How many concurrent VPN users can one bulletproof VPS handle?

WireGuard: 500-2,000 concurrent users on 4 vCPU, 4GB RAM VPS, limited primarily by bandwidth rather than CPU. OpenVPN: 100-500 concurrent users on similar hardware (more CPU-intensive than WireGuard). For a commercial VPN service, plan for 10-20% of registered users being concurrent at peak.

What is the legal risk of running a VPN service from Romania?

Operating a VPN service from Romania is legal. VPN services are legal businesses. Romanian law does not prohibit VPN operation. Note that VPN services serving EU users must comply with GDPR privacy requirements regardless of server location.

Bulletproof Use Cases

Bulletproof VPS for VPN Service Providers: Business Infrastructure Guide

Starting a VPN service requires infrastructure that supports multiple exit nodes, no-log architecture, and resistance to law enforcement pressure to hand over user data. Bulletproof VPS in Romania and Iceland provides the foundation for a privacy-first VPN service.

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VPN Service Infrastructure Components

Components of a commercial VPN service:

VPN exit nodes: VPS instances in each server location you offer. Each exit node runs WireGuard and/or OpenVPN. Minimum 2 vCPU, 4GB RAM, 1 Gbps port per node. Romania exit nodes: $19.99/mo. Iceland nodes: $19.90/mo. Multiple geographic locations require multiple VPS subscriptions.

Backend API: User account management, subscription billing, server list distribution. Hosted on a bulletproof VPS separate from exit nodes. Any programming stack: Django, Node.js, Laravel.

Payment processing: Stripe for standard billing; cryptocurrency for privacy-focused users. Consider accepting Monero for anonymous VPN subscriptions.

No-log verification: Architecture that genuinely doesn't log: disable system logs on VPN exit nodes (or rotate within 24 hours), don't log VPN connection metadata, use shared IP addresses where thousands of users share one IP to prevent traffic correlation.

WireGuard VPN Server Setup

WireGuard setup on Ubuntu 22.04 VPS:

Install WireGuard: apt install wireguard
Generate server keys: wg genkey | tee /etc/wireguard/private.key | wg pubkey > /etc/wireguard/public.key
Configure /etc/wireguard/wg0.conf with interface and peer sections
Enable IP forwarding: echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
Start WireGuard: systemctl enable --now wg-quick@wg0

For commercial VPN, automate peer (client) configuration generation via API. Each user gets a unique WireGuard keypair. Server stores public key list; no other data required for connection.

Multi-Hop VPN Architecture

Multi-hop (double VPN) architecture for premium privacy:

User connects to Entry Node 1 (Iceland)
Entry node encrypts traffic and forwards to Exit Node 2 (Romania)
Exit node connects to destination on behalf of user
Neither node alone knows both user identity and destination

This architecture is technically complex but is a strong privacy differentiator for premium VPN positioning. Requires coordination between entry and exit nodes. OpenVPN supports chaining via separate tunnel interfaces.

Privacy & anti-censorship guides

Tor in Russia 2026 Tor obfs4 Bridges Guide

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