创建repo

创建镜像服务器

1. 软件安装：
   

yum -y install createrepo

yum –install httpd

yum install rsync

1. 启动服务
   

/etc/init.d/httpd start

创建路径

mkdir -pv /var/www/html/centos/6.8/os/x86_64/

1. 同步仓库
   

rsync rsync://mirrors.kernel.org/centos/6.8/os/x86_64/ /var/www/html/centos/6.8/os/x86_64/

rsync –list-only rsync://sjtu.edu.cn/centos/6.8/os/x86_64/

rsync -avz rsync://mirrors.kernel.org/centos/6.8/os/x86_64/ /var/www/html/centos/6.8/os/x86_64/

rsync -avz rsync://mirrors.yun-idc.com/centos/6.8/os/x86_64/ /var/www/html/centos/6.8/os/x86_64/

1. 关闭防火墙
   

/etc/init.d/iptables stop

1. 关闭sellinux
   

setenforce 0

1. 配置防火墙及nat
   

Iptables -t nat -A POSTROUTING -s 10.8.0.0/255.255.255.0 -o eth0 -j MASQUERADE

rsync://mirrors.kernel.org/centos/7.3.1611/os/x86_64/ /var/www/html/ centos/7.3.1611/os/x86_64/

rsync –avz /centos/7.3.1611/os/x86_64/ /var/www/html/centos/7.3.1611/os/x86_64/

Code:

iptables -t nat -A POSTROUTING -s 172.16.31.0/24 -o eth1 -j MASQUERADE

-s 表示源网络，即内网地址；-o 为连接因特网的接口

如果主机上启用了防火墙，需加上下面两句：

Code:

iptables -A FORWARD -s 172.16.31.0/24 -o eth1 -j ACCEPT
iptables -A FORWARD -d 172.16.31.0/24 -m state –state ESTABLISHED,RELATED -i eth1 -j ACCEPT

分别表示：来自内网、出口为eth0的包接受转发；来自eth0、目标地址为内网，且连接状态为建立、相关的包接受转发.

rsync -a /media/cdrom/ /var/www/html/centos/5.11/os/x86_64

centos/5.11/os/x86_64

rsync -avz rsync:/ /sjtu.edu.cn /centos/5.11/os/x86_64/ /var/www/html/centos/5.11/os/x86_64/ –exclude=repodata