Accessing host from external IP address

Question

I am using Google Cloud Compute Engine to install airflow and keep it up and running. The installation was fine and now it is running on host : 0.0.0.0:8080

I have an external IP address for this VM instance, however, I am not able to open this port through this port. I have checked firewall rules, HTTP/HTTPS traffic allowance, and everything. Everything looks fine. Any tips on why it should happen and how to solve it?

Thanks in advance :)

have you enabled TCP traffic on 8080 port? Can you show firewall rule? — Mahesh Khond, Nov 12 '19 at 09:38
You only allowed 80 and 443. You need to allow TCP:8080 port explicitly. — Mahesh Khond, Nov 12 '19 at 12:33
Does this answer your question? [How to open a specific port such as 9090 in Google Compute Engine](https://stackoverflow.com/questions/21065922/how-to-open-a-specific-port-such-as-9090-in-google-compute-engine) — Kolban, Nov 12 '19 at 15:23

score 1 · Answer 1 · answered Nov 12 '19 at 16:31

Port 8080 is not a HTTP(80) or HTTPS(443) port. You need to go VPC --> Firewall Rules and then create a new rule which allows access to tcp:8080 from all the location you want to access.

You can also put your VM tag under target destination if you want to just allow this firewall rule for this specific instance.

Hope this helps.

score 0 · Accepted Answer · answered Nov 13 '19 at 07:15

You have to open the TCP:8080 port for allowing the external traffic using firewall rule.

Please refer following gcloud command to create firewall rule:

gcloud compute firewall-rules create <RULE NAME> --direction=INGRESS --priority=1000 --network=default --action=ALLOW --rules=tcp:8080 --source-ranges=0.0.0.0/0 --target-tags=<TAG FOR TARGET VM>

For more details on how to create firewall rules using GCP console (or other options) please see Creating Firewall Rules

Accessing host from external IP address

2 Answers2