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Lab Exercise 1901: Users, Logon, and Simple File Sharing 275
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FIGURE 19-3 My Computer
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FIGURE 19-4 Turning off simple file sharing
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276 19: Computer Security
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Step 8 Up to this point you ve been using the classic Windows logon prompt, so let s change this While still logged on as administrator, go to User Accounts in Control Panel, select Change the way users log on and off, and then select the Use the Welcome Screen check box as shown in Figure 19-5 Step 9 Practice logging on and off your TIMMY, FRED, and administrator accounts Compare the Welcome screen to the classic logon screen why would Microsoft provide two totally different ways for you to log on to a system Write down your answer, comparing the features of both logon methods Here s a hint that will help with a part of your answer: You cannot use the Welcome screen on a system that is a member of a domain why would Microsoft create this limitation Step 10 Log on as administrator Once again go to User Accounts in Control Panel and select Change the way users log on and off This time, select the Use Fast User Switching check box, as shown in Figure 19-6 Fast User Switching becomes obvious once you try logging off Instead of returning to the Welcome screen, what options do you see What are the benefits of Fast User Switching Come up with a work environment where Fast User Switching would be beneficial
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FIGURE 19-5 Enabling the Welcome screen
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Lab Exercise 1902: Groups and Standard File Sharing 277
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FIGURE 19-6 Fast User Switching
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Lab Exercise 1902: Groups and Standard File Sharing
Now that you understand simple file sharing, it s time to increase the complexity by un-simplifying file sharing! In this lab, you ll see the true firepower of NTFS as you use standard file sharing on a standalone system
Learning Objectives
At the end of this lab, you ll be able to
Recognize the standard NTFS permissions Con gure NTFS permissions for a shared folder on a standalone system Recognize and con gure NTFS permission inheritance
Lab Materials and Setup
The materials you need for this lab are
The system you used in the previous lab Access to the local administrator password
278 19: Computer Security
Getting Down to Business
Step 1 Log on as administrator, verify that simple file sharing is disabled, and then use My Computer to open the Local Disk (C:) folder Right-click this folder and select Properties to display the Local Disk (C:) folder s properties Click the Security tab, and you should see something similar to Figure 19-7 Now that you re no longer using simple file sharing, you can control access to any folder on your computer assuming you have the right to control access! Given that you are logged on as administrator, you have complete control Step 2 Note the two head icons on the top of the Security dialog box These are groups Groups are handy when you want to give a number of users specific NTFS permissions for one or more folders Close the Security dialog box, navigate to Computer Management, and select Local Users and Groups Click the Groups folder to see something like Figure 19-8 These are all of the built-in groups for your system The three most important built-in groups are Administrators, Power Users, and Users Each of these groups has a complex set of things they can and cannot do, but let s start by looking at what they can do when it comes to file sharing:
Administrators Have complete control of all NTFS permissions Any user who is a member of this group has all the same power as the administrator account use it sparingly!
FIGURE 19-7 The Security tab under Local Disk (C:) Properties
Lab Exercise 1902: Groups and Standard File Sharing 279
FIGURE 19-8 Groups
Power Users Can create users and groups, but they cannot change any NTFS settings unless they have the right to do so Users Can only change NTFS permissions on a folder if they have been given the right to do so Anyone with a user account on the system is a member of this group
You used the User Accounts Control Panel applet to make the FRED and TIMMY accounts When you created those user accounts, you were given two choices as to the type of account you want to make When you set the type of account, what were you really doing as far as Windows was concerned Using the Local Users and Groups tool in Computer Management, answer this question: What group is a limited account type assigned to Step 3 Still using the Local Users and Groups tool in Computer Management, make the FRED and TIMMY user accounts members of the Power Users group Here s a clue how to do it: Rightclick either the Power Users icon or right-click each user both ways work! How many users were members of the Power Users group before you added Timmy and Fred Step 4 Still logged on as administrator, go back to the Local Disk (C:) Security dialog box you saw earlier (refer back to Step 1 to remind you how to get to this) This time let s concentrate on the Permissions at the bottom of the dialog box Step 5 You ll notice some groups in the list that were not in the Local Users and Groups utility These specialty groups are used to help organize NTFS permissions For example, the System group is used by the operating system itself (yup, even Windows needs permission sometimes!),
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