Date archives "March 2026"

How to Upgrade Wazuh on Ubuntu 24.04 and Fix a wazuh-manager Timeout During the Process

Upgrading Wazuh on Ubuntu 24.04 can look successful at first, only to stall at the final step when wazuh-manager fails to complete its post-install process. In this guide, I walk through a real upgrade from Wazuh 4.13.1 to 4.14.4, explain why the dashboard may still load while the API remains unavailable, and show how a simple systemd override can allow the manager to start cleanly and complete the upgrade.

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Docker SFTP Port Works on localhost but Times Out from Outside (Debian 12 + ferm + Linode NAT)

I hit a classic “it must be Docker” moment. This post documents what was actually happening and the minimal, correct fix. The setup Symptom, “Local open, remote timeout” On the server: Everything looked correct: Docker was listening on 0.0.0.0:22222, and localhost could connect. But from outside, connections to port 22222 timed out. First principle, don’t… Continue reading