我现在用的是一个内存256，512突发的内存，安装GNOME KDE有点吃不消，所以装了个轻量级的桌面，即Fluxbox。
第一步：重转系统，我选用的是CentOS
第二步：
yum install yum-priorities #安装yum-priorities
第三步：
vi /etc/yum.repos.d/CentOS-Base.repo #把红色部分加到每个段落的最后
[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
priority=1
#released updates
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
priority=1
#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
#baseurl=http://mirror.centos.org/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
priority=1
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
priority=1
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
priority=2
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
#baseurl=http://mirror.centos.org/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
priority=2
第四步：
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm #下载RpmForge，32位系统选这个
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm #64位系统选这个
第五步：
rpm -import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt #导入Key
第六步：
rpm -K rpmforge-release-0.5.1-1.el5.rf.i386.rpm #验证包的有效性，32位系统选这个
rpm -K rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm #64位系统选这个
第七步：
rpm -i rpmforge-release-0.5.1-1.el5.rf.i386.rpm #安装RpmForge，32位系统选这个
rpm -i rpmforge-release-0.5.1-1.el5.rf.x86_64.rpm #64位系统选这个
第八步：
vi /etc/yum.repos.d/rpmforge.repo #最后面加上 priority=11（红色部分）
### Name: RPMforge RPM Repository for Red Hat Enterprise 5 - dag
### URL: http://rpmforge.net/
[rpmforge]
name = Red Hat Enterprise $releasever - RPMforge.net - dag
baseurl = http://apt.sw.be/RedHat/el5/en/$basearch/rpmforge
mirrorlist = http://apt.sw.be/redhat/el5/en/mirrors-rpmforge
#mirrorlist = file:///etc/yum.repos.d/mirrors-rpmforge
enabled = 1
protect = 0
gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmforge-dag
gpgcheck = 1
priority=11
第九步：
yum -y install vnc vnc-server firefox x11-xorg #安装VNC
第十步：
vncserver #首次欲行VNC，设置下密码第
十一步：
pkill -9 vnc #终止VNC进程
rm -rf /tmp/.X1* #清除下临时文件
vi /root/.vnc/xstartup #把最后的那行 “twm &”修改成 “exec /usr/bin/fluxbox”,保存退出
第十二步：
vncserver #启动VNC服务最后就是如何登陆远程桌面了，要用到RealVNC viewer这个软件，见本文最后的下载地址。
安装后启动程序
RealVNC viewer
服务器地址那填写：你的主机名:1，然后确定，输入安装VNC时设置的密码，就能看到桌面了。
注：以上图片上传到红联Linux系统教程频道中。
最重要的是资源使用情况。