> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-mintlify-8a08bda2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Security and authentication

> Overview of security and authentication features in ClickHouse

This section covers access control, authentication, and network security in
ClickHouse.

<CardGroup cols={2}>
  <Card title="Users and roles" icon="user-shield" href="/concepts/features/security/access-rights">
    Manage access control using ClickHouse's RBAC model — users, roles, grants, and quotas.
  </Card>

  <Card title="Network ports" icon="network-wired" href="/concepts/features/security/network-ports">
    Reference of network ports used by ClickHouse and how to configure them.
  </Card>

  <Card title="TLS" icon="lock" href="/concepts/features/security/tls">
    Configure TLS for client and inter-node connections, including ACME-based certificate management.
  </Card>

  <Card title="External authenticators" icon="key" href="/concepts/features/security/external-authenticators">
    Authenticate users via SSL/X.509, LDAP, HTTP, and Kerberos.
  </Card>
</CardGroup>