Network security engineer. Self-taught. No fixed path.
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Radwan Alrashdi · Oman
Network security engineer with an offensive lean. I move between offense, defense and infrastructure — more of a DevOps guy, in a twisted way.
Whatever's in front of me gets built, fixed, or broken until it works.
浪人·rōnin — the masterless one
必殺·hissatsu — bringing certain death; a deadly, fatal blow
02/Section — Arsenal & Disciplines
Combat-ready tooling, offensive disciplines, and hard foundation. Curated to what I actually wield in the wild — zero fluff.
Target inspection & web pentesting
Exploitation & payload delivery
Network surface & port auditing
Domain enumeration & priv-esc
Deep packet & traffic inspection
Custom tooling & exploit scripts
Targeted reconnaissance, web application exploitation, and enterprise privilege escalation.
OWASP Top 10 · SQLi · IDOR · Auth bypass
Kerberoasting · BloodHound paths · Priv-esc
Vulnerability validation · Metasploit · Lateral move
Nmap · Subdomain discovery · Service profiling
Deep protocol mechanics, Linux internals, and custom security automation.
Wireshark · TCP/IP · DNS · HTTP/S wire level
Python & Bash custom exploit / audit scripts
Kali Linux · Windows Server · Identity infra
Exposure triage · IOC analysis · Defensive posture
Hands-on practical examinations and formal cybersecurity degree.
Junior Penetration Tester · INE Security
INE Certified Cloud Associate · INE Security
Cisco Networking Academy
University of Technology and Applied Sciences
03/Section — The Path
No fixed master, no fixed lane. Each stop added a discipline; none of them narrowed me.
Got students building things instead of only studying them — events, workshops, momentum.
Helpdesk, hardware, Windows reinstalls — including the ones I caused myself. Everything breaking was the real curriculum.
Offensive security as a job, not a hobby — breaking things with permission and paperwork.
Independent penetration testing, security assessments, and infrastructure hardening for clients. Operating solo in the wild — uncovering security blindspots and locking down systems without corporate red tape.
04/Section — The BOYS CAVE
My homelab — built and run for me and the boys. Privacy by default, independence from big tech, and a place to break things on my own terms. Below is the map of the real architecture; hover anything.
the outside
OPNsense
firewall · old machine
The second, older machine — reborn as the firewall. Everything answers to it first.
THE CORE
the server
The server. The cave everything else lives in — storage, compute, and 19 reasons to keep patching. What it actually runs is between me and it.
Wazuh SIEM
watching
Wazuh in a VM, watching the whole stack. Quiet. Taking notes.
nginx-proxy-manager
switchboard
The switchboard — internal traffic routes through here before it reaches anything.
inside the cave
MEDIA & STREAMING×2
GAME WORLDS×3
THE FETCHERS×3
STORAGE & DOCS×2
THE FORGE×2
GATES & GUARD×4
VAULT & CONTROL×2
A hand-authored map of the real architecture — static data, no live status, nothing on this page talks to the cave.
05/Section — Field Record
The work that proves the adjectives — what it is, my role in it, what it's built with, and the part that's genuinely impressive. No leadership theater; I'm consistently the hands-on builder.
A free-tool SOC lab at my university, built so students learn real SOC work — live traffic, real alerts, zero license keys.
Sole builder and operator — hardware, isolated network, tooling, and an environment that fights back.
Students get blue-team reps on something real — not slides.
My own diagram-automation tool for the server. The animated map in The BOYS CAVE is exactly the kind of artifact it keeps honest — infrastructure gets checked against the diagram, not memory.
Designer and builder. Actively being improved, never finished.
I built the tool instead of maintaining the drawing by hand.
A student CTF competition, co-founded from nothing and run on gzCTF infrastructure. I keep the platform and the operations behind it running.
Co-founder, platform operator, workshop runner.
15+ workshops delivered. 300+ students brought through the gates.
brief mentions
Game modding and RE work — making software do what it wasn't meant to.
06/Section — Trophies
The record, kept clean. Entered some, hosted one — the numbers do the talking.
21 of 49 challenges solved — web, binary exploitation, cryptography, forensics.
UTAS national final round.
Community Day Quiz.
The competition itself — full story in Field Record.
07/Section — Off Duty
The rest of the desk.
…plus a standing weakness for indie games.
“I regret nothing. I merely acknowledge what we lost.”
08/Section — Dispatches
Writeups — CTF solutions, teardown notes, lab mishaps worth sharing. Every dispatch opens in its own window; read it without losing your place.
09/Section — Contact
If this is interesting to you, here's where to find me. No forms, no funnels.
signed
必殺 — hissatsu — bringing certain death; the decisive blow. Every dispatch carries it.