37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
---
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layout: "docs"
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page_title: "Connect - Proxies"
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sidebar_current: "docs-connect-proxies"
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description: |-
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A Connect-aware proxy enables unmodified applications to use Connect. This section details how to use either Envoy or Consul's built-in L4 proxy, and describes how you can plug in a proxy of your choice.
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---
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# Connect Proxies
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A Connect-aware proxy enables unmodified applications to use Connect. A
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per-service proxy sidecar transparently handles inbound and outbound service
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connections, automatically wrapping and verifying TLS connections. Consul
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includes its own built-in L4 proxy and has first class support for Envoy. You
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can chose other proxies to plug in as well. This section describes how to
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configure Envoy or the built-in proxy using Connect, and how to integrate the
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proxy of your choice.
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To ensure that services only meke allow external connections are established via
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the Connect protocol they should only accept connections on a loopback address.
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~> **Deprecation Note:** Managed Proxies are a deprecated method for deploying
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sidecar proxies, as of Consul 1.3. See [managed proxy
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deprecation](/docs/connect/proxies/managed-deprecated.html) for more
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information. If you are using managed proxies we strongly recommend that you
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switch service definitions for registering proxies.
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## Dynamic Upstreams Require Native Integration
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If an application requires dynamic dependencies that are only available
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at runtime, it must [natively integrate](/docs/connect/native.html)
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with Connect. After natively integrating, the HTTP API or
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[DNS interface](/docs/agent/dns.html#connect-capable-service-lookups)
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can be used.
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!> Connect proxies do not currently support dynamic upstreams.
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