barcode vb.net codeproject Exercise 3: Correct Authentication and Account Problems in C#.NET

Creating Code 3 of 9 in C#.NET Exercise 3: Correct Authentication and Account Problems

Exercise 3: Correct Authentication and Account Problems
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1. Open Active Directory Users And Computers. 2. In the tree pane, navigate to and select the Employees OU. 3. In the details pane, select Danielle Tiedt s user object. 4. From the Action menu, click Reset Password. 5. Type Danielle Tiedt s original password as the new password. Why are you able to change the password when, while logged on as Danielle Tiedt, you could not 6. Select Lorrin Smith-Bates s user object. 7. From the Action menu, click Properties. 8. In the Account tab, clear the Account Is Locked Out check box. 9. Click OK.
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Summary
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You must be a member of the Enterprise Admins, Domain Admins, or Account Operators groups, or you must have been delegated administrative permissions to create user objects. User objects include the properties typically associated with a user account, including logon names and password and the unique SID for the user. They also include a number of properties related to the individuals they represent, including personal information, group membership, and administrative settings. Windows Server 2003 allows you to change some of these properties for multiple users simultaneously. A user object template is an object that is copied to produce new users. If the template is not a real user, it should be disabled. Only a subset of user properties is copied from templates.
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User Accounts
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The Csvde command enables you to import directory objects from a commadelimited text file. Windows Server 2003 supports powerful new command-line tools to create, manage, and delete directory objects: Dsquery, Dsget, Dsadd, Dsmove, Dsmod, and Dsrm. Frequently, Dsquery will produce a result set of objects that can be piped as input to other commands. Windows Server 2003 provides individual profiles for each user who logs on to the system. Profiles are stored, by default, on the local system in %Systemdrive% \Documents and Settings\%Username%. Roaming profiles require only a shared folder, and the profile path configured in the user object s properties. Preconfigured profiles are simply profiles that are copied to the profile path before the profile path is configured in the user object. Group profiles must be made mandatory, by renaming Ntuser.dat to Ntuser.man, so that changes made by one user do not affect other users. The Default Domain Policy drives account policies, including the password and lockout policies, whereas the Default Domain Controllers Policy specifies key auditing policies for domain controllers. Auditing for authentication generates events in each domain controller s security logs.
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Before taking the exam, review the key points and terms that are presented below to help you identify topics you need to review. Return to the lessons for additional practice and review the Further Readings sections in Part 2 for pointers to more information about topics covered by the exam objectives.
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Key Points
The group memberships or permissions, or both, required to create user accounts. The options at your disposal for creating or managing multiple user accounts: user templates, importing, and command-line utilities. Understand the differences among the options, and the relative strengths and weaknesses of each option. The properties that can be accessed or modified, or both, when creating a user, modifying a user in Active Directory Users And Computers, copying a template, querying with Dsquery, or adding and modifying users with Dsadd and Dsmod. The process for configuring a roaming user profile, a preconfigured roaming user profile, or a preconfigured, mandatory group profile.
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User Accounts
The impact of Group Policy on password and account lockout settings. How to audit authentication events.
Key Terms
user account template You might hear this referred to by other terms, but the idea is the same. A template account is used as the basis for new accounts. It is copied to create a new user, and some of its properties, most notably its group memberships, are copied as well. disabled account versus locked account An account is disabled if it has expired or if it has been disabled by an administrator. An account is locked out if it has been subject to invalid logons beyond the threshold specified by the account lockout policy. mandatory profile A user profile that does not maintain modifications between sessions. A user can modify a mandatory profile, but users changes are not saved when they log off. Group profiles must be made mandatory, or a change made by one user will affect all users.
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