MaGe Linux Operations

Mar 31, 2017 · Information Security

How to Harden CentOS 6.7: A Complete Account and System Security Guide

This article walks through a step‑by‑step hardening of a CentOS 6.7 host, covering password lockout policies, password aging and complexity, removal of unused accounts, file‑system permissions, log protection, SSH restrictions, NFS limits, and network‑level safeguards to achieve a compliance score of 90 points.