SPICE Port (3128) Exposed to Public Internet

While examining my system, I noticed that the SPICE port (3128) appears to be open to the public Internet by default. I'm curious if this is the default setting and if there are any potential security risks?

I know what SPICE is used for, but I am interested in improving the security of my Proxmox server without disabling essential features. Therefore, I am considering using UFW to tighten security.

Can anyone give me some guidance on how to secure the SPICE port (3128) using UFW? Are there any workarounds to maintain functionality while improving security?
it's necessary to be open for systems that want to access Spice consoles - what that means for your firewall settings depends on your use case/setup.


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!