• 国内镜像站点

  163:mirrors.163.com
  阿里:mirrors.aliyun.com

• 修改默认yum源

1. 备份系统自带yum源文件:/etc/yum.repos.d/CentOS-Base.repo

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2. 下载ailiyun/163的yum源配置文件到/etc/yum.repos.d/
   yum -y install wget
   aliyun:
   wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
   163:wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

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3. 刷缓存yum makecache并更新yum -y update

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4. 查看yum源文件yum list|grep php或yum -y list php*

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