Azure Container Apps
An Azure service that provides a general-purpose, serverless container platform.
450 questions
Should I allow traffic to lgn-rcp-api-northeurope.lgn-rcp-ase-northeurope.p.azurewebsites.net from Azure Container Apps
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(35.2, 77%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKM%3C/text%3E%3C/svg%3E)
Krzysztof Madej
66
Reputation points
I have Azure Container Environment with Azure Firewall. I realized that the Azure Firewall blocks some traffic to lgn-rcp-api-northeurope.lgn-rcp-ase-northeurope.p.azurewebsites.net
I tried to find out in the documentation if I should enable traffic to that URL (which seems to be App Service) but couldn't find anything.
What is the service behind this URL? Should I enable traffic to that URL?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 88%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
Carla754Hicks 0 Reputation points2024-07-09T09:20:47.2633333+00:00 Hello!
The URL lgn-rcp-api-northeurope.lgn-rcp-ase-northeurope.p.azurewebsites.net corresponds to an Azure App Service. Specifically, it’s part of an App Service Environment (ASE) in the North Europe region. ASEs provide a secure and isolated environment for running App Service apps. Since it’s an App Service, you should allow traffic to this URL if your application relies on it. Ensure that your Azure Firewall rules permit outbound traffic to this domain to avoid any disruptions.
Regards,
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Krzysztof Madej 66 Reputation points
2024-07-10T09:24:29.3533333+00:00 But what is the purpose here? Why does my Azure Container Apps need it?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(0, 59%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJM%3C/text%3E%3C/svg%3E)
JananiRamesh-MSFT 28,086 Reputation points2024-07-11T14:35:56.5366667+00:00 @Krzysztof Madej Thanks for reaching out. The URL
lgn-rcp-api-northeurope.lgn-rcp-ase-northeurope.p.azurewebsites.netis a hostname for an Azure App Service that is hosted in thenortheuroperegion. Thelgn-rcp-ase-northeuropepart of the hostname indicates that the App Service is hosted in an App Service Environment (ASE) in thenortheuroperegion.Without knowing more about your specific environment and application, it's difficult to say whether you should allow traffic to this URL. However, if your application is hosted in an Azure Container Environment and needs to communicate with this App Service, then you may need to allow traffic to this URL.
To determine whether you need to allow traffic to this URL, you should review your application's architecture and network topology, and identify any dependencies on this App Service. You should also review the Azure Firewall logs to see what traffic is being blocked and why.
Once you have identified the dependencies and reviewed the logs, you can make an informed decision about whether to allow traffic to this URL. If you do need to allow traffic, you can create a firewall rule to allow traffic from your Azure Container Environment to the App Service.
do let me know incase of further queries, I would be happy to assist you.
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Krzysztof Madej 66 Reputation points
2024-07-16T13:53:10.5733333+00:00 The case here is that this is not our infrastructure. This could be something that Azure Container Apps uses as its underlying infrastructure. But I don't know. The documentation doesn't contain any reference to such a thing.
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