I was trying to connect my Azure webapp(paas) to my VM in another VNET - I could get this working by doing a VNET integration following the instructions https://learn.microsoft.com/en-us/azure/app-service/web-sites-integrate-with-vnet
I could now connect to the VMs in the destination VNET however the Webapp is now unable to connect with the Azure SQL(PaaS) . Is it not that webapp should continue to access the PaaS resources as before or do I need to update any configuration to get this connectivity.
Edit: I was able to get this working with a VPN(Route based) and with a VPN GW and P2S connection.
However for some reason I do not get this working with my existing VPN which is also a route based but has a Azure SSL VPN SSTP. Can this cause some connection issue to Azure SQL ?
Appreciate your response
PS: I do not want to use ASE specifically as the need is very limited and cost for going to ASE is high for this use case.
Related
I am currently trying to use an Azure function to connect to some on-premiseS API endpoints. Currently for reasons I cannot go into I am attempting to use the IP address for the endpoints in the Hybrid Connection. For some odd reason I cannot connect to that IP address. I have checked our Firewall Logs, LB, and the HCM box on-premises event logs. None of these show any kind of attempt at connection. Anyone have any ideas?
I can think of couple of ways to achieve this :
Create a VPN connection and Integrate a Function App with an Azure Virtual Network
you can consider this path : On-premise ----> s2s ( Site to Site) VPN ----> VNet ----> function in a subnet of VNet.
You may follow : https://learn.microsoft.com/en-us/azure/vpn-gateway/tutorial-site-to-site-portal
Check Azure Service Bus relay
For reference :
https://www.stefanroth.net/2019/01/13/azure-functions-azure-functions-using-hybrid-connections/
https://yourazurecoach.com/2017/09/26/azure-function-proxies-part-2-easily-enable-hybrid-integration/
However, if if you need assistance for application specific issue, you may consider reaching out to Microsoft Support.
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.
We are setting up SQL Always On in Azure VM (IAAS). We followed the steps given in Configure Always On Availability Group in Azure VM manually and the setup is working fine. Since the setup is using the internal load balancer, the listener is available only internally i.e. using a jump box. We are using NSGs to restrict access to the servers from our office IPs and allow access to the SQL Servers from developer machines. This works for direct access to the individual SQL server but not via listener. What can be done to allow access from outside of the VNET?
This subscription is standalone and not connected to the on-premise via site-to-site VPN or Express Route. The resources should be accessed using internet and source IPs are specifically white listed (it is a very small fixed list).
You can configure a Point-to-Site connection to allow your clients to connect the Azure VNet then use sql server.
Yes, the solution to which is to use a Point-to-Site with a VPN gateway deployed.
But, keep in mind that you can have a max of 128 users.
Apart from which, P2S should do the trick here.
We have an Azure WebJob running on an App Service connected to a vNET via Point-to-Site connection.
That same vNET is then connected to the on-premise network via a Site-to-Site VPN connection.
Routing is set up so to the Site-to-Site conn so that that the IP range of the Azure vNET (172.27.0.0/24) is sent from OnPrem > Azure. This can be tested by logging in to a VM inside of the vNET to query on premise resources - this works fine, and as expected.
If the same request (to a REST API) is sent from the WebJob, things do not work.
The IP range of the Point-to-Site (172.27.1.144/28) does not intersect with that of the vNET, so i am wondering if we need to also route this range "back across" the Site-to-Site connection also?
Another alternative is that a routing table within Azure needs to have a manual entry, somehow?
Any tips on how to troubleshoot / get this working would be much appreciated.
The IP range of the Point-to-Site (172.27.1.144/28) does not intersect
with that of the vNET, so i am wondering if we need to also route this
range "back across" the Site-to-Site connection also?
You need to do that, indeed. Not only that, you need to configure this network range (172.27.1.144/28) on your on-premises router too - so it recognises and accepts the traffic.
But in order to make the routing from the Point-to-Site (Azure app service) to the on-premise over the Site-to-Site VPN Connection, you will need to use a Virtual Appliance which is capable of forwarding the traffic.
For sake of simplicity and cost savings, you could just use Azure Hybrid Connections to connect Azure Web App / Web Job to on-premise Resource.
You can also refer to the documentation here, which lists the limitations of connecting App Service Plan to a Virtual Network, namely:
There are some things that VNET Integration does not support
including:
mounting a drive
AD integration
NetBios
private site access
Please note the last one - private site access - this is your on-premises.
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/)