"From soaring cloud costs to risk ownership, data sovereignty and legacy compatibility, there are many reasons why organizations continue to rely on file servers for inexpensive and abundant local storage," wrote Tenfold Software in a sponsored guide distributed through BleepingComputer.
Why Tenfold Software says file servers will stay
Even in an era dominated by cloud services, the source material argues that "countless organizations continue to maintain on-premises file servers alongside their various SaaS subscriptions." The reasons cited are concrete: rising subscription costs, questions about data ownership, regulatory and sovereignty requirements, and compatibility with legacy applications. Those constraints, the piece says, have led some organizations to pause or rethink cloud migrations and to keep on-prem file servers as a low-cost, controllable option for large volumes of data.
Never assign permissions directly to users
The guide makes a blunt operational recommendation for administrators: "Never assign permissions directly to users." Instead, it prescribes using dedicated, single-purpose security groups with a consistent naming scheme (an example given is fs_finance_read). The rationale is transparency and manageability: group membership is easily visible on a user object, while one-off folder permissions show up only in the folder's properties, where they are harder to discover. The source warns that even in small environments, ad-hoc permissions become effectively invisible and create governance blind spots.
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End the scrambleNest groups with the AGDLP model to implement role-based access
To scale group-based access, the article recommends nesting groups using the AGDLP model. Administrators should create global groups that map to organizational roles — sales, customer support, human resources — and then add those global groups to resource-specific permission groups. The nested flow described is "accounts, global groups, domain local groups and finally permissions." Following AGDLP, the source says, allows teams to grant new users all required access simply by adding them to the appropriate global role group, effectively implementing a form of role-based access control for file server and Active Directory resources.
Set share permissions leniently, control access with NTFS, and avoid breaking inheritance
The guide differentiates share permissions from NTFS permissions and prescribes a specific approach: set share permissions relatively leniently — for example, "Change for users and Full Control for admins" — and rely on NTFS permissions for fine-grained control. It notes a key interaction: when NTFS and share permissions intersect, "the more restrictive permission level wins out." On folder structure, the recommendation is to manage permissions at the top levels and let inheritance do the work. Ideally, explicit permissions should not be set deeper than "two or three levels down your directory tree." Where legacy clutter or urgent requests push admins to force access on deep folders, the source suggests creating new folders or moving data up the tree as preferable alternatives to breaking inheritance and inviting long-term complexity.
Apply the Principle of Least Privilege — and review it regularly
The Principle of Least Privilege is presented as foundational: users should have only the access strictly required for their jobs and the most restrictive permission level that still allows the task. Importantly, the guide stresses that least privilege is not a one-time check. Responsibilities change, and permissions that were appropriate at assignment may become outdated "after a month? A quarter? A year?" To keep privileges aligned with job duties, the source urges periodic reviews and revocation of unnecessary rights, but concedes that such audits are hard to carry out without centralized governance. "Manual oversight simply is not up to the task when it comes to enforcing least privilege access," the piece states.
How this lands for sysadmins, procurement leaders, and executives
- Sysadmins and security teams: The article directs them to practical changes — stop applying direct user permissions, adopt AGDLP nesting, favor NTFS for enforcement, and avoid breaking inheritance — all aimed at reducing invisible, one-off access and simplifying audits.
- Procurement and IT leaders: Rising cloud subscription costs and data-sovereignty concerns are presented as valid reasons to retain on-prem file servers. The guide frames these constraints as procurement considerations that may favor hybrid or on-prem approaches over full cloud migration.
- Executives and compliance officers: The source underscores the need for periodic access reviews and centralized governance to meet retention, backup and regulatory responsibilities, while warning that manual processes will not scale.
Finally, the guide positions automation as the practical route to implement these controls at scale. It describes Tenfold as a "fully automated platform" that can handle provisioning, approval workflows, group management, and provide "in-depth visibility into every level of your directory tree," tracking both local and cloud privileges. Tenfold's capabilities are listed as Identity Governance, Data Access Governance, and Event Auditing combined in one platform — a claim clearly presented as the vendor's offering rather than independent verification.
For organizations balancing cost, control and compliance, the source makes a clear argument: file servers are likely to remain part of the mix, but safe, efficient operation depends on rigorous access governance — and, the vendor advises, automation to make that governance feasible.
Read the original piece: https://www.bleepingcomputer.com/news/security/file-servers-are-here-to-stay-heres-how-to-manage-them-securely/
