# Notes by Sam
We will have 4 IPv4 addresses.
## Host
- Gets its own IPv4
- VMs communicate over a private network
- Proxmox management interface runs on port 8006
## VMs
### Control VM
- Gets its own IPv4
- Web UI to run Ansible against other VMs
- SSH jump host to SSH to other VMs (for increased security)
- Monitoring of other VMs
- [Healthchecks](https://github.com/healthchecks/healthchecks)
- Netdata/Prometheus+Grafana/similar?
### Production VM
- Gets its own IPv4
- Services on \*.data.coop with Docker
### Staging VM
- Gets its own IPv4
- Services on \*.staging.data.coop with Docker