Then create the user; remember setting to his password to "chessman123"
sudo adduser binsun
Edit the user mapping, unless you're using a database to store user logins.
sudo vi /etc/guacamole/user-mapping.xml
Create the entry like below, one for vnc and one for ssh.
<!-- User for binsun -->
<authorize username="binsun" password="chessman123">
<!-- First authorized connection -->
<connection name="vnc">
<protocol>vnc</protocol>
<param name="hostname">localhost</param>
<param name="port">5904</param> <!-- Edit this -->
<param name="password">qwe123</param> <!-- Password for vncserver -->
<param name="encodings">zrle ultra copyrect hextile zlib corre rre raw</param>
</connection>
<!-- Second authorized connection -->
<connection name="ssh">
<protocol>ssh</protocol>
<param name="hostname">localhost</param>
<param name="port">22</param>
<param name="username">binsun</param> <!-- Edit this -->
<param name="password">chessman123</param> <!-- Edit this -->
</connection>
</authorize>
I assume the SSH service is already running on port 22, so that should already work.
We just need to start the VNC service listening in on port 5903.
sudo /etc/init.d/tomcat7 restart
Restart hosting service so it loads the updated user-mapping.xml.
If logging in fails, check the log for login attempts.
tail -f /var/log/tomcat7/catalina.out
In the newly created user's home directory, create a file called xstartup. This file is a script that gets run when the vncserver starts. Guacamole starts the vncservice.
First we switch to that user.
su binsun
Then create the startup script
mkdir ~/.vnc
chmod 700 ~/.vnc
cd ~/.vnc
vi xstartup
Put these in.
#!/bin/sh
xrdb $HOME/.Xresources
xsetroot -solid grey
#x-terminal-emulator -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
#x-window-manager &
# Fix to make GNOME work
export XKL_XMODMAP_DISABLE=1
#/etc/X11/Xsession
startxfce4
And make this excutable.
chmod +x xstartup
While we're still logged in as the user, start the vncserver
vncserver :4
This creates the service listening on 5904 port. You should be able to see it.
nmap -Pn localhost
Starting Nmap 6.40 ( http://nmap.org ) at 2015-10-19 21:40 EDT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00055s latency).
Not shown: 988 closed ports
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
631/tcp open ipp
3306/tcp open mysql
5902/tcp open vnc-2
5903/tcp open vnc-3
5904/tcp open unknown <------- this is it
6002/tcp open X11:2
6003/tcp open X11:3
6004/tcp open X11:4
6005/tcp open X11:5
8080/tcp open http-proxy
If you can't get vnc started, look at this log.
tail -f /var/log/syslog