CloudLinux

CloudLinux CageFS Basics for Account Isolation

Published / Updated: 13-Sep-2026

CageFS helps isolate users from one another and limits visibility into other accounts on the same server. This reduces the blast radius of many common shared-hosting issues.

Why It Matters

  • Compromised accounts have less visibility into the broader environment.
  • Access to sensitive binaries and paths can be controlled more consistently.
  • Per-user environments become easier to reason about during support review.
  • Isolation improves confidence in multi-tenant service operations.

Operational Note

Isolation is most effective when combined with disciplined permission management, patching, and account lifecycle controls. It should be treated as one layer in a broader security posture.

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