System

System Security: Checking ASLR

Sep 02, 2025 · 1 min · Security

Verify whether ASLR is enabled on a Linux host.

System Security: Sandboxing Basics

Sep 01, 2025 · 1 min · Security

Quick note on process sandboxing using seccomp filters (conceptual snippet).

PWN - TRX CTF 2025 - free the monsters (heap, exit_handler o.w.)

May 02, 2025 · 6 min · Security

TRX CTF 2025 - PWN - free the monsters (heap, exit_handler o.w.)

System Research: A Practical Tour of Concurrency, Isolation, and Observability

Sep 15, 2025 · 6 min · Research

This post is a practical deep dive into three pillars of modern systems work: concurrency, isolation, and observability. It’s intentionally long and structured to exercise the in‑browser summarizer. If you only have 30 seconds, skim the headings and code snippets; otherwise, enjoy the details.

System Research: Memory Layout

Sep 06, 2025 · 1 min · Research

Visualizing a simple arena allocator.

System Research: Scheduling Toy

Sep 05, 2025 · 1 min · Research

Round-robin toy scheduler pseudocode.