Homelab Pentest Notes
A sequence of labs focusing on AD exploitation and network pivoting.
- AD abuse & enumeration
- Kerberos attack simulations
- Automated reconnaissance scripts
Building Secure Infrastructure & Practical Security Solutions
I'm Sean Valis — a cybersecurity-focused technologist experienced with Linux systems, networking, penetration testing, automation, and security operations. This portfolio surfaces projects and labs demonstrating real-world problem solving.
ABOUT ME
Technical Background
I focus on cybersecurity, systems administration, networking, and offensive security. Interests include Linux environments, infrastructure hardening, Active Directory security, cloud systems, scripting, and practical security testing.
I enjoy building homelab environments, automating workflows, researching attack chains, and developing hands-on technical projects that improve operational security and infrastructure reliability.
CORE SKILLS
Technologies & Tools
Cybersecurity
Penetration Testing · SIEM · Active Directory · Threat Analysis · Vulnerability Assessments
Systems
Linux Admin · Automation (Bash/Python) · Containerization · Monitoring
Networking
Routing · Switching · VPNs · Firewall Hardening
PROJECTS
Selected Work & Labs
Automated Hardening Scripts
Shell and Ansible playbooks for fast hardening of Linux hosts.
CERTIFICATIONS
Selected Certifications
CompTIA Security+
Practical foundational security knowledge.
CompTIA PenTest+
Offensive security and penetration testing skillset.
CONTACT
Get in touch
Email: sean-valis@at-lan-tech.com
GitHub: github.com/Sean-Valis