Azure VM, unable to connect from internet on ports configured (9089-9095)

Asked Aug 03 '20 at 17:17

Active Aug 04 '20 at 12:37

Viewed 247 times

I have created a VM on Azure with below steps:-

Created VM
Assigned a public static IP
Created a new Virtual Network (Subnet default - (10.0.0.0/24)
Did not create a NSG initially (NIC NSG was NONE - Not BASIC OR ADVANCE)
No firewall or loadbalancer
At this point my team could access port 22 and asked me to enable ports 9089-9095 for testing APIs
Created a NSG and associated with both Network interface (Basic) and Virtual network
Inbound rules I opened up all ports with maximum priority
I also enabled IP forwarding for NIC
No Route tables configured. No NAT configured
Right now as well I am able to access port 22 only

Telnet to any other port responds with:

Connection failed: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond :9091

edited Aug 04 '20 at 12:37

kenlukas

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asked Aug 03 '20 at 17:17

Ujwal Tamminedi

1

A service must be running on the port before you can connect to it. But it sounds like your other team members will take care of this. – Michael Hampton Aug 03 '20 at 17:28
The other team wants to access my VM using a public IP. They have asked for access to the VM using ports 9089- 9095. As per them they need this to test APIs – Ujwal Tamminedi Aug 03 '20 at 17:52
Yes, but is anything running on ports 9089-9095? What protocol is the process expected to respond to on those ports? – Wesley Aug 03 '20 at 17:56
So based on above and google, do i need a application gateway? – Ujwal Tamminedi Aug 03 '20 at 18:22
No, the other team needs to start a service. – Michael Hampton Aug 03 '20 at 18:37
Should it not be that the VM has to have a listener on that port? – Ujwal Tamminedi Aug 03 '20 at 18:47
I get your point now – Ujwal Tamminedi Aug 03 '20 at 18:51
Now port 9090 is working but 9091-9095 are not responding. Netstat shows all are listening. Any reason one port is responding, others are not? – Ujwal Tamminedi Aug 04 '20 at 06:30
There are really only 3 reasons why something would not respond. 1. Nothing is listening on the port, 2. the local firewall on the VM is blocking access, 3. An NSG is blocking access, that's pretty much it – Sam Cogan Aug 05 '20 at 19:17

Azure VM, unable to connect from internet on ports configured (9089-9095)

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