搭建内网yum服务器

内网服务器通过一台可以连外网的服务器做代理实现yum源本地化，这里列举常用的centos和epel源，以阿里云镜像源为例

centos阿里云镜像：

http://mirrors.aliyun.com/centos

epel阿里云镜像：

http://mirrors.aliyun.com/epel

演示环境：

centos7 server nginx 10.0.0.1

centos7 test 10.0.0.2

1、nginx代理配置 在server服务器的nginx上配置

server{
    listen 80;
    server_name www.yum.cc;
    root /data/www/yum;
    location  / {
        autoindex on;
        autoindex_exact_size off;
        autoindex_localtime on;
    }
    location  /centos {
        proxy_pass http://mirrors.aliyun.com/centos;
    }
    location  /epel {
        proxy_pass http://mirrors.aliyun.com/epel;
    }
}

这里使用的域名是yum.cc，内网机器需要能解析到这个域名，可以写hosts方式，也可以使用内部dns。

2、内网服务器配置yum源 所有内网服务器上配置

在/etc/hosts中添加一条记录

10.0.0.1  www.yum.cc

centos源配置

cat /etc/yum.repos.d/centos.repo

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://www.yum.cc/centos/$releasever/os/$basearch/
gpgcheck=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
​
#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://www.yum.cc/centos/$releasever/updates/$basearch/
gpgcheck=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
​
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://www.yum.cc/centos/$releasever/extras/$basearch/
gpgcheck=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
​
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://www.yum.cc/centos/$releasever/centosplus/$basearch/
gpgcheck=0
enabled=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

epel源配置

cat /etc/yum.repos.d/epel.repo

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://www.yum.cc/epel/7/$basearch
failovermethod=priority
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
​
[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
baseurl=http://www.yum.cc/epel/7/$basearch/debug
failovermethod=priority
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=0
​
[epel-source]
name=Extra Packages for Enterprise Linux 7 - $basearch - Source
baseurl=http://www.yum.cc/epel/7/SRPMS
failovermethod=priority
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=0

删除其他的yum源文件，只需要保留这两个文件即可

yum clean all
yum makecache