Linux & Server Hardening
Most of our work tells you what's wrong. This is where we go fix it.
Baseline audits, file integrity monitoring, and intrusion prevention — deployed and tuned on your systems, not just recommended in a report.
What We Harden
Each engagement is fixed-scope: we audit, remediate, and hand off a system you own and understand — not an ongoing subscription.
Security Baseline Audit
A CIS-aligned configuration audit of your Linux systems — kernel settings, file permissions, open ports, and account policy, scored against a recognized hardening index.
- Automated baseline scan across your fleet
- Prioritized findings, not a raw tool dump
- CIS Benchmark alignment scoring
- Fixed-scope remediation plan
File Integrity Monitoring
A tuned, low-noise file integrity baseline so you know the moment a system binary or config file changes — without the false-positive fatigue that makes most FIM tools get disabled within a month.
- Cryptographic baseline of critical system paths
- Automated re-baselining after package updates
- Alerting wired into your existing workflow
- Documented recovery procedure for real alerts
Automated Intrusion Prevention
Local, log-driven defense against brute-force and credential-stuffing attempts — reading your system logs and updating firewall rules automatically, no agent fleet required.
- Brute-force protection tuned to your services
- Firewall integration (firewalld / nftables)
- Allowlisting for your known-good sources
- Ban-log review and tuning pass
Our Approach
Technical work should end with you in control of your systems — not dependent on us.
Fixed-Scope Engagements
This isn't managed monitoring or an ongoing SOC contract. We harden what's in scope, document it, and hand it back to your team.
Low-Noise by Design
A security control that cries wolf gets disabled within a month. We tune every deployment against your actual environment before we call it done.
Documented Handoff
Every engagement ends with runbooks for your team — how to read an alert, update a baseline, and keep the system running after we're gone.
Open-Source Tools, Deployed Right
We don't sell you a proprietary agent stack. We deploy proven, well-maintained open-source tools — the same ones we run ourselves — configured for your environment instead of left at their noisy defaults.
What Makes This Different
- We use what we deployEvery tool here runs on our own systems first — not vendor-pitched, practitioner-tested
- No agent sprawlLocal, log-driven tools — no third-party cloud dashboard holding your telemetry
- Built to survive updatesAutomated re-baselining so routine patching doesn't bury real alerts in false positives
- Pairs with our assessmentsThe natural next step after a Security Assessment or NIST CSF gap finding
Engagement Process
Bounded in scope, clear in outcome — you'll know exactly what you're getting before we start.
Baseline Audit
Run a Lynis-driven scan and review current hardening posture
Remediation Plan
Scope fixes and monitoring to your environment, not a generic checklist
Implementation
Deploy and tune FIM, intrusion prevention, and detection tooling
Handoff
Deliver runbooks, automation hooks, and a clean re-audit result
Ready to actually fix what an audit finds?
Let's scope a hardening engagement for your Linux systems — fixed scope, clear deliverables, no ongoing contract required.
Schedule a Hardening Engagement