What IP should I use for my web service?

Hi, I am trying to run a web service with Python Flask. However, everytime I use “0.0.0.0” for the IP field, I get “permission denied.” And I do believe it is the IP field that the issue is being caused as it goes through all of the code with no issues until I run the program under the IP 0.0.0.0. Here is the code for what I am talking about if anyone is curious:

if __name__ == "__main__":
    app.run(debug=True, host="0.0.0.0", port=1000)```

HI there,

The default port is 10000, maybe that’s the issue?

Alan