Linux (AlmaLinux / Debian / Ubuntu)
OS internals basics and beyond: service management (systemd/journalctl), users & permissions, networking (ip/ss), config files, hardening checklists. Comfortable scripting with Bash.
Bash scriptsConfig filesHome-lab
Web & Servers
Hands-on with Nginx/Apache setup and tuning, reverse proxy & TLS basics, log review and troubleshooting — primarily from operating my browser game (SS-Travi).
NginxApacheProd ops (SS-Travi)
PHP
Read and understand existing code, trace data flow between components, make targeted fixes and small additions. Strong grasp of the logic even when not writing from scratch.
Code readingBugfixesIntegration
Python
Comfortable reading and understanding Python code, adapting snippets, and using small utilities; less focus on building full apps from scratch.
UtilitiesCode reading
SQL & Databases
Regular work with MariaDB/phpMyAdmin for the game: schema changes, queries, basic performance tuning, backups and data hygiene.
MariaDBphpMyAdminProd data
Cloudflare (Edge & Security)
Practical configuration: DNS, caching, rules/page rules, basic WAF and rate-limiting for production web properties.
DNSWAF basicsCaching
Security Foundations
Log analysis, packet capture (tcpdump/Wireshark/tshark), scanning & enumeration (Nmap), MITRE ATT&CK mapping, Splunk basics. Applied in labs and home-lab exercises.
Wireshark/tsharkNmapMITRE
Web Fundamentals
Solid HTML/CSS knowledge from building and maintaining production sites and internal tools.
HTMLCSS
Business, Risk & Leadership
Claims-domain risk mindset, KPI ownership, system-wide view, and team leadership (20–25). Translate business impact into priorities and clear playbooks.
Risk managementKPI-drivenStakeholders