Serveur de fichiers - Episode 3 - La méthode AGDLP

Introduction

This tutorial will guide you through the AGDLP method for managing permissions on a Windows Server file server. Recommended by Microsoft, this method helps organize security groups effectively, ensuring a structured approach to managing access rights. You'll learn how to implement AGDLP with practical examples tailored for Windows Server 2022.

Step 1: Understand the AGDLP Method

AGDLP stands for:

• A: Accounts (User accounts)
• G: Groups (Security groups)
• D: Domain Local Groups (Groups that apply permissions)
• L: Permissions (Assigned access rights)

Key Points

• User accounts should never be assigned permissions directly. Instead, use groups to manage permissions.
• Domain Local Groups are used to define permissions on resources.
• Security groups streamline the management of user access.

Step 2: Create Security Groups

Follow these steps to create well-named security groups:

1. Identify the resources that need access control.
2. Define user roles based on access needs (e.g., read, write, modify).
3. Create groups according to roles:
   • Use clear naming conventions, such as Dept_Readers, Dept_Editors, or Dept_Admins.
   • Ensure names reflect the group’s purpose for easy identification.

Practical Tips

• Avoid overly generic names to prevent confusion.
• Regularly review and update group memberships to align with organizational changes.

Step 3: Assign Domain Local Groups

Once you have your security groups:

1. Create Domain Local Groups for each resource or folder that requires specific permissions.
2. Assign the previously created security groups to these Domain Local Groups.
3. Set the appropriate permissions for each Domain Local Group regarding the resources.

Common Pitfalls

• Do not mix user accounts with Domain Local Groups in permission assignments.
• Ensure that permissions granted are aligned with the principle of least privilege.

Step 4: Implement Permissions

To implement the permissions:

1. Navigate to the resource (e.g., folder or file) where you want to set permissions.
2. Right-click on the resource and select Properties.
3. Go to the Security tab.
4. Click on Edit to change permissions.
5. Add your Domain Local Groups and assign the necessary permissions (e.g., Read, Write, Modify).

Real-World Application

This method ensures that if a user changes roles, you only need to update their group membership instead of changing permissions for each individual user.

Conclusion

The AGDLP method is a powerful framework for managing file server permissions effectively. By organizing users into groups and assigning permissions through Domain Local Groups, you can maintain a secure and efficient file server environment. For further learning, consider exploring additional resources on managing NTFS permissions or creating your first file share on Windows Server.