> 1. We are not able to connect same or specify session from another
> PC or Thin client.
You mean you can't connect to port 3389 with an rdesktop client? Or do you
connect and get a login screen but can't proceed from there?
> 2. Reconnect issue.
Can you give more details? The default settings seem to change from version
to version but (IMHO) the current version does the right thing - one session
per user. If you connect as a user with an existing session you will get
the previous session back.
If you have the default version from Ubuntu 12.04 (0.6 iirc) then you will
want to get a newer version.
> 4. How to monitor active sessions in xrdp?
There are quite a few ways to look at this, maybe look at established
sockets on port 3389 with netstat -pan and track it back to the X server
process? If I get a few minutes today (and nobody has a good answer) I'll
take a look.