open-consul/website/source/docs/enterprise/sentinel/index.html.markdown.erb

---
layout: "docs"
page_title: "Sentinel in Consul"
sidebar_current: "docs-enterprise-sentinel"
description: |-
  Consul Enterprise uses Sentinel to augment the built-in ACL system to provide advanced policy enforcement. Sentinel policies can currently execute on KV modify and service registration.
---

# Sentinel in Consul
Sentinel policies extend the ACL system in Consul beyond static "read", "write",
and "deny" policies to support full conditional logic and integration with
external systems. [Learn more about Sentinel here.](https://docs.hashicorp.com/sentinel/concepts/).

To get started with Sentinel in Consul,
[read the general documentation](https://docs.hashicorp.com/sentinel/app/consul/) or
[Consul documentation](/docs/agent/sentinel.html).