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I have started a compute instance on Google Cloud and installed a Flask server. During setup I selected "allow htpp and htpps traffic". I started the server and it is running at port 8088. I can browse to the sever on the localhost (http://127.0.0.1:8088/).

I am trying to access the Flask server from an external browser. I have set a firewall rule to allow connections at port 8088, for ip ranges 0.0.0.0/0.

When I try to connect to the server making use of the instance's external ip at the 8088 port, I get "connection refused" (http://34.70.123.xxx:8088/)

I have searched for a solution, and I have managed to get this setup working with a Superset server, but I can seem to solve this one.

UPDATE

I think one of the issues is that I ran the flask sever at 127.0.0.1, which is only visible locally. I have changed the server config to run at 0.0.0.0, which should be visible to the external network. But now when I navigate to the external ip address, I get the error "This site can’t be reached 34.70.123.xxx unexpectedly closed the connection."

UPDATE 2

I have managed to access the server from an external browser. Using http:// instead of https:// worked. Not sure why the secured protocol doesn't work.

Raynel A.S
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Bernard Esterhuyse
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1 Answers1

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When I curl your https I get the following error message:

curl: (35) error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

It seems that this was already addressed in a another thread

I hope this helps

Raynel A.S
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