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Module 1 Topic 1 - Module 1 Topic 1 Page 1/18 Module 1...

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Module 1, Topic 1 Page 1/18 Module 1, Topic 1 - The Responsibilities of a System Administrator Return to List of Topics. Topics in this module: Reading What is System Administration? o What is excluded o What is included Hardware for LAN functions o Server function o Internal Communications o External Communications o Computers o Update policies o Peripherals - input devices o Peripherals - output devices Hardware for multi-user computers o Host computer o Terminals o Output devices o Input Devices Software for LAN's o System software o Terminal (PC) network software o Application software o Peripheral drivers etc Software for multi-user systems o System software o Application software Other User's Issues o Enabling new users etc Other policy issues General Tasks o Regular o Irregular o Rare Self Assessment Exercises Reading Chapter 1 of Systems Administration.
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Module 1, Topic 1 Page 2/18 What is System Administration? What is Excluded For the purposes of this course, we will exclude the following scenarios. 1. Single-user systems running MS-DOS, MacOS, etc. 2. These are also excluded even if they do have access to a network service like email or the WWW via an ISP. 3. Single-user systems running a multi-user operating system like Unix. 4. Small peer to peer systems of two or three PC's. 5. Home access to email and the net doesn't qualify either. What is Included System Administration includes: 1. A collection of machines of the kinds mentioned above, if there are some services provided on a network-wide basis, such a backup, printing, file service. 2. Multiple machines connected via a network operating system. 3. System wide activities which service all nodes do qualify. 4. Also, of course, the usual LAN, such as Novell, which includes network access to system and application files, as well as such hardware as printers, modems, and other forms of input and output devices. System Administration also includes responsibility for: 1. Standard multi - user computers, ie classic mainframes, etc. 2. Standard Local Area Networking of PC's or similar. That is, machines providing network-wide services which are sufficiently important to prevent other machines on a shared LAN from working if they fail. For example file servers. 3. Note also, multi - site organisations often need network functionality across town, or across the country. In this case: 1. Who has responsibility for managing the overall net? 2. Do you have site managers, and a senior manager responsible for all sites? 3. Could this mean that sites could become slightly different? If so, what are the implications of this lack of uniformity? Does this generate incompatibility, and how do you prevent this?
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Module 1, Topic 1 Page 3/18 The solutions to these questions will often be specific to each situation, the important point is that chaos is lying in wait for the unwary - constant monitoring is essential.
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