Remote access to ubuntu arm 22 desktop by TightVNC

I created an Ubuntu 22.04 EC2 using my AWS account and was able to check the installation and connection using the following commands.

sudo apt update
sudo apt install xfce4 xfce4-goodies
sudo apt install -y tightvncserver
vncserver
sudo apt-get install -y lxde
vncserver -kill :1
mv ~/.vnc/xstartup ~/.vnc/xstartup.baks

# Put the following settings in the xstartup file.
vi ~/.vnc/xstartup

#!/bin/bash
xrdb $HOME/.Xresources
startxfce4 &
/usr/bin/startlxde

chmod +x ~/.vnc/xstartup
vncserver

# Check the port number with the command below.
ps -ef | grep $(whoami) | grep vnc

Thanks for your reply. When I ran step-3, I got this info "baronyu@175.41.222.185: Permission denied (publickey)."

ps -ef | grep $(whoami) | grep vnc

If nothing is displayed when you run the above command, it means that vncserver is not running.

When I ran step-3, I got this info "baronyu@175.41.222.185: Permission denied (publickey)."

Please do not use SSH port forwarding and connect using the EC2 public IP address and port number. If the settings are correct, you should be able to connect using the VNC client installed on your PC.

EC2-PublicIP:port-number

I used VNC Viewer as VNC client to connect it, but failed, either. P.S. using this format: EC2-PublicIP:port-number

I found there is no .Xresource file and I create a new one, but it seems not to work well. I can only get a static display which I cannot do anything, so how do you set up the .Xresource file?