Feb 12 · 5 min read · Crocodile is a beginner-friendly Linux room that focuses on fundamental enumeration techniques, including Nmap scanning, anonymous FTP access, and directory brute forcing. In this walkthrough, we will take a structured approach to identifying exposed...
Join discussionJan 20 · 13 min read · What is cURL? cURL stands for "Client URL." It is a free tool that lets you send and receive data from the internet using your computer's command line. It was created by a human named Daniel Stenberg in 1997. Yes, literally there were no Claude, Chat...
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Dec 6, 2025 · 9 min read · As part of our SOC‑mas journey, today’s challenge brings us deep into the fundamentals of network service discovery. While TBFC’s QA environment has been compromised, this task is the perfect opportunity to sharpen our skills with real‑world techniqu...
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Dec 5, 2025 · 7 min read · 들어가며 프로젝트에서 FTP를 통해 파일을 전송하는 클라이언트를 개발했을 때 이야기입니다. 프로토콜에 대한 이해 없이 개발을 진행하다 보니 불필요하게 시간을 소모한 경험이 있어서 RFC 원문을 읽어보게 되었습니다. 읽게 된 계기 당시 FTP 프로토콜에 대한 이해가 부족한 상태로 개발을 시작했습니다. '제어를 위한 포트와 데이터 전송을 위한 포트가 분리되어 있다' 정도만 알고 있었고 Active 모드와 Passive 모드의 차이를 제대로 이해...
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Dec 1, 2025 · 2 min read · I quit smoking 100+ hours ago. Instead of lighting a cigarette, I shipped my first public PyPI package:extract-load-s3 – a lightweight utility to move files from FTP→ S3 with multipart upload and validation.It can handle very big files smoothly PyPI ...
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Aug 11, 2025 · 16 min read · When working with networks, there are times when you need to move files between devices. This is where file transfer protocols come in. Two common ones you might encounter are FTP and TFTP. Both are used to send and receive files, but they work in di...
Join discussionJul 25, 2025 · 4 min read · This guide walks you through deploying a Yii2 Framework app to InfinityFree using GitHub Actions and FTP. You'll prepare the project locally, configure GitHub secrets, and deploy automatically through push or manual trigger. Prerequisites Yii2 Basi...
Join discussionJul 20, 2025 · 4 min read · Welcome to Spice Hut, a quirky startup that sells spices and sandwiches—but more importantly, has questionable security practices. As part of a penetration testing engagement, our goal was to assess their infrastructure and attempt full system compro...
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Jul 20, 2025 · 6 min read · DNS: Remembering Addresses The Domain Name System (DNS) connects domain names (like example.com) to IP addresses, so users don't have to remember numbers. Layer: In the OSI model, DNS operates at Layer 7 (Application Layer). Ports: UDP port 53 is use...
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