Stephen Nnamani Professional Blog
IT Governance | Network Security | Cybersecurity Risk Analyst
Cybersecurity professional with over eight years of experience implementing and validating IT infrastructure in production environments.
Strong background in networking, system baseline configuration, and runbook-driven operations — bringing an operations-focused perspective to risk, compliance, and control assurance. Bridging technical implementation with governance requirements, ensuring controls are both effectively designed and consistently executed.
This platform showcases hands-on lab environments, real-world security configurations, and applied risk mitigation strategies across enterprise and SOHO deployments.
The goal is simple: Secure Design. Build secure in alignment with policy. Operate Secure to minimize risk. Maintain auditable documentation. Continuously improve controls.
Featured Projects
Hands-on cybersecurity infrastructure and automation projects
Enterprise Security Monitoring Lab
ELK Stack deployment for NetFlow analysis with real-time threat detection dashboards and OPNsense firewall integration.
Home Network Defense Infrastructure
Comprehensive network security with Pi-hole DNS filtering, WireGuard VPN, and automated threat blocking.
Automated Network Forensics System
Continuous PCAP capture with automated analysis, archival, and Wireshark integration for incident response.
Skills & Technologies
Network Security
- • SIEM (ELK Stack, Splunk)
- • Network Traffic Analysis
- • Firewall Management (OPNsense)
- • VPN Technologies (WireGuard)
- • DNS Security (Pi-hole)
Penetration Testing
- • Kali Linux Tools
- • Metasploit Framework
- • Nmap, Wireshark
- • Vulnerability Assessment
- • OSINT Techniques
Tools & Platforms
- • Linux Administration
- • Bash Scripting
- • Git/GitHub
- • Docker Containers
- • AWS Cloud Security