Just wanted to understand how Azure AD handles DDOs attack and throttling. Does it uses it's own Azure DDoS service? https://azure.microsoft.com/en-us/services/ddos-protection/#overview
Yes Azure AD uses it own Azure DDos protection and even you can live check the Azure DDos protection status of every regions
Every property in Azure is protected by Azure's infrastructure DDoS (Basic) Protection at no additional cost. The scale and capacity of the globally deployed Azure network provides defense against common network-layer attacks through always-on traffic monitoring and real-time mitigation. DDoS Protection Basic requires no user configuration or application changes. DDoS Protection Basic helps protect all Azure services, including PaaS services like Azure DNS.
For more please refer this MS document :
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I have 2-3 source systems which are on-prem databases. I am planning to use Logic Apps to connect to these source systems. As per the Azure documentation we need to install a On-Prem Gateway on a local computer.
I am skeptical of this methodology as it demands dedicated system, so not sure if this works in actual production scenario.
Please can you suggest what is the right way to do it.
Here is how to connect to on-premise data sources:
If the services are accessible over the internet then you call service endpoint over HTTP or HTTPS from azure logic apps. This article will help you with details steps to be followed: https://learn.microsoft.com/en-us/azure/connectors/connectors-native-http
If it is not accessible over the internet then this article will help with step by step process: https://learn.microsoft.com/en-us/azure/logic-apps/logic-apps-gateway-connection
Before you can access data sources on premises from your logic apps, you need to create an Azure resource after you install the on-premises data gateway on a local computer. Your logic apps then use this Azure gateway resource in the triggers and actions provided by the on-premises connectors that are available for Azure Logic Apps.
Also check this for reference.
You may also want to consider the costs.
We use LDAP and our local SQL Server databases to authenticate our users, using Apache Shiro as the app is developed with Apache ISIS. Users in the SQL Server database are REST consumers, while LDAP contains only business users. Lastly, I was instructed to move my LDAP users to MS AAD.
Is there an architecture that allows me to keep both users? Business users will access the app through the MS OpenConnect portal. At the same time, other applications can continue using DB authentication to consume REST APIs.
Yes, it's possible. Actually, the essential of your questions is "how to enable multiple authentication manner s in web app". Since AAD authentication is claimed based, very different from LDAP, so you will need to change your code for sure to upgrade from LDAP to AAD.
Regarding multiple authentication, I don't know the platform you're using. Here is an sample for ASP.NET CORE for your reference:ASP.NET Core: Supporting multiple Authorization
Is there a way to securely access a on-prem Sql Server, from an AppService?
The IT guys are nervious about letting an App Service which needs access to our on-premise database.
I am not a networking guy, and am trying to come up with a solution.
The only thing I have thought of is creating a new database (CDS_API). The AppService is then given a connection string to this database. This database would then have access to the primary database (CDS).
If the AppService has only execute permissions to CDS_API, this seems secure to me. Am I missing something?
Is there a better way to do this?
The simple solution is to use an App Service Hybrid Connection
Hybrid Connections can be used to access application resources in any
network that can make outbound calls to Azure over port 443. Hybrid
Connections provides access from your app to a TCP endpoint and does
not enable a new way to access your app. As used in App Service, each
Hybrid Connection correlates to a single TCP host and port
combination. This enables your apps to access resources on any OS,
provided it is a TCP endpoint. The Hybrid Connections feature does not
know or care what the application protocol is, or what you are
accessing. It simply provides network access.
Alternatively, you can Integrate your app with an Azure virtual network which is connected securely to your on-prem networks either with a Site-to-Site VPN or over ExpressRoute.
I would like to know if it's possible to use Active Directory integrated security within Azure Webapp Standard version to access Azure VM SQL Server.
We have an Azure VM with SQL Server installed and joined into an Azure Directory Domain Services. The VM/SQLServer is being restricted to be accessed only within the VNet, so this VM has no Public IP.
The Webapp is connected via VNet Integration to the VNet of the AD DS and VM's.
if someone could explain me if that possible/not possible to implement such a solution and what are the options that I havein AZure to use the integrated security.
Edit: Regarding managed identity in AZure Web App, only certain Azure Resources that can have a Managed Identity assigned, which here the Web App is one of them.
And to be able to access a resource using MI that resource needs to support Azure AD Authentication, this is limited to specific resources:
Source: Services that support managed identities for Azure resources
- Azure Resource Manager
- Azure Key Vault
- Azure Data Lake
- Azure SQL
- Azure Event Hubs and Service Bus
- Azure Storage
The Azure vm SQL Server is not listed as one of the resources that can be accessed through AD managed identity.
if someone could explain me if that possible/not possible to implement such a solution and what are the options that I havein AZure to use the integrated security.
Yes, it's possible. You could configure your App Service app to use Azure Active Directory to access Azure VM sql server.
Work Flow:
The VNet Integration feature is built on top of point-to-site VPN technology. Apps in Azure App Service are hosted in a multi-tenant system, which precludes provisioning an app directly in a VNet. The point-to-site technology limits network access to just the virtual machine hosting the app. Apps are restricted to only send traffic out to the internet, through Hybrid Connections or through VNet Integration.
For more details, you could refer to this article.
I am fairly new to Active directory and trying to understand it especially from application roles perspective.
I understand the use of Active Directory for authenticating internal corporate users and to implementing SSO across different applications.
What I am trying to gather are scenarios where Active directory can be used for application security ? Is it limited to creating domain users for application to use when interacting with other applications or are there other scenarios where it can be used ?
Example, in below diagram AD DS server has been added to the application landscape for 'computer objects for the failover cluster and its associated clustered roles are created in Active Directory Domain Services (AD DS)'. What does it really mean ?
Azure Active Directory (Azure AD) provides secure and seamless access to cloud and on-premises applications. Users can sign in once to access Office 365 and other business applications from Microsoft, thousands of software as a service (SaaS) applications, on-premises applications, and line of business (LOB) apps. Besides, enabling single sign-on (SSO) across applications and Office 365 provides a superior sign in experience for existing users by reducing or eliminating sign in prompts. For the details, you could read here.
And Azure AD Domain Services provides managed domain services. You can consume these domain services without the need for you to deploy, manage, and patch domain controllers in the cloud. Azure AD Domain Services integrates with your existing Azure AD tenant, thus making it possible for users to log in using their corporate credentials.
For the details about Azure AD Domain Services, please read this doc.