SYSTEM ONLINE

Keith Miller

> _

Danville, Illinois

Get in Touch Download Resume

I keep servers running, problems solved, and users happy — and I've been doing it for over 15 years.

Currently an L2 System Engineer at GreenGeeks, where I handle everything from cPanel migrations and PHP stack debugging to DDoS response and security hardening. I'm the person people escalate to when things get complicated.

It all started in 2003 when I built a gaming community from scratch — 160,000 members, 8 game servers, 13 staff. Managing infrastructure under that kind of pressure at 16 years old taught me more about sysadmin work than any classroom could. That foundation carried me from L1 support at PacificHost to where I am now: 14+ years deep in the web hosting industry and still just as obsessed with the craft.

0+ Years Experience

0K+ Community Members

0 Game Servers Hosted

Web Hosting & Panels

cPanel / WHM Administration
Account Setup & Backups
WordPress Toolkit
Softaculous Installs
WHMCS Billing & Support

Linux Administration

CentOS / CloudLinux / Debian
Package Management
Service & User Management
Log & Disk Analysis via SSH

Web & App Services

Apache / NGINX / LiteSpeed
PHP Handler & Config
MySQL / MariaDB Diagnostics
WordPress / Joomla / Magento

DNS, Email & Certificates

DNS (A, CNAME, MX, TXT)
SSL Installs & Renewals
Cloudflare DNS / CDN / WAF
SPF, DKIM, DMARC Alignment

Windows & Security

Windows 10/11 & Server
Active Directory / RDP / GPO
PowerShell & Firewall Analysis
CSF / ModSecurity Tuning
Malware Response

Performance & Monitoring

Resource Spike Diagnosis
DDoS Symptom Detection
cPanel Metrics & 360 Monitoring
UptimeRobot & Service Logs

Virtualization

KVM / OpenVZ / SolusVM
VMware / Proxmox
VPS Provisioning & Recovery
Host-Level Monitoring

Remote Support

SSH / RDP / VNC / TeamViewer
WHMCS / Kayako / Zendesk
Live Chat, Phone & Ticketing
Customer Education

Backup & Recovery

cPanel / JetBackup Systems
Archive Restores via SSH
Full & Partial DB Recovery
Site Recovery Operations

Tools & Utilities

WP-CLI / Git / Composer
rsync / curl / wget / nmap
grep / awk / htop / strace
MySQL CLI / dig / traceroute

Automation & Scripting

Shell Scripts & Cron Jobs
Log & Audit Automation
Permission & Backup Scripts
WP-CLI Automation

Incident Response

PHP Error Investigation
Disk Quota & Malware Triage
Root Cause Documentation
LiteSpeed / Cloudflare Tuning

July 2011 — Present

L2 System Engineer

GreenGeeks LLC — Wilmington, DE

Deliver front-line and escalated technical support for shared and reseller Linux hosting environments, including cPanel/WHM, DNS management, email delivery, and web application performance
Conduct server migrations, troubleshoot PHP/MySQL issues, and configure popular CMS platforms (WordPress, Joomla, Magento)
Perform proactive server monitoring for DDoS, malware, and abuse cases, deploying tools like Imunify360, CSF, and ModSecurity
Interface with customers through ticketing, phone, and live chat; de-escalate concerns and maintain high satisfaction in high-volume environments
Support internal infrastructure and assist team members with resolving complex escalations, including SSL errors, firewall issues, and web stack failures

March 2023 — March 2024

Retail Technical Specialist

Simplified Computers — Champaign, IL

Assisted customers with technical questions, device check-ins, and basic PC diagnostics and repairs
Improved store flow by documenting tickets, organizing repair queues, and streamlining intake processes
Provided friendly, educational customer interactions, helping demystify technology for end users

January 2020 — June 2021

Cashier

Meijer — Danville, IL

Delivered courteous and efficient checkout experiences for hundreds of customers weekly
Managed register operations including returns, exchanges, and end-of-shift balancing
Promoted loyalty programs and assisted with store-wide teamwork during high-traffic hours

August 2010 — June 2011

Technical Support Representative

PacificHost LLC — Orange, CA

Provided L1 tech support for shared hosting customers via ticket and live chat
Handled billing and basic VPS support requests, escalating advanced issues appropriately
Built familiarity with Linux-based hosting tools and customer education techniques

January 2003 — November 2008

Lead Game Server Administrator

LegacyGamers

Managed a gaming and hosting community of 160K+ users, overseeing 13 staff and multiple game servers
Provided technical, moderation, and community engagement support through online platforms
Led initiatives to improve server uptime, documentation, and user experience

Danville Area Community College

Danville, IL

Diploma in General Education

January 2010

LegacyGamers Network

Gaming Community Hub

The central hub for LegacyGamers — built from scratch with PHP and MySQL. Handles cross-domain SSO authentication, user registration, and admin tools across the entire network. Custom industrial futurism design with silver/chrome branding.

PHP MySQL SSO Auth Cloudflare cPanel

LegacyGamers RO

Ragnarok Online Private Server

A heavily customized Ragnarok Online private server built on rAthena. Custom C++ DLL injection, dynamic weather system, anti-cheat engine, interactive world map, and reverse-engineered client patches — all tied together with a dark fantasy website and admin panel.

C / C++ Python Reverse Engineering PHP MySQL

LegacyGamers International Gaming Community

The Original Community (2003–2008)

Where it all began. Built and ran a multi-game private server community from age 16. Started with 4ExRO — a Ragnarok Online server pulling 500-1,000+ daily players — then launched LegacyGamers GunZ, which became the flagship: 160K+ registered members, 1,000-2,000 concurrent daily players, and a 13-person staff team. Also hosted World of Warcraft, Lineage II, MapleStory, and more.

160K+ Members

2,000+ Daily Players

8 Game Servers

Ragnarok Online GunZ WoW Lineage II Community Ops

iGunZ

GunZ: The Duel Revival

Revived the classic GunZ: The Duel with modern server infrastructure, custom gameplay modifications, and a dedicated competitive community. Built on years of reverse engineering and game server expertise.

C++ Game Servers Reverse Engineering Community

Whether it's a job opportunity, a collaboration, or just a conversation about tech — I'd love to hear from you.

Email LinkedIn Twitter / X Facebook Discord