FreeNX : How to set up session shadowing ( Linux Mint 12 )

The session shadowing offers you to share the same NX session with multiple users.

For example , you and your coworkers/customers can view/operate the same NX session when having web-based conferences/meetings/demonstrations etc.

[ set up NX session shadowing ]

- NX server

# egrep -i shadow server.cfg | egrep -v ^# EnableSessionShadowing = "1" EnableInteractiveSessionShadowing = "1" EnableSessionShadowingAuthorization = "1"

- EnableSessionShadowing

enable or disable session shadowing

- EnableInteractiveSessionShadowing

1 : share display ( operate via both the master session and shadowing sessions )

0 : view only ( operate via only the master session )

- EnableSessionShadowingAuthorization

1 : need to get an approval from the master session before establishing shadowing sessions

0 : no need to get an approval

# /etc/init.d/nxserver restart

- NX client

Create a new session for the session shadowing.

Enter any session name and then click “Configure”

Choose “Shadow” and click “OK”

Let’s try the NX session shadowing

At first , connect to the NX server as the master session ( not Shadowing sessions )

The difference between the master and shadow sessions is Desktop setting of NX client.

Master Session : Desktop : Unix , GNOME

Shadow Session : Desktop : Shadow

- NX client : Master session

- establish the master session ( user test1 )

- establish the shadow session ( user test2 )

You will be asked which the session (  master session or new ) you want to use.

Choose the master session and click Attach.

Requesting the approval to establish the session shadowing.

On the master session display , pop-up will be appeared as below.

Click Accept.

done!

You can send message like this:

You can disconnect the shadowing session from the master session.