> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-postgresql-tls-support.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Security and authentication

> Landing page for Security and authentication

<CardGroup cols={2}>
  <Card title="Users and Roles" icon="users" href="/concepts/features/security/access-rights">
    Learn more about how ClickHouse supports access control management based on RBAC approach.
  </Card>

  <Card title="Network ports" icon="ethernet" href="/concepts/features/security/network-ports">
    Reference for network ports used by ClickHouse.
  </Card>

  <Card title="TLS" icon="lock" href="/concepts/features/security/tls/index">
    Configure TLS for secure connections to ClickHouse.
  </Card>

  <Card title="External Authenticators" icon="id-badge" href="/concepts/features/security/external-authenticators/index">
    Learn more about how OSS ClickHouse supports authenticating and managing users using external services.
  </Card>
</CardGroup>