13 open ports in Ubuntu VM


Rocka374

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Hello, I have set a VM (Ubuntu) with a webserver. I have forwarded 13 ports in my router to the VM internal IP.

 

I dont have any VPNs setup, I dont use argo tunnel too as I need non http ports too.

 

What are my easiest and cheapest (preferably free) options to secure my Unraid server while the ports are open and/or are there options which will allow me to close the ports but still use the services as if these ports are open?

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