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Security for multi-tenant hosting

Layered controls that reduce cross-user risk and improve operational accountability.

Defense in depth

Multiple layers, one product

Isolation, kernel policy, observability, and rootless containers work together on shared nodes.

SecureLinks

Kernel-only symlink-if-owner enforcement. Download, build, load, and apply via simuzo --securelinks. Auto-apply paths on boot and install when enabled.

SecureLinks docs →

SimuzoFS jails

Filesystem isolation so accounts operate inside constrained views instead of the full host tree.

SimuzoFS →

Audit trail

Security-relevant event logging with retention settings and a dedicated service for compliance workflows.

Audit docs →

Process monitoring

Keep processes associated with the correct cgroups and maintain operational control of abusive workloads.

Rootless containers

Container Manager avoids granting host root; port publishing uses allocation and proxies rather than raw privileged binds.

Containers →

Admin hygiene

API key scoping, debug levels, service controls, and task logs support safer day-2 operations.

SecureLinks

Kernel policy, not fragile userspace hooks

SecureLinks enforces symlink ownership rules in the kernel so unprivileged processes cannot follow foreign symlinks to sensitive targets—a classic multi-tenant risk class.

  • simuzo --securelinks status
  • Download prebuilt modules or build for your kernel
  • Enable/disable and apply on boot paths
SecureLinks guide
Audit trail interface
FAQ

Common questions

What is SecureLinks?

SecureLinks is a kernel module that enforces a symlink-if-owner policy: unprivileged users cannot follow symlinks they do not own, mitigating classic multi-tenant symlink races.

Does SecureLinks require a matching kernel build?

Yes. Modules are per uname -r. Simuzo can download a prebuilt module from the Softaculous mirror or build locally with kernel headers/devel.

How does this fit with SimuzoFS?

SimuzoFS constrains filesystem views; SecureLinks hardens symlink follow policy at the kernel; audit and process monitoring add operational accountability.

Ready to secure your hosting nodes?

Install Simuzo on your panel server, enable isolation and limits, and give users a safer multi-tenant environment.

Product news, security improvements, and release notes for hosting providers.