[Bio-Linux] Several concurrent users to BioLinux8 as Headless VM on Ubuntu14.04?

[Xavier de Pedro]

Hi:

This is my first message in this list, and let me start with a "thank
you" for such nice and useful project that "BioLinux" is.
Congratulations for the quality of the product achieved so far!

We are planning to use BioLinux for some hands-on work training sessions
for a Bioinformatics course we teach in a Masters Degree at University.
So far we have prepared a modified version of BioLinux8 virtual box
appliance (.ova) so that it includes the extra packages that we plan to
use in our course. So far, so good, for students with recent computers
(so that they can run the whole thing inside a virtualbox-powered
virtual machine in their computers).

But we are concerned expecting to have some students with old-ish
computers (from the 60 students enrolled in the course), and we did
setup another virtualbox-powered virtual machine with BioLinux8 on a
"Headless" server so that those students (5 or so?, we presume) will be
able to connect through RDP to one of our servers to use BioLinux there.
We followed these instructions for the setup:
https://www.howtoforge.com/vboxheadless-running-virtual-machines-with-virtualbox-4.3-on-a-headless-ubuntu-14.04-lts-server


However, only one RDP connection seems to be allowed at a time. I tried
these tweaks I could find around:

  "Ubuntu 14.04 – Gnome Classic alike Desktop for XRDP : MATE-Desktop"
  http://c-nergy.be/blog/?p=5382
 
so that some new .xsession is created at the host for each new user
attempting to connect to the guest BioLinux8 through the host Ubuntu
14.04, but I didn't succeed... I presume the changes needed to have that
.xsession created for vboxheadless-version of the BioLinux are different
from the standard changes to have several RDP connections working
concurrently.

Any clue anyone?

Thanks in advanced!

Xavier



-- 
Xavier de Pedro Puente, Ph.D.
Statistics and Bioinformatics Unit (UEB) 
Vall d'Hebron Research Institute (VHIR)
Passeig de la Vall d'Hebron, 119-129
08035 Barcelona. Catalonia. Spain
 
Ph. +34 934894007 / Fax +34 934894015 
xavier.depedro at vhir.org
http://ueb.vhir.org

Collaborate: http://www.yoinvestigo.org - http://www.faigrecerca.org