KIT501 ICT Systems Administration Fundamentals Assignment

Assignment Detail:- KIT501 ICT Systems Administration Fundamentals - University of Tasmania Practical Goal The main purpose of this first UNIX tutorial is to ensure that you have a basic familiarity with the UNIX system and some general-purpose UNIX commands- 1- Introducing UNIX Operating System UNIX OverviewAn Operating System -OS- is a set of computer software routines that sits between application programs and hardware devices- An OS provides common services -such as Save, Save As, Print- to applications, which allow applications to access hardware devices- An OS offers a graphical user interface -GUI- and/or command-line user interface -CUI- to computer users, which allow users to run applications -or system programs- for various tasks- UNIX arrived earlier than Microsoft Windows and Mac OS, and has been a platform for serious work: • The Internet with the TCP/IP communication protocol suite were first ported to UNIX-• Unix/Linux has been the dominating Server Operating System for worldwide server computers-• Enterprise-scale databases as well as general e-commerce have been deployed on UNIX • Written in C -a high-level programming language- so can run on nearly all hardware platform- UNIX System Administration• Allocate/close user accounts• Maintain file system• Manage disk space• Maintain security• Take backups• -others - handle hardware devices, reinstall OS, etc- A UNIX system administrator uses or develops shell scripts for automating regular operations- Shell programming or shell scripting will be introduced later in this course- UNIX User AccountsUNIX is security-conscious and can be used only by people who maintain an account with the system- The system administrator has a special user account, called root- The root user -also called super- user- has near-absolute power- Some programs can only be run from this account, eg, the program that creates user accounts- The administrator opens a user account by providing a meaningful string -username- and an un- meaningful string -password-- Users are expected to change their passwords immediately after first login- After this, you are the only person who knows your plain-text password, because UNIX only records encrypted passwords in a file -the UNIX shadow file, /etc/shadow- which can only be read by the system administrator- The following instructions assume you are using an ICT lab desktop machine- Your personal machine will differ depending on which ssh client you have installed- On Microsoft Windows: 1- Find the application named Secure Shell Client- 2- On the Secure Shell Client, click on Quick Connect, enter the UNIX host/server name -ictteach-its-utas-edu-au-, your username, and choose Password as the authentication method- Click on Connect- 3- If the application asks you to save the new host key to the local database, click on Yes- 4- Enter your UTAS password -if your UTAS password is the same as your ICT password- and then click on OK- 5- Now that you are on your UNIX host, you can start to practice UNIX commands- Before this, you can use the small popup window to add a profile: enter the UNIX host name -ictteach- and click on Add to Profiles- Next time you want to set up a connection to the same host you can simply click on Profiles, then on the host name, enter your ICT password, and then you are on your UNIX host- If by the time you finish reading this paragraph the small popup window has disappeared, you can click on "Profiles" then click on "Add Profile" to do this- 6- If the text in front of you appears too small, you can make it larger by clicking on Edit, then on Settings, Global Settings, Appearance, Font to set a larger font size- Attachment:- UNIX Operating System-rar

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