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Copy file name to clipboardexpand all lines: articles/application-gateway/application-gateway-backend-ssl.md
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ms.topic: hero-article
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ms.tgt_pltfrm: na
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ms.workload: infrastructure-services
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ms.date: 11/10/2016
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ms.date: 12/12/2016
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ms.author: amsriva
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---
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# Enabling SSL Policy and end to end SSL on Application Gateway
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## Overview
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Application gateway supports SSL termination at the gateway, after which traffic typically flows unencrypted to the backend servers. This allows web servers to be unburdened from costly encryption/decryption overhead. However for some customers unencrypted communication to the backend servers is not an acceptable option. This could be due to security/compliance requirements or the application may only accept secure connection. For such applications, application gateway now supports end to end SSL encryption.
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## Overview
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End to end SSL allows you to securely transmit sensitive data to the backend encrypted still taking advantage of the benefits of Layer 7 load balancing features which application gateway provides, such as cookie affinity, URL-based routing, support for routing based on sites or ability to inject X-Forwarded-* headers.
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When configured with end to end SSL communication mode, application gateway terminates user SSL sessions at the gateway and decrypts user traffic. It then applies the configured rules to select an appropriate backend pool instance to route traffic to. Application gateway then initiates a new SSL connection to the backend server and re-encrypts data using the backend server's public key certificate before transmitting request to the backend. End to end SSL is enabled by setting protocol setting in BackendHTTPSetting to Https, which is then applied to a backend pool. Each backend server in the backend pool with end to end SSL enabled must be configured with a certificate to allow secure communication.
Azure Application Gateway is a layer-7 load balancer. It provides failover, performance-routing HTTP requests between different servers, whether they are on the cloud or on-premises.
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Application Gateway provides many Application Delivery Controller (ADC) features including HTTP load balancing, cookie-based session affinity, Secure Sockets Layer (SSL) offload, custom health probes, support for multi-site, and many others.
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> [!NOTE]
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> Those settings are the parameters for this template. To customize the template, you can change rules, the listener, and the SSL that opens the azuredeploy.json.
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> [!IMPORTANT]
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>Azure Resource Manager templates maintained in GitHub can change over time. Make sure that you check the template before using it.
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6. Check the content under **resources** and notice the following:
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***type**. Type of resource being created by the template. In this case, the type is **Microsoft.Network/applicationGateways**, which represents an application gateway.
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***name**. Name for the resource. Notice the use of **[parameters('applicationGatewayName')]**, which means that the name is provided as input by you or by a parameter file during deployment.
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***type**. Type of resource being created by the template. In this case, the type is `Microsoft.Network/applicationGateways`, which represents an application gateway.
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***name**. Name for the resource. Notice the use of `[parameters('applicationGatewayName')]`, which means that the name is provided as input by you or by a parameter file during deployment.
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***properties**. List of properties for the resource. This template uses the virtual network and public IP address during application gateway creation.
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7. Navigate back to [https://github.com/Azure/azure-quickstart-templates/blob/master/101-application-gateway-create/](https://github.com/Azure/azure-quickstart-templates/blob/master/101-application-gateway-create).
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8. Click **azuredeploy-paremeters.json**, and then click **RAW**.
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9. Save the file to a local folder on your computer.
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10. Open the file that you saved and edit the values for the parameters. Use the following values to deploy the application gateway described in our scenario.
Azure Application Gateway is a layer-7 load balancer. It provides failover, performance-routing HTTP requests between different servers, whether they are on the cloud or on-premises.
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Application Gateway provides many Application Delivery Controller (ADC) features including HTTP load balancing, cookie-based session affinity, Secure Sockets Layer (SSL) offload, custom health probes, support for multi-site, and many others.
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> [!IMPORTANT]
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> Before you work with Azure resources, it's important to understand that Azure currently has two deployment models: Resource Manager and classic. Make sure that you understand [deployment models and tools](../azure-classic-rm.md) before working with any Azure resource. You can view the documentation for different tools by clicking the tabs at the top of this article. This document covers creating an application gateway by using Azure Resource Manager. To use the classic version, go to [Create an application gateway classic deployment by using PowerShell](application-gateway-create-gateway.md).
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## Before you begin
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> [!NOTE]
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> If you need to configure a custom probe for your application gateway, see [Create an application gateway with custom probes by using PowerShell](application-gateway-create-probe-ps.md). Check out [custom probes and health monitoring](application-gateway-probe-overview.md) for more information.
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## Create a virtual network and a subnet for the application gateway
> The default value for **InstanceCount** is 2, with a maximum value of 10. The default value for **GatewaySize** is Medium. You can choose between **Standard_Small**, **Standard_Medium**, and **Standard_Large**.
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## Create an application gateway by using New-AzureRmApplicationGateway
Copy file name to clipboardexpand all lines: articles/application-gateway/application-gateway-create-gateway-cli.md
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services: application-gateway
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documentationcenter: na
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author: georgewallace
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manager: carmonm
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manager: timlt
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editor: ''
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tags: azure-resource-manager
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ms.topic: article
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ms.workload: infrastructure-services
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ms.date: 11/16/2016
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ms.date: 12/12/2016
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ms.author: gwallace
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---
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> [!NOTE]
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> If you don't have an Azure account, you need one. Go sign up for a [free trial here](../active-directory/sign-up-organization.md).
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## Scenario
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> [!NOTE]
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> Additional configuration of the application gateway, including custom health probes, backend pool addresses, and additional rules are configured after the application gateway is configured and not during initial deployment.
> For a list of parameters that can be provided during creation run the following command: **azure network application-gateway create --help**.
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This example creates a basic application gateway with default settings for the listener, backend pool, backend http settings, and rules. It also configures SSL offload. You can modify these settings to suit your deployment once the provisioning is successful.
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If you already have your web application defined with the the backend pool in the preceding steps, once created, load balancing begins.
Azure Application Gateway is a layer-7 load balancer. It provides failover, performance-routing HTTP requests between different servers, whether they are on the cloud or on-premises.
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Application Gateway provides many Application Delivery Controller (ADC) features including HTTP load balancing, cookie-based session affinity, Secure Sockets Layer (SSL) offload, custom health probes, support for multi-site, and many others.
Azure Application Gateway is a layer-7 load balancer. It provides failover, performance-routing HTTP requests between different servers, whether they are on the cloud or on-premises.
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Application Gateway provides many Application Delivery Controller (ADC) features including HTTP load balancing, cookie-based session affinity, Secure Sockets Layer (SSL) offload, custom health probes, support for multi-site, and many others.
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4. The servers that you configure to use the application gateway must exist or have their endpoints created either in the virtual network or with a public IP/VIP assigned.
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## What is required to create an application gateway?
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When you use the `New-AzureApplicationGateway` command to create the application gateway, no configuration is set at this point and the newly created resource are configured either by using XML or a configuration object.
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The values are:
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> [!NOTE]
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> If you need to configure a custom probe for your application gateway, see [Create an application gateway with custom probes by using PowerShell](application-gateway-create-probe-classic-ps.md). Check out [custom probes and health monitoring](application-gateway-probe-overview.md) for more information.
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![Scenario example][scenario]
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### Create an application gateway resource
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To create the gateway, use the `New-AzureApplicationGateway` cmdlet, replacing the values with your own. Billing for the gateway does not start at this point. Billing begins in a later step, when the gateway is successfully started.
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The following example creates an application gateway by using a virtual network called "testvnet1" and a subnet called "subnet-1".
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The following example creates an application gateway by using a virtual network called "testvnet1" and a subnet called "subnet-1":
> The default value for *InstanceCount* is 2, with a maximum value of 10. The default value for *GatewaySize* is Medium. You can choose between Small, Medium and Large.
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*VirtualIPs* and *DnsName* are shown as blank because the gateway has not started yet. These are created once the gateway is in the running state.
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> [!IMPORTANT]
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> The protocol item Http or Https is case-sensitive.
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The following example shows how to use a configuration file to set up the application gateway. The example load balances HTTP traffic on public port 80 and sends network traffic to back-end port 80 between two IP addresses.
The following example shows how to configure the application gateway by using configuration objects. All configuration items must be configured individually and then added to an application gateway configuration object. After creating the configuration object, you use the `Set-AzureApplicationGateway` command to commit the configuration to the previously created application gateway resource.
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> [!NOTE]
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> Before assigning a value to each configuration object, you need to declare what kind of object PowerShell uses for storage. The first line to create the individual items defines what **Microsoft.WindowsAzure.Commands.ServiceManagement.Network.ApplicationGateway.Model(object name)** are used.
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> Before assigning a value to each configuration object, you need to declare what kind of object PowerShell uses for storage. The first line to create the individual items defines what `Microsoft.WindowsAzure.Commands.ServiceManagement.Network.ApplicationGateway.Model(object name)` are used.
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### Step 1
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> [!NOTE]
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> The `Start-AzureApplicationGateway` cmdlet might take up to 15-20 minutes to finish.
Multiple site hosting allows you to deploy more than one web application on the same application gateway. It relies on presence of host header in the incoming HTTP request, to determine which listener would receive traffic. The listener then directs traffic to appropriate backend pool as configured in the rules definition of the gateway. In SSL enabled web applications, application gateway relies on the Server Name Indication (SNI) extension to choose the correct listener for the web traffic. A common use for multiple site hosting is to load balance requests for different web domains to different back-end server pools. Similarly multiple subdomains of the same root domain could also be hosted on the same application gateway.
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Choose which of your Azure subscriptions to use.
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```powershell
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Select-AzureRmSubscription -SubscriptionName "Name of subscription"
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Select-AzureRmSubscription -Subscriptionid "GUID of subscription"
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```
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### Step 4
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> If you need to configure a custom probe for your application gateway, see [Create an application gateway with custom probes by using PowerShell](application-gateway-create-probe-ps.md). Visit [custom probes and health monitoring](application-gateway-probe-overview.md) for more information.
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