Day 18 — Building a Linux Vulnerability Analyzer 🐧🔍

In most cybersecurity learning paths, people focus on tools first. But sometimes the better exercise is building your own. Today I spent time creating a Linux vulnerability analyzer, a command line tool designed to audit a system and surface common security weaknesses. The idea is simple: treat the Linux machine like a fortress and walk through it gate by gate. Which services are listening? Which configurations are unsafe? Which permissions look suspicious? A small script can turn those questions into a structured security check. This tool performs a set of system audits that are commonly part of basic security assessments. It collects system information, inspects open ports, reviews SSH configuration, checks firewall status, enumerates user accounts, and looks for risky file permissions such as world writable files or SUID binaries. It also inspects running services and identifies available package updates that might contain security patches. What made this project interesting was des