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Christopher Ferrari

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November 20, 2025How we reverse-engineered a dead 2002-era bell controller and built a modern replacement using a Raspberry Pi, Python, and React.
Raspberry Pi
Python
Linux
June 5, 2025I made a cool website where you can announce whatever you want! I read about input sanitization, so now I remove any kind of characters that could be a problem :)
picoCTF
CTF
Web Security
Python
June 4, 2025Using API documentation to find a heap dump endpoint and extract a flag from server memory.
picoCTF
CTF
Web Security
June 3, 2025Exploiting Server-Side Template Injection in a picoCTF challenge. Details on how Jinja2 templating was used for code execution.
picoCTF
CTF
Web Security
Python
May 30, 2025Analyzing a Cmail phishing site on S3, retrieving victim list.
TryHackMe
CTF
AWS
Security
May 28, 2025Setting up real-time server monitoring for SSH logins and Fail2ban bans using Discord webhooks and simple shell scripts.
Linux
Security
Shell
Automation
Web Server
May 16, 2025A detailed look at my web server security stack, including log analysis, intrusion prevention with fail2ban, firewall configuration, and SSH hardening.
Security
Linux
Web Server
May 11, 2025This is the full stack I use to run my personal website, detailing hosting, deployment, and frontend choices.
Web Development
DevOps
Linux
Next.js
    Blog | Christopher Ferrari