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configuring-suricata-for-network-monitoring

Deploys and configures Suricata IDS/IPS with Emerging Threats rulesets, EVE JSON logging, and custom rules for real-time network traffic inspection, threat detection, and integration with SIEM platforms for centralized security monitoring.

internal/tools/skills/data/network-security/configuring-suricata-for-network-monitoring/SKILL.md

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# Configuring Suricata for Network Monitoring

## When to Use

- Deploying a high-performance IDS/IPS capable of multi-threaded packet processing for 10+ Gbps network links
- Monitoring network traffic with protocol-aware inspection for HTTP, TLS, DNS, SMB, and other protocols
- Generating structured EVE JSON logs for direct SIEM ingestion without custom parsers
- Running in inline (IPS) mode to actively block malicious traffic at network choke points
- Combining signature-based detection with protocol anomaly detection and file extraction

**Do not use** as a standalone security solution without complementary controls, for encrypted traffic inspection without TLS decryption capabilities, or on systems with insufficient CPU/memory for the expected traffic volume.

## Common Misconfigurations & Verification

- **HOME_NET misdefined:** leaving the default broad RFC1918 list when your assets are a single /24 makes `$EXTERNAL_NET` rules fire on internal traffic (or never). Confirm with `suricata --dump-config | grep HOME_NET` and validate `suricata -T -c suricata.yaml`.
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