Azure AD (creating custom multi factor authentication instead of using the one provided by Azure) - azure-active-directory

I am developing an application which uses Azure AD as authentication provider.
Need to implement a two factor authentication for the application.
Is it possible to create our own provider and plugin into azure without using the one available with Azure AD.

As far as I know, the Azure AD doesn't support to use the third-party MFA authentication provider.
However we are also could build multi-factor authentication into custom apps with Azure AD. More detail about this you can refer this document.

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Azure Managed IDentity - On Prem Applications

We have several apps which are built using .NET are running in VMS(on-prem)
All apps will be registered to Azure AD.
Can we use user managed identity to access key vault form these on-prem apps
Thanks in advance
No, you cannot use a Managed Identity from on-prem apps.
[...] a managed identity is a service principal of a special type that may only be used with Azure resources.
Source: What are managed identities for Azure resources?
To see a list of resources currently supported, see Services that support managed identities for Azure resources.
You can, however, use a Service Principal to connect to Key Vault from an application running on-premises.
To do so, Use the portal to create an Azure AD application and service principal that can access resources.
For Service Principals, authentication can be done in two different ways: password-based authentication (application secret) and certificate-based authentication. Using a certificate is recommended, but you can also create an application secret.
To access resources that are secured by an Azure AD tenant, the entity that requires access must be represented by a security principal. This requirement is true for both users (user principal) and applications (service principal). The security principal defines the access policy and permissions for the user/application in the Azure AD tenant. This enables core features such as authentication of the user/application during sign-in, and authorization during resource access.
If you cannot use managed identity, you instead register the application with your Azure AD tenant, as described on Quickstart: Register an application with the Azure identity platform. Registration also creates a second application object that identifies the app across all tenants.

Terraform provider Azure - how to manage Identity and Access Management (Azure AD)?

Is it possible to manage users and groups using Terraform?
Operations such as MFA, user-types, Authentication methods, Registration, notification, User settings, group settings, and Device settings.
Is it possible to manage users and groups using Terraform?
Yes, you can use Terraform to integrate with Azure AD and manage users and groups in Azure AD. At the same time, Terraform supports a number of different methods for authenticating to Azure AD.
Please see:here.

Using Azure AD as a authentication provider for Azure B2C

I have an angular-cli (v8) web application where I want users to be able to sign-in using their existing Azure AD account.
I came across the article explaining how to added authentication to an angular 8 application using Azure B2C and started to follow the step outlined in that article. https://about-azure.com/using-azure-ad-b2c-with-angular-8/
Azure AD is not on the list of authentication providers
Is is possible to add Azure AD as an authentication provider?
Technically my application is an Service Fabric application using .net core 3.1. I know that Visual Studio offers and "Add Connect Services" where one can choose Azure AD.
That does not work, because it configures authentication for a MVC application (options use.MVC) and I do not have an MVC application so it doesn't work (I have tried)
Is is possible to add Azure AD as an authentication provider?
Yes, you need to select New OpenID Connect provider and configure Azure AD as an identity provider.
Reference:
Set up sign-in for a specific Azure Active Directory organization in Azure Active Directory B2C

Azure AD B2C - Client Credential flow not supported . Workarounds Available?

Referred the following stack overflow post Azure B2C client credentials grant
We are presently using Azure B2C.
I understand that Azure B2C does not support the client credential flow for now.
We have a requirement where an external application (server Application outside our organization) needs to access our resource (api hosted within our organization)
Is there any way we can do this from Azure AD-B2C or would we need Azure AD-B2B for these type of requirements. ?
Currently, your specific scenario -- where you are needing an access token to be issued for access by a daemon or server app to your API app -- isn't supported, however you can register the API app through the “App Registrations” blade of the Azure AD directory for your Azure AD B2C tenant.
You can upvote support for the client credentials flow by Azure AD B2C at:
https://feedback.azure.com/forums/169401-azure-active-directory/suggestions/18529918-aadb2c-support-oauth-2-0-client-credential-flow
If the API app is to receive tokens from both a web/native app as well as the daemon/server app, then you will have to configure the API app to validate tokens from two token issuers: one being Azure AD B2C and other being the Azure AD directory for your Azure AD B2C tenant.
You should not do this anyway.
Instead, provide a portal for your customers where they can manage api keys.
Implement api keys as a second auth schema in your Api

How to implement single sign-on using kerberos authentication in azure active directory

Using Azure Active Directory When i am applying single sign on for my web application i am able to do the Password-based single sign-on successfully.
But when i am doing with Integrated Windows Authentication(for kerberos authentication mainly), i am not able to configure it. i am very confused.
Can anybody guide me how to enable kerberos authentication for web application.
or please send me any example links how to set kerberos authentication for web applications.
Thanks!
If you are trying to use Azure AD with Kerberos for Windows Integrated Authentication there was a comment about AADConnect, which has some offerings, especially if you use ADFS for Federated sign-ins. There is also the Azure App Proxy with KCD support

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