Best Practices for Authorizing Shares and NTFS Permissions to File Servers

Best Practices for Authorizing Shares and NTFS Permissions to File Servers

Authorizing shares and NTFS permissions to file servers is an important security measure. Here are some best practices:

1. 1.       Minimize Permissions

To reduce the risk of security vulnerabilities, permissions should be minimized. Only grant users or groups the lowest permissions they need to complete their tasks.

1. 2.       Use Groups to Grant Permissions

Assign users to groups and use groups to grant permissions. This makes permission management easier and more maintainable. If there are multiple users who need the same permissions, assign them to the same group and grant that group the required permissions.

1. 3.       Use Role-Based Access Control (RBAC)

Using an RBAC model can help manage permissions better. In an RBAC model, users are assigned to roles and roles are granted access permissions. This makes permission management simpler and more maintainable because access permissions can be assigned and revoked based on the users role.

1. 4.       Review Permissions Regularly

Regularly review the permissions of users and groups to ensure they only have the lowest permissions required. If unnecessary permissions are discovered, they should be removed promptly.

1. 5.       Use Auditing

Enable auditing to track user activity. This can help identify security vulnerabilities and unauthorized access so that measures can be taken to prevent such issues from happening again.

1. 6.       Use Security Groups

Use security groups to organize users and grant access permissions as needed. This makes permission management easier and more maintainable because access permissions can be granted and revoked for security groups instead of individual users.

1. 7.       Assign Share Permissions

Share permissions should be limited to the user groups that need access to the share. Predefined share permissions such as "Read", "Write", "Modify", etc. should be used as much as possible to reduce the risk of configuration errors.

1. 8.       Assign NTFS Permissions

When assigning NTFS permissions, consider the following:

Who needs access to the file or folder?

What level of access permission do they need?

How will access permission be granted?

It is recommended to use the following best practices on file servers:

·         For NTFS permissions, use the principle of least privilege, assign users to groups, and grant each group the required permissions.

·         For share permissions, use predefined share permissions and limit access permissions so that only users who need access to the share can access it.

·         Regularly review permissions and remove users and groups that are no longer needed.

·         Enable auditing to track user activity to identify security vulnerabilities and unauthorized access.