Eldon Gabriel

Eldon Gabriel

System Administration & Infrastructure Operations

Building, Securing, and Troubleshooting Real-World Systems

Infrastructure Operations Portfolio

This portfolio demonstrates hands-on systems administration, infrastructure security, and operational troubleshooting in Windows and Linux environments. Projects focus on server hardening, monitoring deployment, backup and recovery operations, network security, and technical problem resolution using structured validation and root-cause analysis methods.

Each project follows a proof-of-work approach, where infrastructure concepts are tested through practical implementation, troubleshooting, documentation, and security validation aligned with industry frameworks and operational best practices.

Focused on operational reliability, infrastructure security, monitoring visibility, and structured troubleshooting across enterprise-style lab environments.

Available Infrastructure Services

Systems Administration

  • Windows Server admin
  • Linux administration
  • User & permissions
  • Service troubleshooting
  • System monitoring
  • Operational support

Infrastructure Hardening

  • GPO hardening
  • Linux security baselines
  • Least privilege access
  • Registry restrictions
  • RDP/SMB hardening
  • Firewall rules

Monitoring & Logging

  • SAR metrics
  • Event log analysis
  • Process monitoring
  • Log filtering (grep)
  • Resource tracking
  • Performance diagnostics

Network Defense

  • pfSense firewalling
  • Traffic control
  • VPN setup
  • DNS/routing checks
  • Segmentation
  • Network fixes

Backup & Recovery

  • Backup validation
  • Snapshots
  • Restores
  • DR planning
  • System recovery
  • Continuity support

Security Governance

  • NIST-aligned controls
  • Risk validation
  • Security mapping
  • Audits
  • Documentation
  • Incident support

Explore Technical Portfolio View Certifications

Professional Influence

George H. Ross
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
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.

Professional interaction with Stedman Graham
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.

Technical Reports Banner

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.