ToolScout.

OSSEC

OSSEC detects intrusions and monitors hosts.

Free tierPrice verified 2026-10-02Visit site ↗
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Our verdict

Who it's for

Open-source host intrusion detection

Who should look elsewhere

Complex setup

Pros

  • +Open source HIDS
  • +Good intrusion detection
  • +Self-hostable
  • +Active community
  • +Free

Cons

  • −Complex setup
  • −Learning curve
  • −UI limited
  • −Documentation dated
  • −Resource usage

Key features

  • ✓Host IDS
  • ✓Log analysis
  • ✓File integrity
  • ✓Rootkit detection
  • ✓Active response
  • ✓Open source

Pricing

PlanPriceBillingNotes
Free$0monthOpen source HIDS; Host-based intrusion detection; Log analysis

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