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daniel@ploetzl: ~

daniel@ploetzl ~ $ whoami

Daniel Plötzl

Junior IT Security / Cybersecurity Analyst candidate

daniel@ploetzl ~ $ cat focus.txt

Linux systems • Log analysis • Authentication & access control

Defensive security fundamentals • System hardening

daniel@ploetzl ~ $ ls -l skills/

drwxr-xr-x security-analysis/ # authentication logs, SSH hardening, firewall rules

drwxr-xr-x linux-admin/ # Bash, system monitoring, user permissions

drwxr-xr-x log-patterns/ # pattern detection with standard Unix tools

drwxr-xr-x automation/ # shell scripting, Git, Docker

daniel@ploetzl ~ $ systemctl status motivation.service

● motivation.service - Career transition to cybersecurity

Loaded: loaded (/usr/lib/systemd/system/motivation.service; enabled; preset: enabled)

Active: active (running) since Tue 2024-04-02 09:42:00 CET; 1y 11mo ago

Docs: https://ploetzl.pro/about

Main PID: 42 (continuous-learning)

Status: "Learning system behaviour; analyzing logs; building security tooling"

daniel@ploetzl ~

8 CTF Challenges

3 Write-ups

1 Tool

3 Projects

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Portfolio Purpose

This website documents my transition into IT security through hands-on, systems-focused work. It serves as a technical logbook of learning progress, practical experimentation and security-oriented problem solving.

What you'll find here:
• Selected write-ups that demonstrate applied security analysis rather than theoretical summaries
• Small, purpose-built tools used to explore system behaviour, logs and authentication mechanisms

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Recent Write-ups

[2026-02-10]

DE-001: TryHackMe - Introduction to Detection Engineering

Detection types, lifecycle and frameworks (ADS, DML, ATT&CK) for building sustainable threat detection programs.

DetectionEngineering SIEM MITRE Frameworks TryHackMe

[2026-01-26]

LOG-001: TryHackMe - Intro to Logs

Foundational log analysis covering data sources, collection, formats and hands-on authentication log investigation.

LogAnalysis Fundamentals TryHackMe

[2026-01-19]

AUTH-001: Authentication Log Analysis Tool (soc-auth-triage)

Bash script for system authentication logs (/var/log/auth.log): extracts SSH auth events, highlights failed logins, patterns and possible compromises.

Linux Bash LogAnalysis Authentication SSH AccessControl

→ View all write-ups → About me → Contact

daniel@ploetzl: ~

daniel@ploetzl ~ $ date

daniel@ploetzl ~ $ exit

The system will reboot now!

Connection to 100.64.0.16 closed.