Eldon Gabriel

Eldon Gabriel

System Administration & Infrastructure Operations

Secure Windows & Linux infrastructure through administration, troubleshooting, and monitoring.

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 administration
  • Linux system administration
  • User and permission management
  • System troubleshooting
  • Service management
  • Operational maintenance

Infrastructure Hardening

  • Windows Server hardening
  • Linux security baselines
  • Least privilege enforcement
  • Registry and access control configuration
  • RDP and SMB security controls
  • Firewall rule implementation

Monitoring & Logging

  • Wazuh deployment and monitoring
  • Centralized logging
  • Sysmon integration
  • Security event analysis
  • File integrity monitoring
  • Resource monitoring

Network Defense

  • pfSense firewall configuration
  • Firewall rule troubleshooting
  • IPsec VPN troubleshooting
  • DNS traffic analysis
  • Access control validation
  • Network misconfiguration remediation

Backup & Recovery Operations

  • Backup validation testing
  • Recovery workflow development
  • System state backup configuration
  • Snapshot and restore operations
  • Disaster recovery planning
  • Business continuity support

Security Governance

  • NIST aligned controls
  • Risk-based security validation
  • Technical safeguard implementation
  • Operational security reviews
  • Audit readiness support
  • Incident remediation documentation

Explore Technical Portfolio View Certifications

Tools & Platforms

Windows Server
Active Directory
Group Policy (GPO)
Linux (Ubuntu/Kali)
Wazuh
Lynis
pfSense
OpenVPN
Docker
Proxmox VE
VMware
Cockpit
Webmin
Veeam Backup
Duplicati
MS Security Toolkit
OpenVAS
ClamAV
Python
Have I Been Pwned

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.