目前使用Ubuntu14.0.4的环境
1.搭建了一个ubuntu server，结果发现不能联网，可以ping通内网，ping不通外网。
结果是网关配置问题，不是常规的.1居然是.254
vim /etc/network/interfaces
address 192.168.10.2
network 255.255.255.0
gateway 192.168.10.254 (开始配置了192.168.10.1)
vim /etc/resolveof/resolve.conf.d/base
namesever XX.XX.XXX.XXX (配置DNS服务器)
2.更改软件源，提高下载速度
首先备份默认源：
sudo cp /etc/apt/sources.list /etc/apt/sources.list.old
清空默认源：
sudo cat /dev/null > /etc/apt/sources.list
添加源：
sudo vim /etc/apt/sources.list
一般个人习惯选择两三个源
#网易 Ubuntu 源
deb http://mirrors.163.com/ubuntu/ precise main universe restricted multiverse
deb-src http://mirrors.163.com/ubuntu/ precise main universe restricted multiverse
deb http://mirrors.163.com/ubuntu/ precise-security universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ precise-security universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ precise-updates universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ precise-proposed universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ precise-proposed universe main multiverse restricted
deb http://mirrors.163.com/ubuntu/ precise-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ precise-backports universe main multiverse restricted
deb-src http://mirrors.163.com/ubuntu/ precise-updates universe main multiverse restricted
阿里云；
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
最后更新一下 apt-get update
3.安装ssh
4安装telnet
5安装httpd
6.ubuntu 实现利用共享文件夹实现文件共享，方便在window下修改，在linux下进行编译开发。
vmware 虚拟机下 菜单栏 虚拟机-》设置-》选项-》共享文件夹-》添加 （选择共享文件）-》下一步-》完成
在虚拟机中 /mnt/hgfs/下会看到共享文件