A security-first server infrastructure design using virtual machine isolation, container orchestration, automated backup routines, and encrypted administrative access.
Modern server environments require isolation between public-facing web applications and backend databases. This project established a hypervisor-based infrastructure running isolated Linux containers protected by strict firewall rules.
The client's single bare-metal server ran web servers, databases, and internal management tools together without process isolation, creating severe security vulnerabilities and single-point-of-failure risks.
Migrated infrastructure to a Proxmox VE hypervisor. Separated workloads into lightweight LXC containers and Docker instances behind an Nginx reverse proxy providing SSL termination and Web Application Firewall (WAF) filtering.
Proxmox VE hypervisor hosts isolated LXC containers and Docker microservices. Ingress traffic passes through Nginx SSL proxy, while admin traffic requires WireGuard VPN authentication.
Proxmox VE cluster with ZFS mirrored storage pools and automated snapshot scheduling.
OPNsense firewall with strict NAT port forwarding rules and intrusion prevention (IPS).
Isolated Docker containers running internal apps behind Nginx Proxy Manager.
Dedicated PostgreSQL database container restricted strictly to internal VLAN subnet access.
Installed and tuned Proxmox VE with ZFS pool RAID-1 mirroring for storage redundancy.
Configured virtual bridge interfaces (vmbr0, vmbr1) mapping to isolated VLAN tags.
Deployed Docker host VM with automated container health checks and compose file management.
Configured Nginx Reverse Proxy with Let's Encrypt automated TLS certificate renewal.
Enforced WireGuard VPN access for all hypervisor web consoles and SSH management interfaces.
Setup automated offsite backup routines to encrypted S3-compatible cloud storage.
Public web crawlers and malicious bots attempting brute-force attacks on management ports.
Removed management interfaces from public routing and enforced WireGuard VPN key authentication.
Database performance degradation during concurrent web requests.
Allocated dedicated CPU cores and optimized PostgreSQL shared buffers within LXC container configuration.
Designing and managing a scalable multi-site campus network infrastructure with VLAN segmentation, routing, and high availability.
Building a centralized monitoring and logging platform using Prometheus, Grafana, LibreNMS, and SNMP for real-time visibility.
If you need assistance designing or auditing your network, hypervisor, or monitoring platform, let's talk.
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