnection services.
- 7. 7 to OSI - Account Management The facilities that enable charges to be established for the use of managed objects and costs to be identified for the use of those managed objects.
- 8. 8 to OSI - Performance Management The Facilities needed to evaluate Behaviour of managed objects Effectiveness of communication activities
- 9. 9 to OSI - Security Management Address those aspects of OSI security essential to: operate OSI network management correctly and to protect managed objects
- 10. Definitions?? How does Network Administration work in Practice? Let’s look at how Network Management is Organised…
- 11. 11 to Network Hardware Applications Division of Labour Structure of Systems and Network Management Organisation
- 12. 12 to Corporate Networked Environments Have team(s) of specialists in various areas Well defined tasks job descriptions In small networks usually one person multi-skilled and multi-tasked In reality – often somewhere in between….
- 14. 14 to Tasks of a Network Administrator Security Management Performance Management Planning for Growth Fault Management and Recovery Account/User Management Networked Application Support
- 15. 15 to Security Management Firewalls Usernames Password control Resource Access Control
- 16. 16 to Performance Management Availability Response Time Accuracy
- 17. 17 to Planning for Growth A Network (or any organisation) is not static Growth means increased load on a network. This must be planned for…. Systems eventually need replacement. This must be planned for – in advance…
- 18. 18 to Fault Management and Recovery Monitoring Reporting status Testing Fixes and Patches Updates Repairs Change Management
- 19. 19 to Account / User Management Communication Facilities Connection - Rental - Charges Hardware Usage Lease - Rent - Hire Consumables Usage Power, Paper, Media (Diskettes, CDs…) Software Usage Licensing, Tolls, Application usage
- 20. 20 to Account / User Management Accounts are Managed for: Intrusion detection / prevention Charging for Services Legal protection of the Organisation
- 21. 21 to Networked Application Support Client / Server systems support Internet support Server support Applications and Hardware Helpdesk Trouble report / Bug fixes Printing eMail
- 22. 22 to How to be a Sys/Net Admin (yet another Job Description…) Learn Operating System basics eg Unix Learn shell utilities and script programming Learn how to Install and Configure OS Learn DNS and Bind Learn TCP/IP networking Learn NFS and NIS (or equivalent…) Learn about system tuning and accounting Learn Compile and Link (eg C and make)
- 23. 23 to SAGE SysAdmin Job Descriptions http://www.sage-au.org.au/ http://sageweb.sage.org/jobs/thefield/j obs-descriptions.html
- 24. 24 to Goals of System/Network Administration Put together a network of computers Get them running Keep them running (despite Users….) Provide a Service to Users Requires skills of Mechanic Sociologist Researcher
- 25. Challenges of System/Network Administration Systems or Network Administration is more than just installing computers or networks. It is about planning and designing an efficient community of computers that allow users to get their jobs done.
- 26. 26 to Challenges of Administration Design Logical, Efficient networks Easily deploy & update many machines Decide what services are needed know the business tasks & customers Plan and implement adequate security Provide comfortable User environment Be able to fix errors and problems Keep track of & be able to use knowledge
- 27. 27 tohttps://github.com/syaifulahdan/ Style of Network Administration
- 28. 28 to PRACTICE Convention or The Best Solution PRACTICE = “How things are done here” Have you ever wondered… Why are things done in certain ways? Which way is best? Usually it’s because: Someone did it once, and everyone copied without really thinking about it People have thought much about it and this really is the best way… An arbitrary choice was made, and it is now a matter of convention
- 29. 29 to Comparison of System/Network Management Styles Fire-Fighting Managing by responding to situations when they happen (Reactive) Preventative management Monitor network and make repairs and changes before problems appear (Proactive) These are two opposite extremes. Most real managers combine both.
- 30. 30 to Fire-Fighting Investigate the Fault or Problem Isolate the problem and identify/define it Use tests and tools to diagnose the problem Solve the problem and document the solution Prioritize multiple problems
- 31. 31 to Preventative Management The Good Circle management cycle
- 32. 32 to Preventative Management Techniques Capacity Planning Simulation and Testing load generators Benchmarks Performance Monitors and System Tuning Network analysis and modelling Load balancing Hardware upgrades
- 33. 33 to Management method and Cost
- 34. Information about Network Administration The Knowledge…. What is it? Where is it? How do we get it?
- 35. 35 to Sources of Information for System/Network Administrators Manuals and Online Documentation World Wide Web RFCs, FYIs, IENs News groups, Discussion lists, WebLogs Meetings and Seminars SAGE/Usenix, Novell Brainshare, Microsoft TechNet/TechEd How-To books