📊 SIEM & log management
Wazuh
Open-source SIEM and XDR platform with built-in agents for endpoints and servers.
Why use it
Wazuh combines log analysis, file integrity monitoring, vulnerability detection, and configuration assessment in a single open-source stack. The Cyentrix team uses it as the centrepiece of every home SOC build because it ships with agents that work cross-platform out of the box.
What you get
- Centralised log collection from Linux, Windows, macOS and cloud services
- File integrity monitoring (FIM) with real-time alerts
- Vulnerability detection using NVD and vendor feeds
- CIS benchmark compliance scanning per host
- MITRE ATT&CK mapping and rule-based alerting
- Built-in Kibana-based dashboard via Wazuh Indexer
System requirements
| Cpu | 4 cores |
|---|---|
| Ram | 8 GB minimum, 16 GB recommended |
| Disk | 50 GB for moderate logging |
| Os | Linux (Ubuntu 22.04, RHEL/CentOS, Debian) |
| Docker | Yes |
Installation
The all-in-one installer is the fastest path: curl -sO https://packages.wazuh.com/4.7/wazuh-install.sh && sudo bash ./wazuh-install.sh -a. Docker Compose is the cleanest option for homelab use — clone wazuh/wazuh-docker and run docker compose up -d. Agents install via a one-line command per host generated by the manager UI.
Suggested configuration
Enable FIM on /etc, /usr/bin and /usr/sbin on every Linux host. On Windows, monitor C:\Windows\System32 and PowerShell history. Enable the vulnerability-detector module and schedule weekly scans. Forward Wazuh alerts to a Telegram or Slack webhook for high-severity rules (level 12+). Tune false positives by adding local_rules.xml overrides rather than editing core rules.
Integration ideas
- Send alerts to MISP for IoC enrichment
- Forward high-severity events to TheHive for case management
- Pull Suricata alerts into the same index for unified detection
- Use VirusTotal active response for hash lookups
Alternatives
- Graylog — Stronger search UX, lacks the built-in agent ecosystem.
- Security Onion — Bundles Wazuh + Suricata + Zeek but heavier; better for full NSM.
- Elastic Security — More polished UI; free tier limits some detection rules.
Cyentrix verdict
The default starting point for a home SIEM. The agent ecosystem is unmatched at this price (free), and the all-in-one installer collapses what used to be a multi-day deployment into an afternoon. Plan for 16 GB RAM if you want it to feel responsive.