Systems Administration • Infrastructure Operations • Technical Documentation
Building, Securing, and Troubleshooting Real-World Systems
Hi, I’m Eldon, and welcome to my portfolio. My work covers macOS, Windows, and Linux infrastructure. The goal is to reduce downtime and operational risk. It also makes systems easier to manage, troubleshoot, and recover.
Each project follows a clear process. I plan, deploy, validate, troubleshoot, and document the work. This creates reliable and repeatable solutions. Reports, SOPs, guides, and lab demonstrations provide evidence of the work. Clear documentation helps teams maintain secure, reliable, and manageable IT environments.
Infrastructure & Security Capabilities
Systems Administration
- Windows Administration
- Linux Administration
- User & Permissions
- Service Troubleshooting
- System Monitoring
- Operational Support
Infrastructure Hardening
- Group Policy Hardening
- Linux Security Baselines
- Least Privilege Access
- Registry Restrictions
- RDP/SMB Hardening
- Firewall Configuration
Monitoring & Logging
- SAR Metrics
- Event Log Analysis
- Process Monitoring
- Log Analysis
- Resource Monitoring
- Performance Diagnostics
Network Defense
- pfSense Administration
- Firewall Management
- VPN Configuration
- DNS & Routing
- Network Segmentation
- Network Troubleshooting
Backup & Recovery
- Backup Validation
- Snapshots
- Restores
- Disaster Recovery Planning
- System Recovery
- Business Continuity Support
Cloud Infrastructure
- AWS Administration
- Microsoft 365 Administration
- GCP Compute Engine
- VM Migration
- Cloud Networking
- Cloud Troubleshooting
Virtualization Services
- VM Deployment
- VMware vSphere
- ESXi Administration
- Virtual Networking
- Snapshot Management
- Hypervisor Configuration
Security Governance
- NIST-Aligned Controls
- Risk Assessment
- Control Validation
- Security Documentation
- Technical Reporting
- Incident Support
Explore Technical Portfolio View Certifications
Professional Influence
George H. Ross
NBC’s ‘The Apprentice’ Judge & Mentor
Reinforced structured decision-making, operational discipline, and risk evaluation principles used when analyzing infrastructure issues, system reliability, and security controls.
Wahida Clark
4x NYT Bestselling Author
Strengthened professional communication and documentation skills used to translate technical findings, operational risks, and troubleshooting outcomes into clear, business-focused reports.
Stedman Graham
Author, Educator & Business Strategist
Participated in a professional virtual engagement focused on leadership, personal development, and strategic thinking skills. The discussion reinforced structured goal-setting, identity-based leadership principles, and disciplined professional growth frameworks.
A structured collection of infrastructure troubleshooting reports, hardening procedures, monitoring deployments, recovery operations, and security investigations demonstrating applied systems administration and infrastructure security practices in real-world environments.
REPORT – Windows Server Active Directory Deployment Framework – v1.0.1
Documentation of an enterprise Windows Server Active Directory deployment framework with domain services, workstation deployment, connectivity validation, and troubleshooting workflows built on Oracle VirtualBox.
REPORT – Ubuntu Server Administration Documentation Framework – v1.0.0
Documentation of the engineering and development of an enterprise-grade Standard Operating Procedure (SOP) framework for Ubuntu Server 24.04 LTS.
REPORT – AIDE Integrity Monitoring Remediation on Ubuntu Server 24.04 LTS – v1.0.0
Technical remediation of AIDE configuration errors causing memory exhaustion and scan instability on Ubuntu 24.04.
REPORT – SSH Systemd Service Stabilization and Socket Activation Recovery – v1.0.0
Technical implementation of diagnosing and stabilizing OpenSSH service failures caused by systemd configuration conflicts.
REPORT – SELinux Migration on Ubuntu Server 24.04 LTS – v1.0.0
A technical report on migrating from AppArmor to SELinux on Ubuntu Server 24.04 LTS to enhance system security.
REPORT – Linux Hardening Framework – v1.0.0
Phase 3 of a Linux security hardening framework showing how a structured design reduces risk and strengthens system baselines.
REPORT – Attack Surface Reduction and Service Hardening – v1.0.0
Technical implementation of attack surface. reduction by disabling and masking unnecessary system services on Ubuntu Server.
REPORT – Analyzing Legacy Network Services – v1.0.0
Technical implementation of a network service audit to demonstrate the risks of cleartext authentication protocols and network traffic interception.
REPORT – Network Service Auditing and Hardening – v1.0.0
Technical implementation of network service auditing and the disabling of insecure legacy protocols to reduce system attack surface.
REPORT – Securing Boot and Authentication Files – v1.0.0
Technical implementation of permission hardening across critical system directories, bootloader configuration files, and authentication databases on Ubuntu Server.