Monitor OPNsense with Zabbix (Active Agent, GUI-only)
TL;DR Install the OPNsense Zabbix Agent plugin → enable it → set Hostname to exactly your Zabbix host name → […]
OPNsense, Zabbix
Zabbix
Convert “FreeBSD by Zabbix agent” to Active (Zabbix 7.4)
TL;DR Clone FreeBSD by Zabbix agent → mass-update all Zabbix agent items to Zabbix agent (active) → switch agent-based discovery
Ceph
Ceph RGW multisite UI: A Geo-Distributed File Browser for Your Object Storage
TL;DR: A file-browser style UI for Ceph RGW multisite that lets you browse, preview, and fetch objects across zones as
BIND, OPNsense
Custom DDNS for Your Home Lab with OPNsense BIND (Python + cron)
TL;DR: This guide shows a small Python script that discovers your public IPv4, updates an A record in the OPNsense
OPNsense
Using the OPNsense API with Python
The OPNsense firewall exposes a REST API for automation and integration. This post shows how to use the API from
Zabbix
Zabbix Agent Active vs Passive: What They Mean and When to Use Each
TL;DR How Active Works How Passive Works Quick Comparison Aspect Active Passive Connection Agent → Server :10051 Server → Agent
Ceph, KVM
Create a KVM VM on Ceph RBD
This follow-up shows the cleanest, minimal path to put a Libvirt/QEMU VM disk on Ceph RBD and create the VM
KVM
Ubuntu 24.04: Full Cold Backup of KVM/Libvirt with rsync
TL;DR — Power off all VMs → (optionally) stop or mask libvirt sockets so nothing auto-starts → rsync both /etc/libvirt
Smallstep
Sign IoT Device Certificates with Step CA
This post sets up a separate workstation to sign IoT device (client) certificates and return a single leaf PEM per
Ccache
Build ccache 4.11.3 from Source on Ubuntu 24.04
Goal: Compile and install ccache v4.11.3 from source on Ubuntu 24.04, with manpages. Includes expected install output, sanity checks, and