I have created a Windows WCF Service and I want to host it inside Azure VM.
The service is locally running fine inside the VM, but when attempting to access the service outside of the VM, I cannot connect to the service at the specified port.
While requesting the service, I'm getting the following error:
SocketException (0x274d): No connection could be made because the target machine actively refused it...
Also, while pinging the VM through the command prompt with public ip, I'm getting Request timed out.
I have enabled the port for TCP in Azure inbound rules as well as in VM firewall inbound rules. The VM is Windows Server.
How can I access the service running in the VM from another system?
Any help is appreciated.
check application is running on the port you exposed
check windows level firewall allows traffic on that port from your destination
check NIC level NSG allows traffic on that port from your destination
check subnet level NSG allows traffic on that port from your destination
you might also have Azure Firewall\UDR\NVA in the networking setup, check those as well (this is highly unlikely if you are not running an enterprise grade setup).
Related
So I'm using an Azure VM that has a public IP address, and I've opened an inbound port, let's say it's 5555.
What I'm trying to do now is to run an application on the VM that has an API via localhost, also with the port 5555. I'm calling it then with public_ip:5555/api/...
Since I was not able to connect to the application from outside, is there something missing here? Most tutorials and resources I've found just mentioned opening the port.
Thanks.
Take a look at Azure's IP Flow Verify utility, which will check your NSG rules to ensure traffic can reach your VM. https://learn.microsoft.com/en-us/azure/network-watcher/network-watcher-ip-flow-verify-overview
If traffic is reaching your VM, check your host firewall and then your application server logs.
I am testing my own TCP client/server software, trying to use an Azure VM for testing. I have done this successfully on a Azure VM that I set up over a year ago. Now I have created a new VM that I need to test with. My service is installed on the VM and is monitoring port 18971. In the Azure portal, I have created an "endpoint" for TCP for that port. The machine is running Windows 2012. I have configured Windows Firewall with inbound and outbound rules to allow all TCP traffic to/from that port. I have also tried turning the firewall off. Still, my client software does not work, I receive error 10060 on the Winsock API "connect". I tried both the domain name and the IP address.
Any ideas of what else I have to do to allow TCP traffic? I am pretty sure this is an Azure configuration problem - I have successfully tested the software on direct connected machines as well as the old Azure VM I mentioned (I see no difference between it and the one I am trying now).
I guess you use the new type of VM with a resource manager on the old portal which you have "endpoint" for TCP for that port. You have to open some ports (endpoints) on new VM via the new portal. Refer to this.
For the new type of VM with a resource manager, you have to allow the port 18971 in the inbound port rules of NSG associated with your Azure VM or subnet.
Navigate to your virtual machine settings, and find Networking---Add inbound port rule.
I have created inbound and outbound rule on the virtual machine to allow any connection to port 5100 over tcp.
I have created an endpoint in the new Azure portal for TCP and public/private port 5100, but for some reason I can't comprehend I still can't connect.
I tried to turn off the firewall on the virtual machine, but still I can't connect to the virtual machine.
I have previously done this for port 80 with no problems. Does anyone know if Microsoft have changed anything that affects the classic vm's and endpoint configuration?
We can add endpoints via New Azure portal in this way:
We should make sure the update endpoint completed.
Hope this helps:)
I have created a CentOS 7.1 VM using Resource Manager deployment model.
I am not able to access the application using a browser on a machine connected to internet.
However I am able to access the application on same machine and other VM on same virtual network using private IP address.
I configured Network Security Group and allowed port 80 and 443 in Inbound Rules.
Well, it turned out that I needed to open ports under "Inbound Security Rules" and needed to open all in "Source Port Range". For doing so, i needed to put * there and in Destination port for https - 443 etc.
This * thing was the catch which i was missing in all the Inbound security rules for allowing the ports.
I am using Azure Virtual Machine (Windows Server 2008 R2 image) provided from the gallery and created Public port and private port using the portal. I did remote log in to VM and I run a TCP server application inside VM (TCP server binds to the private port of the VM). Problem I face is that I can not connect it through the public IP and port (from external machine). I have created a inbound rule in VM's Firewall, where I enable connection to the Private port of VM. I tried recreating the VM, also the new ports. Still problem persists. One more thing I observed is that my TCP Client is able to connect to RemoteDesktop port of the VM also the PowerShell port. But does not connect to the port that I created through the portal. Pls suggest what can be wrong?
Note: I also observed some weird behavior. I enabled all ports for my TCP Server app in Inbound rule of firewall and found that some unknown IP (was similar to azure internal IP) is connecting to my server. Why it is happening?
I would like to understand as to how you are trying to connect with the Virtual Machine, using RDP or trying to test the connectivity, for example, using Port Ping.
Endpoints for RDP and Powershell are configured by default. So if you are trying to connect using Remote Desktop, you can directly connect to the VM using MSTSC from Run and provide the IP of the VM followed by the Port Number using the below format
xx.xx.xx.xx:3389
However if you would like to test the connectivity to the VM, I suggest you to use Port Ping instead of ICMP ping since ICMP traffic is blocked by the Azure load balancer and the ping requests timeout. While Ping.exe uses ICMP, other tools such as PsPing, Nmap, or Telnet allow you to test connectivity to a specific TCP port.
On the other hand, after creating the VM, you can add endpoints additionally as needed. You can also manage incoming traffic to the public port by configuring rules for the Network Access Control List (ACL) of the endpoint.
The private port is used internally by the virtual machine to listen for traffic on that endpoint.
The public port is used by the Azure load balancer to communicate with the virtual machine from
external resources. After you create an endpoint, you can use the network access control list
(ACL) to define rules that help isolate and control the incoming traffic on the public port. For
more information, see About Network Access Control Lists.