List current xvnc sessions in xrdp so you can reconnect to your old one

bgstack15 — Tue, 16 Jan 2018 13:34:27 GMT

tl;dr

{ echo "user pid Xdisplay port"; { ps -ef | awk '/Xvnc :[[:digit:]]+/ {print $1,$2,$9}' | while read tu tpid tvnc; do sudo netstat -tlpn | awk -v "tpid=${tpid}" '$0 ~ tpid {print $4;}' | sed -r -e 's/^.*://;' -e "s/^/${tu} ${tpid} ${tvnc} /;" ; done ; } | sort -k3 ; } | column -c4 -t

The story

I connected to a gnome session on a terminal server, and disconnected. I wanted to reconnect to my current session, but apparently I got a new X session. After some research, I learned you can configure xrdp to prompt for the port number so you can get back to the previous session. However, then you have to know what to type in. After doing a manual ps and netstat, I found some useful numbers. What I needed to enter was the tcp port number, so 5919.

The explanation

You can have an entry in the /etc/xrdp/xrdp.ini file like the following block.

[xrdp8]
name=Reconnect
lib=libvnc.so
username=ask
password=ask
ip=127.0.0.1
port=ask

When you connect over RDP, select the "Reconnect" module and type in a port number, which you can find from the output of the oneliner.

{ echo "user pid Xdisplay port"; { ps -ef | awk '/Xvnc :[[:digit:]]+/ {print $1,$2,$9}' | while read tu tpid tvnc; do sudo netstat -tlpn | awk -v "tpid=${tpid}" '$0 ~ tpid {print $4;}' | sed -r -e 's/^.*://;' -e "s/^/${tu} ${tpid} ${tvnc} /;" ; done ; } | sort -k3 ; } | column -c4 -t


user       pid    Xdisplay  port
mjohnso    11448  :17       5917
mjohnso    12939  :18       5918
bgstack15  1219   :19       5919

References

Weblinks