guac-install VS Tiger VNC

It maybe mine works because, you installed using docker and I used this guy's Guac install

I had it running in a Debian (9 or 10, it was a couple of years ago) LXC using this install script, maybe give it a try?

I'd suggest that instead of doing it on the base ProxMox install, do it in a debian 11 lxc container, using this install script that will do almost everything for you. You'll have to forward the public facing port from pmx to the lxc.

VPN, wireguard, blocking, chrome. I had a similar case and a perfect solution proved to be Apache Guacamole (https://guacamole.incubator.apache.org/). Absolutely clientless RDP/SSH access to any server with any common browser (HTML5). Works as a proxy for RDP/SSH (magic) Simple install on Ubuntu via https://github.com/MysticRyuujin/guac-install and an extra Nginx (see bottom of readme). Who needs OpenVPN anymore - I bet it cannot be locked down as long as you have the ubuntu public IP allowed.

I used the MysticRyuujin script to perform the upgrade and immediately had some issues based on an Ubuntu server 20.04.3 installation. No connections worked. The underlying issue is the guacd service listening on IPv6 and Tomcat working on IPv4.

However, I wanted to be able to access my guacamole instance remotely as well. I installed it using a script and have TOTP in front of it also, but I didn't like the idea of guacamole being accessible to the wider internet since it essentially has full access to my computers. I installed it a while ago in an LXC using this script.

I used the mysticryuujin's script here: https://github.com/MysticRyuujin/guac-install

This has been around for a while and so far RealVNC does not have a fix. It's possible that something like TigerVNC [their site] may cope but I've not tried it.

PS. OpenBSD comes with vmctl, it is a tool like Docker or Qubes VMs. You can jail Firefox inside a VM then connect to their GUI desktop via tigervnc. But I believe, it is too paranoid. Separate user and separate disk partition for Firefox is more than sufficient, given OpenBSD paranoid approach to the application address spaces.

https://github.com/TigerVNC/tigervnc/issues/662 which still shows OPEN.

Tried TigerVNC but I wont even connect.

Its probably a problem with your vnc server Maybe this could help.

Create a file called config and add one option each line if you need to give the VNC server more choices. Here's an illustration: Edit ~/.vnc/config

You can use vnc