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Explainers

Clear, practitioner explainers of the core security concepts: what each one is, how it actually works, and where it breaks.

Explainers

How to Use Syslog in Linux: Read, Write and Forward Your Logs

How to use syslog in Linux: read logs with journalctl and /var/log, write entries with logger, and forward them over TCP with an rsyslog queue that survives

Explainers

How to Use the Wazuh Agent: Configure, Group, and Troubleshoot It

How to use the Wazuh agent: enroll it into a group, manage its settings centrally with agent.conf, and fix agents stuck as Never connected or Disconnected.

Explainers

How to Write an Incident Response Plan That Works Under Pressure

How to write an incident response plan: severity levels tied to real alerts, roles, runbooks, pre-approved containment, evidence, and a tested worked example.

Explainers

How to Use Wazuh as an EDR: Detection and Active Response

How to use Wazuh as an EDR: the real config for endpoint detection, Sysmon ingestion, and scripted active response, plus where it stops short of a full EDR.

Explainers

How to Use wazuh-logtest to Debug Wazuh Decoders and Rules

How to use wazuh-logtest to test Wazuh decoders and rules: run the CLI, read all three phases, use verbose mode, and fix a rule that will not fire as expected.

Explainers · 12 min read

WHMCS CVE-2026-67399: Stopgap Hook If You Cannot Upgrade Yet

A defense-in-depth WHMCS hook that blocks the payload classes CVE-2026-67399 most likely needs, for installs that cannot reach 8.13.7 or 9.0.8 yet. Not a fix.

Security news

Unisoc modem flaw lets an answered video call take over the Android kernel, and there is no patch

A two-stage exploit turns a VoLTE video call into full Android kernel access on phones with Unisoc modems. No patch exists; only the chipset maker can fix it.

Explainers

Public DNS servers with filtering: a verified list of what each IP really blocks

Public DNS servers with filtering, verified against official docs: what the Cloudflare, Quad9, AdGuard, CleanBrowsing, ControlD, Mullvad and OpenDNS IPs block.

Explainers

How to Use the Wazuh API: Authenticate, Query Agents, and Automate

How to use the Wazuh API: authenticate on port 55000 for a JWT token, then query your agents and automate with copy-pasteable curl commands and a worked

Explainers

How to Use Wazuh: A Practitioner's Guide to Agents, the Dashboard, and Detection

How to use Wazuh: install the server, enroll an agent, reach the dashboard, and write and test a detection rule with wazuh-logtest.

Explainers

What is MITRE ATT&CK? Tactics, techniques, and how defenders actually use it

A plain-English guide to MITRE ATT&CK: what it is, how its tactics and techniques are organized, a real intrusion mapped step by step, and how defenders use it.

Explainers

What is a SIEM, in plain terms (and how it differs from a SOC and EDR)

What a SIEM is, what it actually does, and how it differs from a SOC, an EDR, and plain log management - explained by a team that runs one.

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