1、配置当前软件源，镜像非常大，所以首先要配置一下载速度快的软件源
http://fffo.blog.163.com/blog/static/2119130682014322104136601/
2、安装镜像软件 并 修改镜像参数文件
sudo apt-get install apt-mirror
sudo vim /etc/apt/mirror.list
############# config ##################
#
set base_path    /data/apt-mirror
#
# set mirror_path  $base_path/mirror
# set skel_path    $base_path/skel
# set var_path     $base_path/var
# set cleanscript $var_path/clean.sh
# set defaultarch  <running host architecture>
# set postmirror_script $var_path/postmirror.sh
# set run_postmirror 0
set nthreads     20
set _tilde 0
#
############# end config ##############
#	镜像 64位2进制包 （个人用足以）
deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
# 	镜像64位源码	（企业）
deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
#	镜像 32位2进制包 	（企业）
deb-i386 http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb-i386 http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb-i386 http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-i386 http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-i386 http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
# 	镜像32位源码  （我常常出现储物）
deb-i386-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb-i386-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb-i386-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-i386-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-i386-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multivers
clean http://mirrors.163.com/ubuntu/
这是我的source.list内容
set base_path /data/apt-mirror ――》 设置镜像放在哪个目录
set nthreads 20 ――》 启动20个线程下载
3、创建镜像根目录
mkidr /data/apt-mirror
4、开始镜像（支持断点续传，任何中断都不会照成影响）
sudo apt-mirror

定时执行上面的命令，可以达到定时同步远程仓库的效果

4、使用本地源
cd /etc/apt
sudo mv source.list source.list.bak
sudo vim source.list
加入如下内容
deb file:/data/apt-mirror/mirror/mirrors.163.com/ubuntu trusty main restricted universe multiverse
deb file:/data/apt-mirror/mirror/mirrors.163.com/ubuntu trusty-security main restricted universe multiverse
deb file:/data/apt-mirror/mirror/mirrors.163.com/ubuntu trusty-updates main restricted universe multiverse
deb file:/data/apt-mirror/mirror/mirrors.163.com/ubuntu trusty-proposed main restricted universe multiverse
deb file:/data/apt-mirror/mirror/mirrors.163.com/ubuntu trusty-backports main restricted universe multiverse


5、发布到局域网
创建一个软链接
ln -s /data/apt-mirror/mirror/mirrors.163.com/ubuntu/ /usr/local/apache/htdocs/ubuntu14.04

局域网中每个ubuntu用户都可以执行以下命令
cd /etc/apt
sudo mv source.list source.list.bak
sudo vim source.list
加入如下内容
deb http://192.168.41.191/ubuntu14.04/ trusty main restricted universe multiverse
deb http://192.168.41.191/ubuntu14.04/ trusty-security main restricted universe multiverse
deb http://192.168.41.191/ubuntu14.04/ trusty-updates main restricted universe multiverse
deb http://192.168.41.191/ubuntu14.04/ trusty-proposed main restricted universe multiverse
deb http://192.168.41.191/ubuntu14.04/ trusty-backports main restricted universe multiverse