linux之yum源设置代理 linux

一般在内网环境中,多数服务器是不能直接上外网的(为了安全),只有个别的服务器可以访问外网,在不能访问外网的服务器上安装软件由于依赖的问题很容易出错,安装不下去,这时候就可以借助可以上外网的服务器做代理来安装软件。

Centos7下设置代理案例

A服务器	192.168.1.10	可以访问外网
B服务器	192.168.1.111	不能访问外网,可以通过内网IP访问A服务器

在A服务器安装nginx

我们使用nginx作为yum的反向代理软件

> yum install nginx -y

配置nginx

> vim /etc/nginx/conf.d/yum.conf server { listen 80; server_name yum.com; location /centos/ { proxy_pass http://mirrors.aliyun.com/centos/ ; }location /epel/ { proxy_pass http://mirrors.aliyun.com/epel/ ; } } //重启nginx > nginx -s reload

修改B服务器的repo文件

//备份 > cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak > vim /etc/yum.repos.d/CentOS-Base.repo [base] name=CentOS-$releasever - Base - yum.com failovermethod=priority baseurl=http://yum.com/centos/$releasever/os/$basearch/ http://yum.com/centos/$releasever/os/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os gpgcheck=1 gpgkey=http://yum.com/centos/RPM-GPG-KEY-CentOS-7#released updates [updates] name=CentOS-$releasever - Updates - yum.com failovermethod=priority baseurl=http://yum.com/centos/$releasever/updates/$basearch/ http://yum.com/centos/$releasever/updates/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates gpgcheck=1 gpgkey=http://yum.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that may be useful [extras] name=CentOS-$releasever - Extras - yum.com failovermethod=priority baseurl=http://yum.com/centos/$releasever/extras/$basearch/ http://yum.com/centos/$releasever/extras/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras gpgcheck=1 gpgkey=http://yum.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus - yum.com failovermethod=priority baseurl=http://yum.com/centos/$releasever/centosplus/$basearch/ http://yum.com/centos/$releasever/centosplus/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus gpgcheck=1 enabled=0 gpgkey=http://yum.com/centos/RPM-GPG-KEY-CentOS-7#contrib - packages by Centos Users [contrib] name=CentOS-$releasever - Contrib - yum.com failovermethod=priority baseurl=http://yum.com/centos/$releasever/contrib/$basearch/ http://yum.com/centos/$releasever/contrib/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib gpgcheck=1 enabled=0 gpgkey=http://yum.com/centos/RPM-GPG-KEY-CentOS-7

B服务器上修改/etc/hosts