Knowledge base

Learn ModSecurity

Plain-language guides to the engine, rules, deployment choices, tuning, logs, and WAF operations.

Use these guides when you need the “why” behind an installation choice or want to operate a WAF without turning every alert into a research project.

What is ModSecurity?

A practical explanation of the ModSecurity engine, web-server connectors, rule sets, and what makes a complete WAF.

Compare the embedded ModSecurity 2 generation with standalone libmodsecurity 3 and choose by web server.