![]() The output below shows an endpoint with no probe port configured (ProbePort is 0, LBSetName, and the other Probe* properties are blank). PublicPort parameters, no probe port is configured. When you create an endpoint using Add-AzureEndpoint specifying just LocalPort property, which in this example is 6005 (not that there is anything special about that port number). If you had created an endpoint using the management portal, the ProbePort property will match the To view the existing endpoints for a VM, you can run: Get-AzureVM -ServiceName CS1 -Name VM | Get-AzureEndpoint You can run Get-AzureVM to view the Name and Get-AzureVM -Servicename CS1 -Name VM1 | Add-AzureEndpoint -Name FTP-Dynamic-60005 -Protocol TCP -LocalPort 60005 -PublicPort 60005 | Update-AzureVM This will create the endpoint without a probe port (which was the portal behavior until recently).įor example, if my VM is named VM1 and it is in a cloud service CS1: Remove the endpoints and then create them with Azure PowerShell using Add-AzureEndpoint, specifying only the name, protocol, localport and publicport parameters. The 10.x.x.x address you see in the VM is the host server's IP address that the load balancer uses as the source IP to probe the port. As a result, the endpointĪs unhealthy and stops sending traffic to the endpoint port. It is not open to the load balancer so the load balancer is unable to probe this port. Port 60005 (for example) is likely only open in the Windows Firewall in the VM to those remote IPs that negotiated the passive mode ftp. Port 21 is open to all in Windows Firewall in the VM, so probe is successful, the endpoint is healthy and remote IPs can connect to it. Port to determine the health of the endpoint and if it does not get a response after a few retries, it will stop forwarding traffic to the endpoint port. Now by default it configures a probe port on the endpoint where the probe port is the same as the endpoint port. The load balancer sends packets to the probe We believe this may have to do with a recent change to how the portal creates endpoints. Create a load-balanced set is not enabled by default for new endpoints, and no probe port is configured:īy selecting Create a load-balanced set, there will be an additional page available forĬonfigure the load-balanced set where you can configure probe port settings: Reconfigure the load-balanced set, and the next page shows the probe port settings. If you leave it unchecked, no probe port is configured.įor existing endpoints, you can verify if a probe port is configured by clickingĮdit at the bottom of the page, and if it is a load-balanced endpoint you can check the option for ![]() If you check Create a load-balanced set, you'll see an additional page forĬonfigure the load-balanced set where you can define probe port settings. Now when you create an endpoint in the portal, by default, no probe port is configured. ![]() Update - This issue has been addressed in the portal update released. %windir%\system32\inetsrv\appcmd set config /section:system.ftpServer/firewallSupport /lowDataChannelPort:7000 /highDataChannelPort:7003)ĥ) Restarted the FTP server (net stop ftpsvc and net start ftpsvc)Ħ) Tried with the firewall both enabled and disabled (netsh advfirewall set global StatefulFtp enable)Īny ideas? I've verified with Wireshark that the client is trying to use the dynamic port, and that the dynamic ports are being used when I try locally. FTP passive fails with the server responding back with "550 The network connection was aborted by the local system" (this message returns on the controlĬhannel/port 21 immediately after the SYN packet is sent to one of the dynamic ports).ġ) Configured IIS on the VM with an FTP siteĢ) Set the FTP firewall support IP address to the public IP address of the Azure VM instance (for what it's worth, I've also tried with this field empty and tried with the private IP address, none of them work)ģ) Set up endpoints for FTP control (TCP/21), FTP data (TCP/20), and FTP dynamic ports (7000 through 7003)Ĥ) Used appcmd.exe to set the port range for FTP (i.e. 've tried the suggestions on a number of sites ( and ,įTP on Windows Azure Virtual Machine) and it won't work.įTP active and passive both work from the VM to itself.
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