ClickHouse Security Basics

Overview

Secure a ClickHouse deployment with SQL-based user management, network restrictions, TLS encryption, and query audit logging.

Prerequisites

• ClickHouse admin access
• CLICKHOUSE_DEFAULT_ACCESS_MANAGEMENT=1 for SQL-based user management
• For self-hosted: access to server config files

Instructions

Step 1: Create Restricted Users (SQL-Based RBAC)

-- Create a read-only analyst user