This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::AppMesh::VirtualNode ListenerTls
<a name="aws-properties-appmesh-virtualnode-listenertls"></a>

An object that represents the Transport Layer Security (TLS) properties for a listener.

## Syntax
<a name="aws-properties-appmesh-virtualnode-listenertls-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-appmesh-virtualnode-listenertls-syntax.json"></a>

```
{
  "[Certificate](#cfn-appmesh-virtualnode-listenertls-certificate)" : ListenerTlsCertificate,
  "[Mode](#cfn-appmesh-virtualnode-listenertls-mode)" : String,
  "[Validation](#cfn-appmesh-virtualnode-listenertls-validation)" : ListenerTlsValidationContext
}
```

### YAML
<a name="aws-properties-appmesh-virtualnode-listenertls-syntax.yaml"></a>

```
  [Certificate](#cfn-appmesh-virtualnode-listenertls-certificate): 
    ListenerTlsCertificate
  [Mode](#cfn-appmesh-virtualnode-listenertls-mode): String
  [Validation](#cfn-appmesh-virtualnode-listenertls-validation): 
    ListenerTlsValidationContext
```

## Properties
<a name="aws-properties-appmesh-virtualnode-listenertls-properties"></a>

`Certificate`  <a name="cfn-appmesh-virtualnode-listenertls-certificate"></a>
A reference to an object that represents a listener's Transport Layer Security (TLS) certificate.  
*Required*: Yes  
*Type*: [ListenerTlsCertificate](aws-properties-appmesh-virtualnode-listenertlscertificate.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Mode`  <a name="cfn-appmesh-virtualnode-listenertls-mode"></a>
Specify one of the following modes.  
+ ****STRICT – Listener only accepts connections with TLS enabled. 
+ ****PERMISSIVE – Listener accepts connections with or without TLS enabled.
+ ****DISABLED – Listener only accepts connections without TLS. 
*Required*: Yes  
*Type*: String  
*Allowed values*: `STRICT | PERMISSIVE | DISABLED`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Validation`  <a name="cfn-appmesh-virtualnode-listenertls-validation"></a>
A reference to an object that represents a listener's Transport Layer Security (TLS) validation context.  
*Required*: No  
*Type*: [ListenerTlsValidationContext](aws-properties-appmesh-virtualnode-listenertlsvalidationcontext.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)