I cant connect to web based apps

Question

I cant connect to web based apps

Ayan Mehdi 0

Hiya, I recently got Microsoft Azure to test out Casa OS, Casa OS itself works great, but when I install any apps from the Casa Appstore it doesn't work properly, it cant connect to the website of the web app. I would appreciate any help

Thanks,

Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-26T13:49:30.1966667+00:00

Hi Ayan Mehdi,
When you run Casa OS on Azure and install web apps from the Casa Appstore, you might have trouble accessing these apps. This can happen

If Casa OS uses Docker containers to host apps. Web apps may run on different ports, and Azure's Network Security Group (NSG) might not allow or expose these ports.

Azure might block incoming traffic to the ports where your web apps run. By default a few ports (like 80 443) are open due to Firewall/Network Security Group (NSG) Limits

If you use a custom domain, your DNS records might not point to the public IP of your Azure instance.

Docker containers might bind to internal IPs that outside requests can't reach due to IP Binding or Docker Network Setup Problems

https://learn.microsoft.com/en-us/windows-app/troubleshoot-basic?tabs=windows
https://learn.microsoft.com/en-us/troubleshoot/windows-365/troubleshoot-windows-365-app
if you have any further concerns or queries, please feel free to reach out to us.
Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-27T08:54:34.5933333+00:00

Hi Ayan Mehdi,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution.

please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Ayan Mehdi 0 Reputation points

2025-03-27T09:11:03.0366667+00:00

Hi, Sorry for not responding, if you could provide a list of steps for me to take, or a guide on how to resolve it, it would be easier for me as i am a beginner in Cloud Computing

Thanks,
Ayan
Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-28T08:39:39.5866667+00:00

Hi Ayan Mehdi,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution.

please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Ayan Mehdi 0 Reputation points

2025-03-28T09:35:24.05+00:00

Thanks Alekhya Vaddepally, The issue has been fixed
Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-28T11:32:12.34+00:00

Hi Ayan Mehdi,
If the answer is helpful, please click Accept Answer and kindly upvote it so that other people who faces similar issue may get benefitted from it.

Let me know if you have any further Queries.

1 answer

Your answer

Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-26T13:49:30.1966667+00:00

Hi Ayan Mehdi,
When you run Casa OS on Azure and install web apps from the Casa Appstore, you might have trouble accessing these apps. This can happen

If Casa OS uses Docker containers to host apps. Web apps may run on different ports, and Azure's Network Security Group (NSG) might not allow or expose these ports.

Azure might block incoming traffic to the ports where your web apps run. By default a few ports (like 80 443) are open due to Firewall/Network Security Group (NSG) Limits

If you use a custom domain, your DNS records might not point to the public IP of your Azure instance.

Docker containers might bind to internal IPs that outside requests can't reach due to IP Binding or Docker Network Setup Problems

https://learn.microsoft.com/en-us/windows-app/troubleshoot-basic?tabs=windows
https://learn.microsoft.com/en-us/troubleshoot/windows-365/troubleshoot-windows-365-app
if you have any further concerns or queries, please feel free to reach out to us.
Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-27T08:54:34.5933333+00:00

Hi Ayan Mehdi,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution.

please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Ayan Mehdi 0 Reputation points

2025-03-27T09:11:03.0366667+00:00

Hi, Sorry for not responding, if you could provide a list of steps for me to take, or a guide on how to resolve it, it would be easier for me as i am a beginner in Cloud Computing

Thanks,
Ayan
Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-28T08:39:39.5866667+00:00

Hi Ayan Mehdi,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution.

please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Ayan Mehdi 0 Reputation points

2025-03-28T09:35:24.05+00:00

Thanks Alekhya Vaddepally, The issue has been fixed
Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-28T11:32:12.34+00:00

Hi Ayan Mehdi,
If the answer is helpful, please click Accept Answer and kindly upvote it so that other people who faces similar issue may get benefitted from it.

Let me know if you have any further Queries.

Answer 1

Hi Ayan Mehdi,
Make sure the NSG associated with your Azure example allows traffic coming on the port that uses your web apps. By default, some ports such as only 80 and 443 are open. You may need to make inbound rules for other ports.

you can cinfigure NSG by Go to the Azure portal and Search and open for "Network Safety Group"-> Select your virtual machine or NSG attached to the app service->click on inbound safety rules in that add new inbound rules to allow traffic for essential ports you can give give required details

Port: 8080 (Example: Adjust according to app requirements)

Protocol: TCP

Source: Anyone (or if necessary, ban on specific IP)

Action: permission

Save changes.

Check if the dock container is binding for the correct port and IP address. Ensure that they are not bound to internal IPS that cannot be accessed from outside.

If you are using a custom domain, verify that your DNS record indicates the public IP. Wrong DNS settings can prevent access to your web app

Go to your domain registrar (eg, Godaddy, namecheap)-> Update A record to indicate the public IP address of your Azure VM.

If Azure are using DNS:

Open the Azure portal and search for "DNS zone".

Select your DNS zone and update the A record accordingly.

Use a tool like curls to test connectivity from the specific port running on your web apps. This can help you determine whether the problem is accompanied by application or network configuration.
https://learn.microsoft.com/en-us/azure/container-apps/troubleshooting?tabs=bash#review-ingress-configuration
https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/windows/troubleshoot-app-connection#quick-start-troubleshooting-steps
https://learn.microsoft.com/en-us/azure/container-apps/troubleshooting?tabs=bash#verify-networking-configuration
If the answer is helpful, please click Accept Answer and kindly upvote it so that other people who faces similar issue may get benefitted from it.

Let me know if you have any further Queries.

Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-28T11:34:37.6233333+00:00

Hi Ayan Mehdi, If the answer is helpful, please click Accept Answer and kindly upvote it so that other people who faces similar issue may get benefitted from it.

Let me know if you have any further Queries.
Alekhya Vaddepally 665 Reputation points Microsoft External Staff

2025-03-31T08:36:09.1633333+00:00

Hi Ayan Mehdi, If the answer is helpful, please click Accept Answer and kindly upvote it so that other people who faces similar issue may get benefitted from it.

Let me know if you have any further Queries.

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I cant connect to web based apps

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