Question How to forward port to flask server?

[prof]

Server operating system version

Debian 11

Plesk version and microupdate number

18.0.65 #2

I'm currently working on a student project that requires me to deploy a super simple API. Since it's quite portable and easy to configure I've opted to use flask and since I already own a vserver that runs Plesk, I've figured I could just keep it running there as long as I need it. However when I just deployed it by running it with python on port 54447 I could not get it to work at all, even though it works on my local machine.

I pretty much just want to be able to type http://<my-ip>:54447 and interact with the API.

I tried setting up the NGINX-Proxy like here: Question - how to access python flask on my server?
I also tried setting up apache2 with additional directives like so:

<Proxy *>
Order deny,allow
Allow from all
</Proxy>

ProxyPreserveHost On

<Location "/">
ProxyPass "http://127.0.0.1:54447/"
ProxyPassReverse "http://127.0.0.1:54447/"
</Location>

Nothing seems to work, and I don't want to change configuration files by hand, since I may have already broken a previous Plesk installation that way ;-)
When I enter the domain with the port in my browser, it just seems to continue loading.

I would greatly appreciate any suggestions. I really just want to deploy the app, have it running for a few weeks and then shut it down again.
Thank you!

 

[scsa20]

You only need to worry about doing a proxypass if you are wanting to connect to your service via standard 443 or 80 (and thus no need to add the IP:54447). If you want to go directly to port 54447 then you'll want to edit the firewall settings to open port 54447 from the outside.

 

[prof]

Thanks for the quick response.

Then I have a new issue, haha. I don't know how to configure the firewall, since I don't think I ever activated it.

There's just the web application firewall setting, which doesn't let me configure any ports. Then I installed the extension "Firewall" which just lets me enable/disable some services, but seemingly doesn't let me configure ports either.

 

[prof]

Sorry for the double post. An epiphany just struck me - it's a layer 8 issue.

Ionos is my vserver provider and has an external firewall configured.
This firewall of course blocks the port I'm trying to access - so I'm not even reaching my server.

I'll try the setup again and unblock the port in the firewall of Ionos. Should probably work then.