DD Original Ubuntu Image to Oracle ARM VM and Install Lxde desktop and xRDP with Sound Forwarding

Oracle Ubuntu 20.04 has a problem to enable xRDP port based on my testing. Connecting to port 3389 from remote does not work, although telneting port from local is showing open. To make things easier, I decided to try to DD an clean Ubuntu to it. The step to DD an original Ubuntu image is an optional step. If you do not mind using Oracle Ubuntu, it will still work, although you will have to remove all iptables rules, which you can find out from this post: Install xRDP with Ubuntu Desktop on Oracle ARM VM

DD Original Ubuntu Image 20.04 to Oracle Cloud ARM VM

We will need a clean Ubuntu installation to start this lab. If you are using Oracle Ubuntu Template, the process in this post might not work as expected. At least Oracle Ubuntu template does not work for me.

You can use following command to change your ARM VM Oracle Ubuntu OS to a clean Ubuntu 20.04 OS. You also can customize your own root password and own SSH port. 

bash <(wget --no-check-certificate -qO- 'https://raw.githubusercontent.com/MoeClub/Note/master/InstallNET.sh') -u 20.04 -v arm64 --mirror http://archive.ubuntu.com/ubuntu -p "Your Own Root Password" -port "Your Own Customized SSH Port"

Following is the one I were using

bash <(wget --no-check-certificate -qO- 'https://raw.githubusercontent.com/MoeClub/Note/master/InstallNET.sh') -u 20.04 -v arm64 --mirror http://archive.ubuntu.com/ubuntu -p "netsecP@55w0rd" 

Putty connect to the public ip using following username and password:

• Username : root
• Password: netsecP@55w0rd

After DD, you will find all monitoring data (CPU, Memory, Disk, Network, Load) will be gone since there is no built-in agent installed on the VM.

Run Script to Install Lxde Desktop and xRDP with Sound support

Github address: https://github.com/51sec/xrdp4arm

One command to run it from your Oracle Cloud ARM machine after you completed DD task from pervious step.

wget https://cdn.jsdelivr.net/gh/51sec/xrdp4arm@main/install.sh && bash install.sh

The install.sh Code (English version):

#/bin/bash
# Ubuntu20 desktop configuration (arm supported)

# quit immediately if there is an error
set -e
# ...
set -x

# Xrdp
function install_xrdp() {
	apt-get install -y xrdp
} 

# install desktop environment lxde. 
function install_desktop_env() {
	DEBIAN_FRONTEND=noninteractive apt-get install -y lxde
}

# Xrdp PulseAudio
function install_xrdp_pa() {
	apt-get install -y git libpulse-dev autoconf m4 intltool build-essential dpkg-dev libtool libsndfile1-dev libspeexdsp-dev libudev-dev pulseaudio
	cp /etc/apt/sources.list /etc/apt/sources.list.u2ad
	sed -Ei 's/^# deb-src /deb-src /' /etc/apt/sources.list
	apt-get update -y
	apt build-dep pulseaudio -y
	cd /tmp
	apt source pulseaudio
	pulsever=$(pulseaudio --version | awk '{print $2}')
	cd /tmp/pulseaudio-$pulsever
	# ./configure --without-caps
	./configure
	git clone https://github.com/neutrinolabs/pulseaudio-module-xrdp.git
	cd pulseaudio-module-xrdp
	./bootstrap
	./configure PULSE_DIR="/tmp/pulseaudio-$pulsever"
	make
	cd /tmp/pulseaudio-$pulsever/pulseaudio-module-xrdp/src/.libs
	install -t "/var/lib/xrdp-pulseaudio-installer" -D -m 644 *.so
	# systemctl restart dbus
	# systemctl restart pulseaudio
	systemctl restart xrdp
	# Issue: https://github.com/neutrinolabs/pulseaudio-module-xrdp/issues/44
	fix_pa_systemd_issue
}

# resolve PA no sound issue
# Issue: https://github.com/neutrinolabs/pulseaudio-module-xrdp/issues/44
function fix_pa_systemd_issue() {
mkdir -p /home/rdpuser/.config/systemd/user/
ln -s /dev/null /home/rdpuser/.config/systemd/user/pulseaudio.service
mkdir -p /home/rdpuser/.config/autostart/
cat <<EOF | \
  sudo tee /home/rdpuser/.config/autostart/pulseaudio.desktop
[Desktop Entry]
Type=Application
Exec=pulseaudio
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name[en_US]=pulseaudio
Name=pulseaudio
Comment[en_US]=pulseaudio
Comment=pulseaudio
EOF
chown -R rdpuser /home/rdpuser/.config/
chmod -R 755 /home/rdpuser/.config/
}

# create desktop user
function create_desktop_user() {
useradd -s /bin/bash -m rdpuser
usermod -a -G sudo rdpuser
echo "rdpuser ALL=(ALL) ALL" >> /etc/sudoers
echo "rdpuser_password
rdpuser_password
" | passwd rdpuser
}

# Xrdp environment configuration
function xrdp_conf() {
touch /home/rdpuser/.Xclients
echo "lxsession" > /home/rdpuser/.Xclients
chmod a+x /home/rdpuser/.Xclients
# sudo sed -e 's/^new_cursors=true/new_cursors=false/g' -i /etc/xrdp/xrdp.ini
cp /etc/xrdp/xrdp.ini /etc/xrdp/xrdp.ini.backup.u2ad
echo "$xrdp_config_base64" | base64 -d > /etc/xrdp/xrdp.ini
cat <<EOF | \
  sudo tee /etc/polkit-1/localauthority/50-local.d/xrdp-color-manager.pkla
[Netowrkmanager]
Identity=unix-user:*
Action=org.freedesktop.color-manager.create-device
ResultAny=no
ResultInactive=no
ResultActive=yes
EOF
systemctl restart xrdp
systemctl restart polkit
}

# desktop environment configuration
function desktop_env_conf() {
	# remove network icon
	apt-get remove -y network-manager-gnome
	# chrome has no arm64 version, install chromium
	apt-get install -y chromium-browser
}



apt-get update -y
apt-get install -y sudo screen

# create a desktop user 
create_desktop_user

# Install desktop environment
install_desktop_env

# install XRDP
install_xrdp

# install XRDP PA
install_xrdp_pa

# XRDP Environment Configuration
xrdp_config_base64="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"
xrdp_conf

# Desktop Environment Configuration
desktop_env_conf

apt-get autoremove -y

echo "Install Done!"
echo "Now you can reboot and connect port 3389 with rdp client"
echo "Note: chromium-browser is not displayed on the desktop, please start it manually if necessary"
echo "Default Username: rdpuser"
echo "Default Password: rdpuser_password"

Original Chinese Version from https://gist.github.com/jianping0754/869b3de0e79c738f368d38217aa233cf

Following script is a copy from the original one for documentation purpose.

Fix xRDP port 3389 not on tcp v4 interface issue

Unfortunately, after ran that script, I found it is still not able to connect to 3389 port.

Checking 3389 port:

• apt install net-tools
• netstat -na | grep 3389

The problem is 3389 port only binding to ipv6 interface, not on ipv4. But that can be changed using following method by modifying the xrdp configuration file:

nano /etc/xrdp/xrdp.ini

Change xrdp.ini file ‘s port configuration from “port=3389” to “port=tcp://:3389”. 

[Globals]
; xrdp.ini file version number
ini_version=1

; fork a new process for each incoming connection
fork=true

; ports to listen on, number alone means listen on all interfaces
; 0.0.0.0 or :: if ipv6 is configured
; space between multiple occurrences
;
; Examples:
;   port=3389
;   port=unix://./tmp/xrdp.socket
;   port=tcp://.:3389                           127.0.0.1:3389
;   port=tcp://:3389                            *:3389
;   port=tcp://<any ipv4 format addr>:3389      192.168.1.1:3389
;   port=tcp6://.:3389                          ::1:3389
;   port=tcp6://:3389                           *:3389
;   port=tcp6://{<any ipv6 format addr>}:3389   {FC00:0:0:0:0:0:0:1}:3389
;   port=vsock://<cid>:<port>
port=tcp://:3389

After that, you will need to restart the xrdp service and you can use following commands to verify 3389 port:

• systemctl xrdp status
• service xrdp restart

RDP into machine 

Using Windows MSTEC Remote Desktop Connection tool to connect to your Uubuntu VM’s public ip address:

There will be no sound from root account. But if you are using default rdpuser account to log in, the sound is supported. 

echo "Default Username: rdpuser"
echo "Default Password: rdpuser_password"

If you are using Oracle’s Ubuntu image, you will have connectivity issue to the port 3389 since built-in iptables will block the external connection. Testing from local will still work, but not from remote.