Custom OS Template (Linux)

Although NobleProg maintains a number of popular Linux distros for DaDesktop, there may be an occasion when a specific distro that is not available is required. NobleProg are happy to support this for most mainline Linux distros. Please tell us where to download the ISO file and which server you want to publish the Custom OS template.

After we download the ISO file to the server, you will be able to see it under Admin Menu->OS IMAGES->ISO FILES under your account.

Then you can prepare the template under Admin Menu->OS IMAGES->CUSTOM OS TEMPLATES

Please follow this guide carefully, and complete all the steps as otherwise full DaDesktop operation is likely not to work.

Install OS
Set default username to "nobleprog"; Password to "nobleprog"
Set "nobleprog" account to be Auto Login
Use NobleProg Wallpaper
Install X11VNC, using your package manager is usually the best approach

Configure X11VNC

make sure X11VNC installed
run command sudo -i to open root shell

run below command which allows X11VNC to auto-start on reboot

cat > /etc/xdg/autostart/x11vnc.desktop <<EOF 
[Desktop Entry] 
Type=Application 
Exec=/usr/bin/x11vnc -N -no6 -rfbportv6 -1 -allow 10.0.3.1 -nopw -shared -alwaysshared -forever -repeat -nowireframe -noscr -nocursorshape -skip_lockkeys -cursor_drag -grab_buster -deferupdate 10 -speeds 6000,5000,20 -afteraccept announce-vnc-users.sh -gone announce-vnc-users.sh 
Hidden=false 
X-MATE-Autostart-enabled=true 
X-MATE-AutoRestart=true 
Name[en_US]=X11VNC 
Name=X11VNC 
Comment[en_US]=Share desktop over VNC 
Comment=Share desktop over VNC 
EOF

Create desktop notify script by running below commands

cat > /usr/local/bin/announce-vnc-users.sh </dev/null
notify-send -a x11vnc "VNC users connected: $RFB_CLIENT_COUNT"
EOF
chmod +x /usr/local/bin/announce-vnc-users.sh

Check firewall setting, make sure TCP port 5900 is open
Disable sudo password ( recommended )
reboot
Verify success
When connect, the URL, if changed to a new URL with token query parameter, then you are good to go. This means X11VNC is working. And the text box at the bottom left of the screen, which is used for copy/paste between your own desktop and virtual desktop should now be working.

Testimonials

My feedback on DaDesktop is straightforward: I simply fell in love.
My setup was: Notebook, dadesktop, Ipad, Audio/Video (other external
application). Everything worked like a charm. It was easy to use, i loved
easily make every attendee to a presenter, the ease of deploying the machines and I the VNC experience was amazing.

But the best was the feedback of the attendees. One said: I had never
thought to have such a good experience for an online training. And a lot
of said: "What i loved most, that i saw my screen and the screen of the trainer just under one another. That was amazing and that help to always be in sync with the trainer". (An absolutely killer feature)

Jochen, IT-Trainer

Course: Linux, MariaDB/MySQL, GIT, Berlin, Germany

The exercise VMs were working quite well.

Philippe DEPRUGNEY - Synchronoss Software Ireland Limited

Course: Docker and Kubernetes

Resources preparation (VMs and such) and the ability of trainer to answer questions

Synchronoss Software Ireland Limited

Course: Docker and Kubernetes

I liked the use of VM during training.

Coventry University

Course: ROS: Programming for Robotics

Michal is a knowledgeable and experienced trainer. Its good to have trainers who have industry experience. I also liked the hands-on exercises with remote VMs.

NIIT (USA) Inc.

Course: PostgreSQL Advanced DBA

The VM I liked very much The Teacher was very knowledgeable regarding the topic as well as other topics, he was very nice and friendly I liked the facility in Dubai.

Safar Alqahtani - Elm Information Security

Course: Big Data Analytics in Health

Remote really worked! Plus, Luke was a great guy. I think me typing in what he had done into my VM was good reinforcement.

Jeff Butters

Course: Test Automation with Selenium

Exercises and trainer's own book with information covered in the course, it helped me going over pieces of code and bits of knowledge I had to refer to later. The VM provided proved incredibly beneficial as well.

QAD Precision

Course: Advanced Selenium

The course was Very thorough. The VMs we used for the exercises were great.

The Walt Disney Company

Course: PostgreSQL for Administrators

The VM I liked very much The Teacher was very knowledgeable regarding the topic as well as other topics, he was very nice and friendly I liked the facility in Dubai.

Safar Alqahtani - Elm Information Security

Course: Big Data Analytics in Health

Remote really worked! Plus, Luke was a great guy. I think me typing in what he had done into my VM was good reinforcement.

Jeff Butters

Course: Test Automation with Selenium

The fact that all the data and software was ready to use on an already prepared VM, provided by the trainer in external disks.

vyzVoice

Course: Hadoop for Developers and Administrators

The trainer is very skilled and the virtual desktop environment worked fine.

NLR; NLR

Course: Drone Programming with ArduPilot

Aruna Sharma - Rockall technologies

Course: Test Automation with Selenium and Jenkins

I liked the setup of the virtual machines, as it was easy and quick to start with, saving a lot of time. I also liked the level of interaction and he definitely had a lot of experience with both working with big data and giving training.

ING

Course: Apache NiFi for Administrators - Bespoke

I like pace of the training. It was good and we were able to cover many aspects of programming language. Trainer was able to show many applications of Python in very informative way. Trainer sent to us many scripts and micro-programs for furher reference which is very useful. I like, that we started training with some technical remarks and setting up virtual environment.

Bartosz Rosiek - GE Medical Systems Polska Sp. Zoo

Course: Python Programming

I liked that Virtual machines ensure everyone works in the same environment.

Leaseweb

Course: angular 6

I liked the covering of virtual environments, as well as the exercises and demos in IPython console shell.

MCKINSEY KNOWLEDGE CENTER POLAND SP. Z O.O.

Course: Python: Automate the Boring Stuff - dedicated

The deep knowledge of the trainer Robert about the topics (Yocto Project, embedded systems, etc.). He's able to answer virtually any quastion you ask him about these topics and he has a really deep background.

ZITRO LABORATORY

Course: Yocto Project

I really enjoy having a virtual PC online, I can do exercises whenever I want

Dongfu Li - Northforge Innovations Inc

Course: Yocto Project

Gives a good overview of Cassandra. Especially the virtual box training environment is nice also for later use.

Swisscom AG

Course: Cassandra Administration

I enjoyed the dynamic interaction and “hands-on” the subject, thanks to the Virtual Machine, very stimulating!.

Philippe Job

Course: Data Analysis with Hive/HiveQL

I thought the pacing was perfect. Good amount of interaction considering it was done over the computer. Lots of interaction available by connecting to a virtual machine and following along. Thought the project we completed had very clean code and gave me a good idea of how something like this should be compiled. Will be able to apply what I learned to the workplace.

Chris Dingwell - STI Technologies

Course: Wprowadzenie do Selenium

I liked trainer knowledge, convenient setup (virtual machines), trainer adaptability. Good Training.

Kevin Eeckman - SOCIETE GENERALE

Course: AngularJS Basics