SMB Infrastructure
Practical infrastructure built for two small businesses under real-world constraints and near-zero budget: backups, monitoring, remote access, and security on repurposed hardware.
Read →Adrian // polar-node
Sysadmin · Infrastructure · Automation
Linux systems administration, monitoring, and infrastructure automation. I build, troubleshoot, and improve real systems, and document what I learn along the way.
What you’ll find here
Infrastructure
Linux · Proxmox · VMware · Networking · AWS
Hands-on projects
Homelab experiments, SMB infrastructure, HA clusters
Runbooks & problem solving
Zabbix · Ansible · Bacula · things I’ve broken, fixed, and learned from
Selected work
My Homelab
The inner workings of a homelab, the journey building it, and lessons learned.
Read →HA Apache Guacamole — Nginx + MariaDB Galera Cluster (IaC)
Infrastructure-as-Code deployment of a highly-available Apache Guacamole remote access gateway, load-balanced with Nginx and backed by a MariaDB Galera cluster.
Read →Latest investigations
17 Custom Zabbix checks every Linux Admin should have
A post about extending monitoring scope of Zabbix with custom parameters
Read →Necessity is the mother of invention
A second business, a mixed Windows/Linux environment, and a deliberate choice to leave the comfort zone: how CheckMK, Ansible, and an offsite immutable backup stack got built on spare hardware.
Read →Building the Homelab Server: Hardware Choices and Why
In this post I go through every decision regarding hardware choice, power consumption, and the overall build.
Read →No fluff. Just systems, problems, solutions and what I learned along the way.