Add GUI to Ubuntu Server on AWS

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Method 1: Using Gnome Desktop with tigerVNC server
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sudo apt update
sudo apt install ubuntu-gnome-desktop
sudo apt install tigervnc-standalone-server tigervnc-common tigervnc-xorg-extension tigervnc-viewer
vncserver
vncserver -kill :1
sudo nano  ~/.vnc/xstartup
 
        #!/bin/sh
        xrdb $HOME/.Xresources
        vncconfig -iconic &
        dbus-launch --exit-with-session gnome-session &
 
sudo chmod +x ~/.vnc/xstartup
vncserver :1 -localhost no -depth 32
netstat -tlnp
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Method 2: Using Gnome Desktop with xrdp
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sudo apt install xrdp
sudo adduser elasticourse
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Method 3: Using XFCE4 Desktop with tigerVNC server
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sudo apt install xfce4 xfce4-goodies
sudo nano  ~/.vnc/xstartup
 
        #!/bin/bash
        xrdb $HOME/.Xresources
        startxfce4 &
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Optional: Create system server so that VNCserver starts automatically on ubuntu reboot
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sudo nano /etc/systemd/system/vncserver@.service
 
        [Unit]
        Description=Remote desktop service (VNC)
        After=syslog.target network.target
 
        [Service]
        Type=simple
        User=ubuntu
        PAMName=login
        PIDFile=/home/%u/.vnc/%H%i.pid
        ExecStartPre=/usr/bin/vncserver -kill :%i > /dev/null 2>&1 || :
        ExecStart=/usr/bin/vncserver :%i -localhost no
        ExecStop=/usr/bin/vncserver -kill :%i
 
        [Install]
        WantedBy=multi-user.target
 
sudo systemctl daemon-reload
sudo systemctl start vncserver@1
sudo systemctl enable vncserver@1
sudo systemctl status vncserver@1