Enterprise Linux architecture
RedHat, Ubuntu, SUSE and Debian environments designed for the lifecycle you actually run, from provisioning to patch policy to end-of-life migration.
Enterprise Linux platform engineering, DevOps and security consulting in the Netherlands
Enterprise Linux. Secure by design. Ready for tomorrow.
Linux infrastructure that stays secure, stable and recoverable.
Senior Linux, platform and security engineering for Dutch organisations operating complex, business-critical environments.
Security by design
Hardened systems and proactive risk reduction.
Linux platform engineering
Architecture, lifecycle management and seamless integration.
Automation and reliability
Ansible, observability and CI/CD for consistent, dependable results.
Direct technical advice
Clear communication. No unnecessary complexity.
Services
What we take off your plate
Every engagement is run by a senior engineer, not routed through a support desk. You get one point of contact who actually does the work.
DevOps & infrastructure as code
Ansible playbooks, CI/CD pipelines and Kubernetes rollouts built to be re-run safely, not one-off scripts nobody wants to touch again.
Site reliability engineering
Monitoring, alerting and incident response tuned to your actual failure modes, so on-call means something real instead of noise.
Cloud & security architecture
Hardening baselines, network segmentation and access control that hold up under audit, not just under a demo.
Managed services
Ongoing operational ownership for teams who need senior Linux coverage without carrying a full-time hire.
Forensic & incident analysis
Root-cause investigation after an incident, with a clear report and the concrete fix — not just a summary of what went wrong.
Approach
How an engagement actually runs
Four steps, in order, every time. No phase starts until the one before it is signed off.
01
Discovery
We map what's actually running today — services, dependencies, and the risks nobody's written down yet.
02
Assessment
A prioritised, plain-language report: what's fragile, what's urgent, and what can wait.
03
Implementation
Changes go through code and automation, tested before they touch anything live.
04
Handover & support
Your team gets documentation they can actually use, plus a direct line to us afterwards.
harden_baseline.yml
# Idempotent by design — safe to run against production, every time.
- name: Apply hardened baseline
hosts: production
become: true
tasks:
- name: Enforce SSH key-only auth
lineinfile:
path: /etc/ssh/sshd_config
regexp: '^PasswordAuthentication'
line: 'PasswordAuthentication no'
notify: restart sshd
- name: Confirm firewalld default zone is locked down
command: firewall-cmd --get-default-zone
changed_when: false
register: fw_zone
failed_when: fw_zone.stdout != 'drop'
About LinuxCore
Built for organisations that can't afford surprises.
LinuxCore is the enterprise infrastructure practice within the Wonder Cohen group. We work with Dutch organisations where downtime isn't an inconvenience — it's a liability.
No account managers, no junior bench. Every engagement is led by a senior engineer who stays with the project from discovery through handover.
Part of the Wonder Cohen group →24h
Direct response window for managed-service clients.
1
Point of contact, start to finish — no ticket queue.
100%
Changes shipped through code and automation, not manual commands.
NL/EU
Based in the Netherlands, working across the EU.
Projects
What we're building
Ventures under the Wonder Cohen group that put this same engineering discipline into a product.
PQCore
PQCore grew out of the same practical infrastructure mindset behind LinuxCore: build defensible systems, test them honestly, and state the limitations clearly.
MVP v1.0.0 has now shipped, and the project has moved into post-MVP hardening and validation.
Visit PQCore →Tell us what's actually running.
Send a short description of your environment and what's not working. You'll hear back from an engineer, not a form response.
Or reach us directly at info@linuxcore.nl