Stephen Nnamani Professional Blog
IT Governance | Network Security | Cybersecurity Risk Analyst
Cybersecurity-driven infrastructure engineer with 10+ years of experience architecting, deploying, and hardening enterprise IT environments. Skilled across data center operations, network topology design, virtualization, and cloud ecosystems. My work has progressively focused on implementing security controls, reducing attack surface, integrating continuous monitoring and telemetry, and driving compliance across complex infrastructure.
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