前几天突发奇想，想给服务器装个图形界面然后搭建WebIDE环境，就可以随时随地开发了，找了好久终于在论坛找到一位大大的帖子：
然后发现日期是2015年1月的，不以为意，按照步骤安装，总是提示
No packages in any requested group available to install or update
于是乎自己折腾，终于搭建vnc，废话不多说，上教程：
首先执行这一句防止系统文件被修改
chattr +i /etc/resolv.conf
然后安装tigervnc
yum install -y tigervnc tigervnc-server
接下来很多人卡在这一步（No packages in any requested group available to install or update）
原因是找不到可安装的包
所以大家根据自己的服务器执行下面命令
yum grouplist
然后查看自己的服务器支持安装哪些包，比如我的
Available Environment Groups:
Minimal Install
Compute Node
Infrastructure Server
File and Print Server
MATE Desktop
Basic Web Server
Virtualization Host
Server with GUI
GNOME Desktop
KDE Plasma Workspaces
Development and Creative Workstation
Available Groups:
Additional Development
Backup Client
Backup Server
Base
CIFS file server
Compatibility libraries
Console internet tools
Debugging Tools
Desktop
Desktop Debugging and Performance Tools
Desktop Platform
Desktop Platform Development
Development tools
Dial-up Networking Support
Directory Client
Directory Server
E-mail server
Eclipse
Educational Software
Electronic Lab
Emacs
FCoE Storage Client
FTP server
Fedora Packager
Fonts
General Purpose Desktop
Graphical Administration Tools
Graphics Creation Tools
Hardware monitoring utilities
Haskell
Infiniband Support
Input Methods
Internet Applications
Internet Browser
Java Platform
KDE Desktop
............
注意！
查看自己的服务器里中Available Environment Groups下面有哪些可以安装的Desktop，比如我的
Available Environment Groups:
Minimal Install
Compute Node
Infrastructure Server
File and Print Server
MATE Desktop
Basic Web Server
Virtualization Host
Server with GUI
GNOME Desktop
KDE Plasma Workspaces
Development and Creative Workstation
里面有 GNOME Desktop
于是安装Gnome
yum groupinstall GNOME Desktop
这一步安装需要点时间，中间有提示直接输入y 然后回车，直到出现complete
然后启动vnc服务
vncserver
第一次执行会提示输入密码，然后再验证输入一次回车，vnc服务端就算搭建好了！
接下来在手机或者电脑上下载vnc客户端，输入你的IP:5901连接
然后输入密码就可以看到你的服务器界面了！
附图
搭建好的界面