How can i open a port in Azure, so that a constant stream of data can be delivered to the server?

Per-Åsmund Grindholm 0

I need to send something called Artnet to a server that i am hosting. This is a constant stream of data, that will not be stored, but read by the server, to change the color of the page. I am able to do this with a local server, and when i am docking it, but not when it is uploaded to azure.

I am sending the data to a port, which i have managed to open, but it is still not working.

Syed Shiraz Shahid 275 Reputation points

2023-03-16T07:59:59.3333333+00:00
To open a port in Azure, you can use Azure Network Security Groups (NSGs) to control traffic to and from resources in an Azure virtual network. Here's how you can do it:

Go to the Azure portal and navigate to the virtual machine or virtual network you want to open the port for.

Click on the "Networking" section.

Click on "Add inbound port rule" to create a new rule for the port you want to open.

Choose the protocol (TCP or UDP) and specify the port number that you want to open.

Select the source IP address or range of IP addresses that you want to allow access to the port.

Choose the action you want to take on the traffic (allow or deny).

Click on "Add" to create the new inbound rule.

Once the rule is added, the port should be open and you can receive a constant stream of data to your server.
Per-Åsmund Grindholm 0 Reputation points

2023-03-16T08:01:03.3+00:00

This helps alot! But i am using a container instance, is it possible to do the same with this?
Syed Shiraz Shahid 275 Reputation points

2023-03-16T08:01:28.7166667+00:00
To allow a constant stream of data to be delivered to a container instance, you need to perform the following steps:

Navigate to the Azure portal and select your container instance from the list of resources.

Under the Settings section of the container instance, select Networking.

Under the Inbound port rules section, select Add.

In the Add inbound port rule pane, enter a Name for the rule.

Select a Protocol (TCP or UDP).

Enter the Port range (e.g., 8000-8010).

Under the Action section, select Allow.

Enter a Priority value for the rule.

Select Add to create the rule.

After these steps, the port you specified should be open to allow a constant stream of data to be delivered to the container instance. You may also need to configure the container instance to listen on that port and handle the incoming data appropriately.
Per-Åsmund Grindholm 0 Reputation points

2023-03-16T08:01:49.0966667+00:00

This did not help. I can not find Networking under container instance. Is this because i have a student license key? I appreciate all the help!
Prrudram-MSFT 22,396 Reputation points

2023-03-20T18:26:03.7566667+00:00

Hello @Per-Åsmund Grindholm

Did you get a chance to the response from @Prrudram-MSFT

If the answer provided has helped, please "Accept Answer" and click on Yes for "was this answer helpful" wherever the information provided helps you, this can be beneficial to other community members.

1 answer

Prrudram-MSFT 22,396 Reputation points

2023-03-17T06:25:40.3333333+00:00
Hi @Per-Åsmund Grindholm

Thank you for reaching out to the Microsoft Q&A platform.

To open a port in a container instance, you can use the EXPOSE directive in your Dockerfile. The EXPOSE directive specifies the ports that the container listens on.

Here is an example of how to open port 80 in a Dockerfile:

EXPOSE 80

You can then run the container with the desired port mapping using the -p option with the docker run command. For example, to map port 80 on the host to port 80 in the container, you would run the following command:

docker run -p 80:80 <image_name>

You can also configure the port mapping in the Azure Container Instance deployment. For more information, see the article "Quickstart - Deploy Docker container to container instance - Docker CLI

https://learn.microsoft.com/en-us/azure/container-instances/quickstart-docker-cli#main

Following docker run command is an example to create the Azure container instance with port 80 exposed to the internet:

docker run -p 80:80 mcr.microsoft.com/azuredocs/aci-helloworld

Let me know if you have any further queries.

Please accept as answer and upvote if the above information is helpful for the benefit of the community.
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Per-Åsmund Grindholm 0 Reputation points

2023-03-23T14:35:11.9+00:00

Hey! And thanks for answearing!

I have managed to open the port, but it still does not work. I am new to this, but i think i want an inbound traffic to my container instance. I want to recieve a UDP signal from my raspberry pi on port 6454 in the container instance. I am sending the UDP signal to the public IP adress of my containter instance. It says that the port is open, but it still does not work. I have not created any types of firewall, og anything that recembles protection. Is there some built in protection on a container instance from the start?

Prrudram-MSFT 22,396 Reputation points

2023-04-05T18:38:28.62+00:00

Per-Åsmund Grindholm As much as i know, there is no built-in protection on an Azure Container Instance from the start. To use UDP with ACI, you will need to specify the protocol in your container's deployment manifest or deployment configuration. For example, if you're using the Azure CLI, you can specify the protocol using the --protocol option when creating a container instance. Here's an example command that creates an ACI instance with UDP protocol enabled: az container create --name mycontainer --image myimage --resource-group myresourcegroup --ip-address public --ports 5000/udp --protocol UDP Once your container instance is running, you can verify that UDP is working correctly by sending UDP packets to the container's IP address and port. You can use tools like nc (netcat) or socat to send UDP packets from the command line. Note that some network configurations or firewalls may block UDP traffic, so you may need to configure your networking settings accordingly. In general users will need to configure a Network Security Group to allow inbound traffic to your Container Instance. We do this by creating an NSG and then adding an inbound rule to allow traffic on port 6454. For more information on configuring an NSG, please see the official documentation here: https://docs.microsoft.com/en-us/azure/virtual-network/manage-network-security-group.
You can also check if the port is open by running the following command in the container instance.

nc -zv <public-ip-address> 6454

If none of the above helps, Azure technical support team will be able to check and help with this. I would recommend you open an azure support case. If you don't have the ability to open a technical support ticket, please let me know and I can help you further with this.

Once the issue is fixed, you can post an update with the fix here for the benefit of the community.
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