Guilgo Blog

Notes from my daily work with technology.

Kubernetes audit in Wazuh: policy, volume, and webhook (after we broke it)

How to harden the audit policy, keep the disk from filling up, and stop the webhook from swallowing whole EventLists

Hardened Kubernetes audit for Wazuh: first-match policy, port 8088, and one event per datagram—what eight months in a k3s homelab taught us.

Posted by David Guillermo on Saturday, October 3, 2026

Monitor Docker containers with Wazuh docker-listener: no custom rules needed

On 4.14.7 the official ruleset already keys off docker.Action; keep the socket on the host agent, not the manager

Enable Wazuh docker-listener on 4.14.7 without custom rules: the official ruleset already maps docker.Action, and the socket stays on the host agent.

Posted by David Guillermo on Friday, August 28, 2026

Integrating urlscan.io with Wazuh-lite for Automated Alert Enrichment

Automatically enrich AdGuard and parental control alerts with urlscan.io, dual Telegram notifications, and real reputation verdicts

Learn how to integrate urlscan.io with Wazuh-lite to enrich AdGuard alerts with URL reputation and threat intelligence while keeping your SIEM workflow.

Posted by David Guillermo on Saturday, July 25, 2026

How to Detect Compromised AUR Packages with Wazuh and Telegram on Arch Linux

Hourly checks against aur-malware-check, custom decoders, and level-12 alerts if a package from the atomic-lockfile attack is installed

Guide to detect compromised AUR packages on Arch Linux using Wazuh and Telegram: hourly aur-malware-check, custom decoders, and level-12 alerts.

Posted by David Guillermo on Sunday, June 14, 2026

Wazuh 5: a production survival guide

Verifiable criteria to go live without the stack overwhelming you

Verifiable criteria to take Wazuh 5 to production: predictable upgrades, signal vs noise, indexer performance, and a pilot with a clear stop rule.

Posted by David Guillermo on Wednesday, April 29, 2026

Build a proactive SOC in a homelab: Kubernetes, Docker, Wazuh, Trivy and Telegram

Low-noise periodic checks: broken pods, high Wazuh alerts, CVEs in exposed images and Telegram reports, with deduplication and clear severity policy

Guide: proactive homelab SOC with k3s, Wazuh, Trivy (CVEs on exposed Docker images) and Telegram. Cron, low noise, dedupe and actionable alerts.

Posted by David Guillermo on Sunday, April 26, 2026

avatar

Sysadmin, self-taught by curiosity.

FEATURED TAGS
adguard arch-linux docker homelab k8s kubernetes linux microsoft monitoring parental-control powershell security siem sysadmin tech telegram wazuh wsus