I will be hosting a web application using a Web App Service that stores data to a database using SQL Database Service in Azure. I do not need access to the server and I do not need a virtual machine, I want to keep my configuration as a (Paas) Platform as a service. My question is: how do I setup a DMZ in azure to protect the web app? This web app will be available to the public and there will be an admin section where the admins can update/add data.
1.Please have a try to create NSGs to control inbound and outbound access to network interfaces (NICs) and subnets.
• Create a Network Security Group and virtual network then config it follow the document
• Integrate your app with an Azure Virtual Network
detail info please refer to the Integrate your app with an Azure Virtual Network
• If you want to get more info about VET, please refer to Azure Virtual network
2.You also can have a try to use ASE and there are some ASE related
Introduction to App Service Environment
Configuring a Web Application Firewall (WAF) for App Service Environment
How to Control Inbound Traffic to an App Service Environment
Related
I have a basic app up and running as a docker container within Azure App Service.
I have an internal endpoint in my company I would like my Azure App Service have access to.
The internal endpoint is a private non internet reachable address - it does not run in azure.
What are my options?
Would prefer not to create a public IP for my private (non azure) endpoint.
Is there some way i can create a some VPN between the app service and private endpoint?
It's possible to enable networking from app service and set up site to site VPN connection to your on-premise network to allow access your on-premise private endpoint from web app in the Azure app service. See How regional VNet Integration works for more details.
Please note that Azure Virtual Network (VNet) integration for Linux Web App is currently in Preview. Customers can use the VNet feature for development and integration testing with your web apps. Please do not use the feature for production purposes.
You could view these related documents for more information:
https://github.com/Azure/app-service-linux-docs/blob/master/app_service_linux_vnet_integration.md
https://azure.microsoft.com/en-us/blog/azure-app-service-update-free-linux-tier-python-and-java-support-and-more/
https://github.com/MicrosoftDocs/azure-docs/issues/41790#issuecomment-571359376
Can we host website in Azure Virtual Machine and access that in another website which in hosted as Azure web app service?
We have community website which we want to host on azure virtual machine and we want to update/get community website content using web API on website which is hosted as Azure Web App.
So is it possible to access Azure Virtual Machine local site in Azure web App Service?
It's possible to access Azure VM resources from Azure app service.
By default, the inbound and outbound of Azure app services are directly going to the Internet. If the network interface of Azure VM is assigned with a public IP, and the websites in the Azure VM has published to the internet, then you can access that Azure VM website from your app service, just like the normal public websites do.
In addition, if you want to access the Azure VM website from your app service within the Azure virtual network, you can consider integrating your app with an Azure virtual network. VNet Integration is used only to make outbound calls from your app into your virtual network. The VNet Integration feature behaves differently when it's used with virtual networks in the same region and with virtual networks in other regions. In this scenario, you don't need to assign a public IP to the Azure VM.
For more information about connecting app service to the on-premise resources or the resources in another virtual network, you could refer to this blog.
Let's me know if you need further help.
I have been messing around with Azure trying to get a web app up and running. My plan was to create a WAF and site the web app behind that, each in a seperate subnet and then to use the service endpoint tech to point the web app to a database.
I have been stopped in my tracks almost straight away with the revelation that if i want to use a WAF in front of the web app i have to configure the networking in the web app but when i choose a vnet it says that no gateway is configured for the selected VNET.
My question being is do i have to use point to site VPN to get this setup working? i thought that it would work like
INTERNET ---> VNET ----> subnet ----> WAF -----> subnet -----> web app ----> service endpoint ------> DB
but that doesnt seem to be the case. I am not keen on the idea of having to install a client certificate on every machine in our network that might want to access this website (it is currently internal). I suppose i am looking for the best of both worlds. Accessible from the internet but having the added comfort of having something like a WAF sat in front of it to make up for any security inadequacies which might exist somewhere in said app.
Thanks
As far as I know, you could not deploy a web app in a VNet unless you are using the App Service Environment(Isolated). App VNet integration could not do it. It allows you to securely access resources in a VNet. For example, you have a database on an Azure VM in a private VNet. You could not access it from Azure web app to this database if this database is not available publicly, but you could reach it via app VNet integration.
VNet service endpoints is another different service. Endpoints allow you to secure your critical Azure service resources to only your virtual networks. If you enable such service endpoint like Azure SQL database( which differs from the database on Azure VMs) in a VNet, this means only the resource in these authorized VNets could access your SQL database unless you add an exclusion like the public IP address in the firewall of the database.
In this case, you could put a Public facing Azure app gateway at the high level of the web app service, then add the Azure app gateway public IP in the IP restriction of the web app.This will restrict to access to web app via Azure web app gateway over the Internet. Also, you could control the network inbound and outbound in Azure app gateway subnet NSG. See Network security groups on the Application Gateway subnet if you want to add an NSG to the app gateway subnet level. I think these are enough if you just want to create a WAF and site the web app behind that.
Furthermore, if you want to let web app privately access the Azure SQL database. You could deploy a web app in an ASE, then enable the VNet service endpoint for Azure SQL database. App VNet integration does not need to use it with the service endpoint.
If you want to use Azure WAF with Azure App Service (multi-tenant) you can, you just need to ensure you are supplying the host header with your request.
If you want you Azure Web App on a VNet, you will need to run your Azure Web App on an App Service Environment (Isolated). This version of Azure Web App is more expensive but allows you to apply NSG's to the VNet to fully control access to your web app. Personally I think WAF w/ Azure App Service (multi-tenant) should meet your needs.
We have it all documented here:
https://learn.microsoft.com/en-us/azure/application-gateway/application-gateway-web-app-overview
https://learn.microsoft.com/en-us/azure/application-gateway/configure-web-app-portal
How can I make the Azure Web App or web service to only through Application Gateway and disable direct access. So nobody will be able to access through the direct Fully Qualified Domain name such as mysite.azurewebsite.net?
Thanks for your help in advance.
You could set up Azure web app in the ILB Azure service environment. Azure ASE is a deployment of Azure App Service into a subnet in an Azure virtual network (VNet). This ILB ASE (Internal ASE) isn't exposed to the Internet. You can follow this blog to run an App Service behind a WAF-enabled Application Gateway.
This Web App isn't publicly accessible as it is sitting in a subnet
inside a Virtual Network and it isn't exposed to the internet. The
only way to access the site is through a Web Application Firewall
enabled Application Gateway.
Besides, If you just want to restrict public access to your Azure Web Apps with the IPSecurityRestrictions option, you can refer to this to get more references.
I have a .NET Web Api project with several REST endpoints that I only want accessed by resources from within an Azure virtual network I have created. Resources such as Azure Functions and Azure Web Roles will access these endpoints only. In other words, I do not want the endpoints publicly available.
So, I configured the Web Api application with my virtual network but apparently I also need to add the Web Api application to an Application Service Environment (which are quite costly from what I have read). To quote the Azure documentation:
VNET Integration gives your web app access to resources in your virtual network but does not grant private access to your web app from the virtual network.
Do I indeed need to use an Application Service Environment and just deal with the costs or is there another way I can achieve what I want?
I do not want the endpoints publicly available.
Until now, Azure web app only supports for using an internal load balancer with the app service environment feature. If you want to make your Web API can only be accessed internally. An app service environment is required.
If you don't want to move your Web API to app service environment and your Azure function and web role have fixed ip addresses, you could configure the IP whitelist using ipSecurity configuration in your web API. For more information of ipSecurity, link below is for your reference.
IP and Domain Restrictions for Windows Azure Web Sites