Open Source

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Why rkhunter Still Matters

Rootkit detection tools are the unsung heroes of a hardened Linux box.
Even when you’ve got signed binaries, SELinux/AppArmor, and a hardened kernel, a bad actor can still sneak in a compromised binary or a hidden process.
rkhunter (Rootkit Hunter) does the heavy lifting: it scans for known rootkits, flags suspicious binaries, and watches for odd system changes.
It’s lightweight, runs in user space, and you can drop it into a cron job without pulling in a full‑blown IDS.
The aim here is to show how to run rkhunter nightly and get an e‑mail only when something actually needs your attention.

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Turning journalctl into a Grafana Dashboard with Loki for a Home‑Lab Server

Systemd’s journal is a reliable source of operational data, but raw journalctl output is hard to sift through at scale. Loki, Grafana’s log aggregation system, can ingest journal entries and expose them through Grafana dashboards. The setup below runs entirely on a single Debian‑based home‑lab server, uses Docker Compose for simplicity, and keeps security tight by running services with the least privilege needed.

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In today’s digital world, maintaining robust security is more critical than ever. Cyberattacks are becoming increasingly sophisticated, and businesses of all sizes must constantly stay ahead of evolving threats. One way organizations can ensure a strong defense is by leveraging Security Information and Event Management (SIEM) solutions. These platforms help security teams detect, respond to, and manage security incidents in real time.

Among the various SIEM solutions available, Wazuh has emerged as one of the most powerful and flexible open-source tools for security monitoring and incident detection. Wazuh provides real-time log analysis, threat detection, and security monitoring that can help organizations safeguard their systems, comply with regulatory standards, and streamline their security operations.