環境: REDHAT 5
1. 檢查是否安裝了VNC：
rpm -qa vnc-server
vnc-server-4.1.2-9.el5
沒安裝的話，安裝一下：
yum install vnc-server
2. 配置vncserver登錄密碼：
[root@Redhat ~]# vncserver
You will require a password to access your desktops.
Password:
Verify:
xauth: creating new authority file /root/.Xauthority
New 'Redhat:1 (root)' desktop is Redhat:1
Creating default startup script /root/.vnc/xstartup
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/Redhat:1.log
3. 配置vncserver啟動文件：
vi ~/.vnc/xstartup
修改後文件：
#!/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 &
4. 配置vncservers文件
vi /etc/sysconfig/vncservers
修改後文件：
# The VNCSERVERS variable is a list of display:user pairs.
#
# Uncomment the lines below to start a VNC server on display :2
# 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
# <URL:http://www.uk.research.att.com/archive/vnc/sshvnc.html>.
# Use "-nolisten tcp" to prevent X connections to your VNC server via TCP.
# Use "-nohttpd" to prevent web-based VNC clients connecting.
# Use "-localhost" to prevent remote VNC clients connecting except when
# doing so through a secure tunnel. See the "-via" option in the
# `man vncviewer' manual page.
# VNCSERVERS="2:myusername"
# VNCSERVERARGS[2]="-geometry 800x600 -nolisten tcp -nohttpd -localhost"
VNCSERVERS="1:root"
VNCSERVERARGS[1]="-geometry 1024x768 -nolisten tcp -nohttpd -localhost"
5. 關閉防火牆
service iptables stop
或者開放VNC端口：
/sbin/iptables -I INPUT -p tcp --dport 5801 -j ACCEPT
/sbin/iptables -I INPUT -p tcp --dport 5900:5903 -j ACCEPT
/etc/rc.d/init.d/iptables save
/etc/init.d/iptables restart
6. 殺掉當前進程:
vncserver -kill :1
vncserver -kill :2
...
7. 啟動vncserver
[root@Redhat ~]# vncserver
New 'Redhat:1 (root)' desktop is Redhat:1
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/Redhat:1.log
8. 通過浏覽器（JAVA）連接：
http://192.168.65.131:5801/
9. 通過VNC Viewer客戶端連接：
192.168.65.131:1
根據提示輸入前面配置的登錄密碼即可打開！
PS：可能出現的問題：
a、黑屏
在Linux裡安裝配置完VNC服務端，發現多用戶登陸會出現黑屏的情況，具體的現象為：
客戶端可以通過IP與會話號登陸進入系統，但登陸進去是漆黑一片，除了一個叉形的鼠標以外，伸手不見五指。
原因：用戶的VNC的啟動文件權限未設置正確。
解決方法：將黑屏用戶的xstartup（一般為：/home/用戶名稱/.vnc/xstartup）文件的屬性修改為755（rwxr-xr-x）。
b、vnc 能輸入數字，但不能輸入字母
原因：vnc server這邊會要求vnc viewer這邊OS的輸入法要和vnc server那邊OS的語言要一致。
解決方法：一般我們裝的Linux OS都是E文的，所以使用vnc viewer連入的時候，請關閉本地OS的中文輸入法，切換到英語就可以了。
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Dylan Presents.
