In memory-constrained environments, the Linux OOM Killer decides what lives and what gets killed. This guide shows how to protect critical processes like sshd and mysqld using oom_score_adj values, with a script that applies them reliably and securely. Make memory pressure predictable and survivable.

In 2012, I uncovered a state-aligned Twitter proxy tied to Venezuela’s ruling party. It mimicked Twitter, redirected traffic, and risked phishing user credentials. This post breaks down the OSINT methods I used to uncover it — and why threat intel teams still need to watch for subtle, state-run infrastructure.

A 2012 Linux kernel bug caused CPU lockups after 208.5 days of uptime due to an integer overflow in sched_clock(). Affecting RHEL 5 and 6, it exposed the risks of long uptimes, underscoring the importance of timely patching, uptime observability, and operational risk management in DevSecOps.