检查vnc客户端和服务器是否已经安装:

[gavin@centos ~]$ rpm -q vnc vnc-server
package vnc is not installed
vnc-server-4.0-8.1

cent os 5已包含vnc的安装包  而且已经安装了 只是没开启服务而已

2. 将用户名称加入到配置文件:
(注:这里的“用户名”是指linux系统用户的名称)
[gavin@centos ~]# vi /etc/sysconfig/vncservers
#
# Uncomment the line below to start a VNC server on display :1
# as my 'myusername' (adjust this to your own). You will also
# need to set a VNC password; run 'man vncpasswd' to see how
# to do that.
#
# DO NOT RUN THIS SERVICE if your local area network is
# untrusted! For a secure way of using VNC, see
# .

# VNCSERVERS="1:myusername"

# VNCSERVERS="1:gavin 2:john" # use the method for more user
VNCSERVERS="1:gavin 2:root 3:root"     //这句就是添加用户 可以添加多人 用vcn客户端登陆时 ip后面用冒号加数字可使用不同名称登陆    例:192.168.1.189:1

# VNCSERVERARGS[1]="-geometry 800x600"
VNCSERVERARGS[1]="-geometry 1024x768"    //这句应该是分辨率 可以不要

3. 设置用户gavin的密码
[gavin@centos ~]$ vncpasswd
Password:
Verify:

4. 启动VNC服务                //这个必须 这样可以生成目录及文件
[gavin@centos ~]# /sbin/service vncserver start
Starting VNC server: 1:gavin [ OK ]

5.
[gavin@centos ~]$ cd ~/.vnc/
[gavin@centos .vnc]$ vi xstartup
#!/bin/sh

# Uncomment the following two lines for normal desktop:
#unset SESSION_MANAGER
#e xec /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" &
gnome-session &                 #这句很关键 设置xwindow 就是什么图形界面 如果没有的话就是text格式
#startkde & #kde desktop
#twm & #Text interface            #这是默认图形界面  必须注释掉

6. 重启vncserver
[gavin@centos ~]# /sbin/service vncserver restart

Shutting down VNC server: 1:gavin [ OK ]
Starting VNC server: 1:gavin [ OK ]

7. 查看防火墙
先查看端口 服务端口   netstat -ntlp
把防火墙端口打开      vi /etc/sysconfig/iptables
重启服务    service iptables restart
然后连接即可

7. Windows登陆到VNC Server
启动:vnc-E4_2_8-x86_win32_viewer.exe
输入:
server:192.168.1.13:1 (这里,我的VNC服务器在192.168.1.13上,用的是Display1(对应gavin帐号))
Encryption:Let Server Choose(Default)