I have a .Net Web API deployed as a Web App and am trying to connect it to a MySQL db on a VM in a virtual network, but it's responding with a 500 internal server error.
My VNET just consists of one VM with no DNS or site-to-site configuration.
The preview portal says VNET Integration is connected, my certificates are in sync and the gateway is online.
I gave my VM a static IP address which I'm using in my web.config connection string, thinking requests would be routed through the gateway to the VM, but according to my general mysql log their aren't any connection attempts to the mysql server.
The address I gave my VM is within the range of addresses being routed to the VNET, and I setup an endpoint on the VM for the port I'm trying to connect to mysql on with an access rule that allows all connections, so I'm not sure why the connection doesn't appear to be getting through the gateway to my VM.
You may check this link which provides instructions on how to connect Azure App Service - Web App with Azure Virtual Network, so that it can use resources visible within network itself:
https://azure.microsoft.com/en-us/documentation/articles/web-sites-integrate-with-vnet/
App Service supports three ways to connect to VNETs.
ASE - (App Service Environment) is a dedicated Cloud Service that includes all the needed pieces for App Service and as such can be joined to a VNET. A good starting point on ASE is this blog (https://azure.microsoft.com/en-us/blog/introducing-app-service-environment/).
Hybrid Connections - an agent based way to punch an application specific "wormhole" through network boundaries (https://azure.microsoft.com/en-us/documentation/articles/integration-hybrid-connection-overview/)
Virtual Networks - a way to "dial up" from an App Service App into an network (https://azure.microsoft.com/en-us/documentation/articles/web-sites-integrate-with-vnet/)
Related
I've got an Azure app service that I'd like to use to run some software that requires licensing. The license is provided via a server on our internal network. The issue being finding a way to connect to this server.
The first option is to provide a fixed license that ties to the MAC address. However I don't think this will be possible from an app service, as it does not really have a MAC address? Can I provide a VNI to it and obtain a fixed MAC address that way?
What other options are there? Can the app service be tied to a VNET that can tunnel to the on-premises resource? Should I use a VM with a VNI instead of an app service? Any resources on these kind of problems would be appreciated.
I have used Azure Relay to connect my on-prem service with my app service. Not sure if you have already considered this option.
If your requirement is to establish a connection between your on-prem service and you app service, check out this https://learn.microsoft.com/en-us/azure/service-bus-relay/relay-what-is-it
Hope this helps
You could use VNet Integration with Azure App service and Azure VPN gateway to connect to on-premise resources. VNet Integration is used only to make outbound calls from your app into your VNet. There are Regional VNet Integration and Gateway-required VNet Integration.
How regional VNet Integration works
Regional VNet Integration works by mounting virtual interfaces with
addresses in the delegated subnet. Because the from address is in your
VNet, it can access most things in or through your VNet like a VM in
your VNet would. The networking implementation is different than
running a VM in your VNet. That's why some networking features aren't
yet available for this feature.
How gateway-required VNet Integration works
Gateway-required VNet Integration is built on top of point-to-site VPN
technology. Point-to-site VPNs limit network access to the virtual
machine that hosts the app. Apps are restricted to send traffic out to
the internet only through Hybrid Connections or through VNet
Integration. When your app is configured with the portal to use
gateway-required VNet Integration, a complex negotiation is managed on
your behalf to create and assign certificates on the gateway and the
application side. The result is that the workers used to host your
apps are able to directly connect to the virtual network gateway in
the selected VNet.
For more information, you could read this blog---How to Connect Azure Web Apps To On-Premises
In addition, If you need more control of the application deployment and less scale out or in than the Azure app service. You could host your application on the Azure VM, then set up a VPN gateway in that VNet where Azure VM locate, it allows access to the on-premise resources from your Azure VM as usual in the internal network.
I have a container (linux .NET Core) running in Azure. This application reads from Azure Service Bus and writes information in a database on-premises.
The connection to ASB is working fine but when the application tries to connect to SQL Server, I get a timeout. Initially, I was running the container with no network setup (the 'None' option). Then I went to public and it now gives me an IP address.
My infrastructure team added this IP to our firewall but either Azure is trying to access it with a different IP address OR the connection never leaves the Docker environment.
ps.: I have an App Service running (.NET Core API) and it does connect to the same SQL Server (same IP address) correctly.
Suggestions?
Since the IP address that outgoing from the Azure container group is random from Azure cloud IP list, you can not directly add its IP to the firewall. You can vote up this feature request for using the same exposed public IP for outbound traffic starting from the container group.
Currently, you could deploy container instances into an Azure virtual network, then the container could communicate with on-premises resources through a VPN gateway or ExpressRoute. For more details, you could see enable containers to use Azure Virtual Network capabilities.
I have a Service Fabric cluster hosting many legacy WCF services and I would like to connect an Azure App Service (running a website) to the fabric cluster's VNET, such that it can communicate with the WCF services in the cluster.
I connected my fabric cluster's VNET to an existing virtual network of our organization using VNET peering and I can connect to the WCF services from VMs within the existing virtual network.
However, when connecting from the app service, I got the following error:
Could not connect to net.tcp://10.0.0.250:8020/. The connection attempt
lasted for a time span of 00:00:00. TCP error code 10013: An attempt was made to access a socket in a way forbidden by its access permissions 10.0.0.250:8020.
I have configured an internal load balancer and its working ok if I connect from within the virtual network. Does anyone know why it doesn't work for the web app?
If you want to access the resources in a VNet from Azure App Service, you could enable networking for app service. Note that
VNet Integration gives your web app access to resources in your
virtual network but doesn't grant inbound private access to your web
app from the virtual network. Private site access refers to making
your app only accessible from a private network such as from within an
Azure virtual network. VNet Integration is only for making outbound
calls from your app into your VNet.
There are two versions of VNet integration, you could use Regional VNet Integration if service fabric's virtual network in the same region as your web app.
I have a VM running a WebAPI service that I want to hit from an Azure web app using a vnet-to-vnet conneciton. As such, I have the VPNs configured as follows:
Virtual Machine - VMVnet
Address Space: 10.1.0.0/16
Subnet: 10.1.0.0/24
Gateway Subnet: 10.1.1.0/27
Private IP: 10.1.0.4
I also opened the target port up in Windows Firewall.
Web App - AppVnet
Address Space: 10.2.0.0/16
Subnet: 10.2.0.0/24
Gateway Subnet: 10.2.1.0/27
I also have Virtual Network Gateways configured for both, each with a connection going to the other.
Now, after I connect the app to AppVnet and sync the routes from the app service plan's networking section, I should be able to hit the VM using its private IP from the app code. When I try, I get the following error:
An attempt was made to access a socket in a way forbidden by its access permissions
I also tried setting up Virtual Network Peering between the networks, but that didn't work either.
Is what I'm trying to do even possible with Azure web apps? I saw this question, which seemed like what I was looking for but the information in it is a bit lacking.
If not, I have tried this with a point-to-site configuration with the app connected to the VM's vnet, and it worked fine. Would it be preferable to set up a second nic on the VM using the AppVnet and connect all apps through that?
I'm just wondering why neither the vnet-to-vnet nor vnet peering works
with the web app
First of all, you need to know to Integrate your app with an Azure Virtual Network.
Here are some things to keep in mind before connecting your web app to
a virtual network:
If your target virtual network already exists, it must have point-to-site VPN enabled with a Dynamic routing gateway before it can
be connected to an app.
If your gateway already exists with point-to-site enabled, and it is not in the basic SKU, IKEV2 must be disabled in your point-to-site
configuration.
That is to say, you already have a P2S connection that you can connect to AppVnet from your App. If you want to connect to VMVnet through the AppVnet from your app, you can achieve it by gateway transit for virtual network peering in hub-and-spoke network architecture.
In the diagram, gateway transit allows the peered virtual networks to use the Azure VPN gateway in Hub-RM. In this case, your AppVnet is the Hub-RM. Your web app is the VPN client in a P2S VPN connection.
I am not sure that you real configuration in your side, but I guess your creating Vnet to Vnet connection is just like Hub-RM to Spoke-RM connection in the diagram, so it does not work. Setting up Vnet peering and gateway transit enabled, it should work. For more details about Configure VPN gateway transit for virtual network peering.
Currently I have a web app deployed on an Azure subscription and a VM deployed on another subscription.
I would like to connect both the web app and the VM to the same virtual network. I've set up a virtual network on the web app subscription with a virtual network gateway. I've also set up a virtual network on the VM subscription with a corresponding virtual network gateway.
However, after establishing the Vnet to Vnet connection between the two gateways, my app is unable to connect to the VM using the internal ip of the VM. Furthermore, the connection status between the two gateways occasionally show up as "unknown".
Does anyone know what's going wrong here? Is there some better way I can connect a web app with a VM on another Azure subscription?
Edit:
The app is deployed as a web service.
Thanks.