Linux Server Security Audit: A Practical Toolkit for Sysadmins

A practical guide to conducting a comprehensive security audit of Linux servers, aimed at system administrators. The article contains a list of critical checks to strengthen the infrastructure, including access rights control, network port auditing, firewall configuration, and analysis of vulnerabilities in system services. The main focus is on using open-source tools (Lynis, Lynis Enterprise, Lynis-audit, and standard Bash utilities) to automate routine checks and build a reliable security monitoring system.