Title: Expert DevOps Needed: Ultra-Fast Laravel Reverse Proxy Setup for 50k Concurrent Users (From Scratch) Description: I am looking for an elite Server Administrator / DevOps Engineer to completely wipe my current server infrastructure and build a highly secure, lightning-fast architecture from ZERO. My project is a high-traffic Laravel-based crypto/investment platform. There should be absolutely zero delay, no lag, and no loading issues. The setup MUST handle 50,000 active concurrent users smoothly. What I have: * Main Server: 64GB RAM Dedicated Server (Offshore/Bulletproof). * Frontend VPS: To be used as a Reverse Proxy to hide the Main Server IP. * Domain: Registered on Njalla (Cloudflare DNS). What You Need To Do (From Scratch): * Complete Wipeout: Delete the entire current OS/Setup on both the Main Server and VPS. Start fresh with a clean Ubuntu 22.04 installation. * Reverse Proxy Architecture: Configure the VPS (Nginx Stream/HAProxy) to mask the Main Server's IP. The Main Server must remain completely hidden from the public and only accept traffic from the VPS/Cloudflare. * CyberPanel Installation: Install and configure CyberPanel on the Main Server. It must be fully accessible (e.g., via a secure subdomain or hidden port) without breaking the proxy setup. * Multiple Laravel Installations: Set up hosting environments for: * Main Domain (domain.com) * Migrate Subdomain (migrate.domain.com) * VIP Subdomain (vip.domain.com) * Extreme Performance Tuning (50k Concurrent Users): * Tune OpenLiteSpeed (OLS) worker processes and connection limits. * Optimize MariaDB (max_connections, innodb_buffer_pool_size, etc.) for massive read/write operations without locking. * Install and configure Redis strictly for Laravel Sessions, Cache, and Queues to ensure zero database bottlenecks. * Optimize OS-level limits (File descriptors, ulimit, TCP stack tuning). * Zero-Lag Promise: Configure Cloudflare Page Rules (Cache Everything where applicable) and ensure TTFB is under 150ms. Button clicks and POST requests must be instant. Requirements from You: * You must have proven experience in handling massive traffic (50k+ concurrent). * Deep knowledge of OpenLiteSpeed, Nginx Proxies, CyberPanel, and Laravel backend architecture. * Please start your proposal with "I CAN HANDLE 50K USERS" so I know you read this.