CentOS 6

安裝xfce:
sudo rpm -ivh http://download.Fedoraproject.org/pub/epel/6/x86_64/epel-release-6-5.noarch.rpm  

yum search xfce  
yum groupinfo xfce
yum groupinstall xfce
//-----------------------------------
安裝freenx

yum install freenx

/usr/bin/nxsetup --install

vi /etc/nxserver/node.conf 

ENABLE_PASSDB_AUTHENTICATION="1" 

加入登入帳號 
sudo nxserver --adduser neo
sudo nxserver --passwd neo

sudo /usr/lib/nx/nxsetup --install --setup-nomachine-key 

sudo nxserver --restart   

查看nxserver狀態 
sudo nxserver --status

刪除原有session
ps -ef|grep nxagent
看到/usr/bin/nxagent -persistent -D -name NX - 使用者@hostname...的ID_number 
sudo kill nxagent的ID_number 

windows nx client部份:
把/var/lib/nxserver/home/.ssh/client.id_dsa.key下載到windows
在General->Server->Key...
匯入dsa_key 
import client.id_dsa.key 

General->Desktop->Settings->Application->Run the following command
打上/usr/bin/startxfce4 

General->Desktop->Settings->Options
選New Virtual Desktop