How Azure App Service Encryption in Transit Works

Azure App Service Encryption in Transit is a powerful tool that protects your data as it moves between your users and your app. It uses industry-standard Transport Layer Security (TLS) protocols to encrypt data in transit.

Here's how it works: Azure App Service Encryption in Transit is enabled by default for all new Azure App Service applications. This means that your data is already protected as soon as you create a new app.

Azure App Service Security is a top priority for any cloud-based application. To ensure data encryption in transit, you can use Azure Application Gateway, which provides a detailed step-by-step guide on how to set it up.

One such guide is available on how to encrypt data in transit with Azure Application Gateway. This guide is a must-read for anyone looking to secure their Azure App Service.

Using Azure Application Gateway to encrypt data in transit is a straightforward process. You can follow the detailed step-by-step guide provided in the documentation.

This guide will walk you through the process of setting up data encryption in transit using Azure Application Gateway. It's a great resource for anyone looking to improve the security of their Azure App Service.

To get started with Azure App Service encryption in transit, you'll need to meet a few prerequisites. You'll need an Azure subscription, which you can create for free if you don't already have one.

A Virtual Network (VNet) is also required, as the Application Gateway must be within the same VNet as your application server VMs or services.

To summarize, you'll need an Azure subscription and a Virtual Network to proceed.

Here are the specific prerequisites you'll need:

Before you start setting up your Application Gateway, make sure you have the necessary prerequisites in place.

First and foremost, you'll need an Azure subscription. If you don't already have one, you can create a free account.

You'll also need a Virtual Network (VNet) where your Application Gateway will reside. This VNet should be the same one where your application server VMs or services are running.

To get started, you'll need to have backend servers set up, such as VMs, web apps, or Azure Kubernetes Service (AKS).

Configure Settings is a crucial step in setting up a secure Application Gateway. You'll want to navigate to the resource page in the Azure Portal to access the Settings section.

Under the Settings section, select SSL settings to configure your SSL/TLS settings. This will allow you to choose between predefined policies and custom policies, which offer pre-configured SSL policy settings or granular control, respectively.

Predefined policies are a great option if you need to get started quickly, while custom policies provide more flexibility if you require specific settings. To ensure strong security, choose the minimum TLS version, such as TLS 1.2, for your Application Gateway.

By following these steps, you'll be well on your way to configuring a secure and reliable Application Gateway.

Certificate Management is a crucial aspect of securing your Azure App Service. You can secure your apps with HTTPS, and App Service lets you choose from several types of certificates, including a Free App Service Managed Certificate.

To upload an SSL certificate, you'll need to click on "Listeners" in the SSL settings, then choose "Multi-site" or "Basic" listener depending on your needs. Set the "Frontend IP" to the IP configuration you've chosen during the creation of the Application Gateway.

For the upload process, you'll need to select "HTTPS" as the protocol and choose "Upload a certificate". You can then upload your SSL certificate in .pfx format and provide the password for the certificate if applicable. Azure Key Vault can also be used to store and reference certificates.

After uploading your SSL certificate, ensure that it's bound to the new listener by saving the changes to your listener configuration. This is a critical step to ensure secure connections to your custom domain.

Here are the types of certificates supported by App Service:

By following these steps and choosing the right certificate for your needs, you can ensure that your Azure App Service is properly secured with HTTPS.

Your app may need to access various types of remote resources, including Azure resources, resources inside an Azure Virtual Network, and on-premises resources. To make secure connections, App Service provides a way to do so, but you should still observe security best practices.

Always use encrypted connections, even if the back-end resource allows unencrypted connections. This ensures that your data remains secure during transmission. You can find the outbound IP addresses for your app at Inbound and outbound IP addresses in Azure App Service.

To securely access on-premises resources, you have three options: hybrid connections, Virtual Network integration with site-to-site VPN, or App Service environment with site-to-site VPN. These methods establish a secure connection to your remote resource through a TCP tunnel or site-to-site VPN.

Here's a summary of the secure connection methods for on-premises resources:

Hybrid connections: Establishes a point-to-point connection using TLS 1.2 with shared access signature (SAS) keys.Virtual Network integration with site-to-site VPN: Connects to on-premises resources like other resources in the Virtual Network.App Service environment with site-to-site VPN: Connects to on-premises resources like other resources in the Virtual Network.

App Service provides a simple way to secure your app against unencrypted connections by enforcing HTTPS, which turns away unsecured requests before they reach your application code.

You should disable outdated protocols like TLS 1.0, as it's no longer considered secure by industry standards, such as PCI DSS.

App Service lets you enforce TLS 1.1/1.2 to ensure more secure connections.

For file deployment, use FTPS instead of FTP whenever possible, as FTPS is a more secure option.

If you're not using FTP or FTPS, it's a good idea to disable them to prevent any potential security risks.

Azure resources can be accessed securely through your app, and the connection stays within Azure, not crossing any network boundaries. This means you don't have to worry about data being transmitted across different networks.

However, it's essential to ensure that your connection is encrypted, even if the back-end resource allows unencrypted connections. This is a security best practice to protect your data.

You can connect to supported Azure services using Virtual Network service endpoints if your app is hosted in an App Service environment. This is a secure and efficient way to access Azure resources.

To connect to Azure resources, such as SQL Database and Azure Storage, always use encrypted connections. This is crucial to prevent data breaches and unauthorized access.

Here are the three methods to connect to Azure resources: