Service areas

Designing and running server foundations: Proxmox VE, ZFS,

Debian/Ubuntu, Windows Server, VMware, LXC and Docker

containers. High availability, cross-node replication,

UPS-driven shutdown orchestration, device passthrough for

specialised workloads.

pfSense firewall with intrusion detection, VLAN segmentation,

site-to-site and roaming VPN, MikroTik CAPsMAN centralised WiFi,

managed switching and routing. Centralised logging and traffic

monitoring.

Asterisk, FreePBX and 3CX: chan_sip to PJSIP migrations, SIP

trunk hookup to Swiss carriers, dial plans, call queues,

time-based routing, call recording and statistics.

Proxmox Backup Server, ZFS replication, encrypted offsite copy,

append-only design resistant to ransomware. Equally at home in

Veeam, Commvault, TSM, Nakivo and NetBackup environments.

And above all: tested restores, not just scheduled ones.

Metrics, useful alerts (the kind that don't cry wolf),

dashboards, written procedures and runbooks — SCOM, Prometheus,

Zabbix or LibreNMS depending on the stack. The goal is that

an outage can be handled without me if I am unreachable.

1. We look at what's there together. No jargon, no surprise quotes.

2. I propose a target and a path to get there, in stages.

3. We deploy outside production hours when it matters.

4. You receive the documentation. It's yours.

5. Follow-up on retainer or per intervention, your choice.