Using tsclient of Ubuntu to connect to Centos via vnc protocol

environment:
Server: CentOS 5.6 64bit
Client: Ubuntu 11.04 64bit
TOOL:terminal server client
protocol:vnc

Server Part:

1、Check if vnc server is installed.
[root@localhost ~]# rpm -qa|grep vnc
vnc-server-4.1.2-14.el5_6.6
gtk-vnc-0.3.8-3.el5
gtk-vnc-python-0.3.8-3.el5

If not,install it.
From source:
#yum install vnc-server*

From disc:
#rpm -ivh vnc*

2、configure your vnc server
#vi /root/.vnc/xstartup
remove the comment before line 'unset SESSION_MANAGER' & line 'exec /etc/X11/xinit/xinitrc';
Add a line 'gnome-session';
the whole file as follow:
#!/bin/sh

# Uncomment the following two lines for normal desktop:
unset SESSION_MANAGER
exec /etc/X11/xinit/xinitrc

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
#xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
#twm &
gnome-session

 

#vncserver

to set the passwd

 

3、configure your vncservers file

#vi /etc/sysconfig/vncservers

Add following lines:

VNCSERVERS="1:oracle "
VNCSERVERARGS[1 ]="-geometry 1024x768"

VNCSERVERS="2:root "
VNCSERVERARGS[2 ]="-geometry 1024x768"

 

##tip: Every user can start more than one server; when vnc server is started, A sequence number is

assigned to the connection, such as xxx.xxx.xxx.xxx:1; When configure vncservers file , the number

should match the user.

 

Restart your vnc server

#/etc/init.d/vncserver restart

 

4、configure the firewall

##tip:the begining port to support vnc server service is 5901 and 5901 is for screen 1,5902 for screen 2 and so on

 

#vi /etc/sysconfig/iptables

ADD:

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 5901 -j ACCEPT

 

Restart your firewall

#/etc/init.d/iptables restart

 

Your VNC server is working now.

 

Client Part:

 

It's easy for client part, make sure you can connect to your vnc server via ssh tunnel.

To check if you can connect to the right port:

$ telnet XXX.XXX.XXX.XXX 5901

If you see:

Trying XXX.XXX.XXX.XXX...
Connected to XXX.XXX.XXX.XXX.
Escape character is '^]'.
RFB 003.008
then the port 5901 is open. you can connect the vnc server.

If not, you should check your ssh connection.

Try:$ssh [e-mail] to login.

 

$sudo apt-get install vncviewer

start your tsclient;

fill the computer name using :xxx.xxx.xxx.xxx:1

fill the protocol:vnc

fill the user name: remote server's user name (should match the screen no.)

 

OK，it works.