Cybersecurity & technology notes — learning in public
Technical notes, CTF write-ups, lab reports and research on cybersecurity, networking, Linux and programming.
A practical, beginner-friendly intro to writing small security tools in Python — a concurrent port scanner and a dictionary hash cracker, with ethics baked in.
Study notes on the TCP/IP model — the four layers, the three-way handshake, TCP states, and a practical look at reading a packet capture with tcpdump and tshark.
A learning-in-public write-up of the methodology I used on my first TryHackMe beginner Linux room — recon, enumeration, and the mindset that finally clicked.
A grounded tour of rwx, octal notation, chmod, chown, umask, and the special bits — explained the way I wish someone had explained them to me.
A grounded walkthrough of how DNS actually resolves, the records that matter, and the security boundaries every defender should understand.