sunweaver's NET

For the Danish company Fleten.net [1] (with my X2Go [2] developer hat on) I have recently developed X2Go integration into the Unity Greeter [3] theme of LightDM [4] in Ubuntu. Fleten.net--as a Canonical Partner--is providing FOSS based IT-services to schools and municipalities in Denmark and Norway, based on Ubuntu and X2Go.

Today's quest: move 40GiB of disk space (a logical volume used as a virtual machine's file space) over 100MBit/s network infrastructure from one server machine to another.

Over 100MBit/s network the average speed of the network stream is ~ 10MByte per second. So this leads to:

• 100MByte -- 10secs
• 1.000MByte -- 100secs
• 40.000MByte -- 4000secs (i.e. 67 minutes)

How can this be sped up?

On the target host (this command set has to issued first):

In Octobre 2012, I visited UES (Ubuntu Enterprise Summit) 2012.10 in Copenhagen. Amongst other new features in Ubuntu 12.10 the new UCCS service at Canonical got introduced.

UCCS is a session broker[1] (as of Ubuntu 12.10 for RDP fullscreen sessions only) that provides login / session information to LightDM. In Quantal, the user can select a Remote Login Session as login option.

[1] https://uccs.landscape.canonical.com/

How UCCS works together with LightDM

As a proof-of-concept I have provided some packages ([1], [2]) that can be installed on Ubuntu 12.10 and allow hi-jacking of the (new) RDP remote login feature in Ubuntu 12.10 with X2Go.

[1] http://code.x2go.org/gitweb?p=lightdm-remote-session-x2go.git;a=summary
[2] http://code.x2go.org/gitweb?p=libpam-x2go.git;a=summary

The following simple steps have to be followed, to do the hi-jacking...

X2Go Server (Ubuntu precise):

 $ sudo add-apt-repository ppa:x2go/stable
 $ sudo apt-get update
 $ sudo apt-get install x2goserver-xsession

As part of the process of becoming a Debian Developer, I have set up this blog to document some of my Debian (and other FOSS) activities and ideas in public.

In Octobre 2012, I have been granted Debian Maintainer status. As of today I am in the middle of the NM process, a quality assertion of Debian for people who want to become a Member of Debian (i.e. reach Debian Developer status).

So, saying hello world with this first blog post...

light+love
sunweaver