This guide walks through fifteen practical steps to secure a CentOS 7 or 8 server, covering user management, SSH hardening, password policies, file permissions, logging, and kernel protections, each with clear commands and explanations to reduce attack surface.
This guide outlines a comprehensive set of security hardening measures for CentOS 7/8 servers, including creating non‑root users, disabling root SSH login, configuring password policies, tightening SSH settings, enabling logging, and applying kernel protections such as ASLR to reduce attack surface.
This guide walks through six practical Linux hardening steps—including disabling root password login, enforcing complex password rules with expiration, restricting sudo access, shutting down FTP, setting file ownership and permissions, and managing command history—to improve system security.
This guide explains how to set password expiration periods, minimum length, complexity requirements, and reuse restrictions on Linux systems by editing /etc/login.defs and PAM configuration files with concrete examples and recommended values.
This guide explains how to set password expiration periods, minimum length, and complexity requirements on Linux systems by editing /etc/login.defs and PAM configuration files, with example commands and recommended values.
This guide walks through practical MySQL 8.0 security hardening steps using SQL statements to enforce strong passwords, enable SSL, configure connection control, manage user authentication, set file permissions, and verify encryption of logs and tables.
This article explains OceanBase's MySQL‑compatible security features, covering the MAPI authentication process, user naming conventions, password complexity and expiration settings, and mechanisms for handling repeated login failures, with detailed comparisons to MySQL.
