CentOS部署yum本地源和共享

• 约定yum本地源的机器IP为192.168.1.100，需要访问共享源的IP为192.168.1.101
• 关闭并禁止selinux和firewalld
  

  创建本地源

  1.上传centos7光盘镜像到指定目录下（这里定为/usr/local/src）
  2.挂载镜像文件

  #mkdir  /media/cdrom
  #mount -t iso9660 -o loop /usr/local/src/CentOS-7-x86_64-Everything-1511.iso /media/cdrom/
  

  3.设置开机自动挂载系统镜像文件
  #vim /etc/fstab添加
  /usr/local/src/CentOS-7-x86_64-Everything-1511.iso /media/cdrom/ iso9660 defaults,ro,loop 0 0
  保存并退出
  注：iso9660 CD-ROM光盘的标准文件系统
  mount –l
  4.配置本地源文件
  #vi centos7-media.repo

  name=Centos linux 7.0
  baseurl=file:///media/cdrom
  enabled=1
  gpgcheck=1
  gpgkey=file:///media/cdrom/RPM-GPG-KEY-CentOS-7
  

  5.本地源命令
  清除缓存
  #yum --disablerepo=\* --enablerepo=centos7-media clean all
  缓存本地yum源包信息
  #yum --disablerepo=\* --enablerepo=centos7-media makecache
  使用镜像源安装软件
  #yum --disablerepo=\* --enablerepo=centos7-media install

  共享yum源

  6.在源主机上安装httpd并修改站点目录到/media/cdrom
  #vi /etc/httpd/conf/httpd.conf/httpd
  将DocumentRoot "/var/www/html"改为DocumentRoot "/media"
  将<Directory "/var/www/html">改为<Directory "/media">
  重启httpd
  7.配置共享源

  • 在需要访问yum源的主机上，将/etc/yum.d.repo/下的文件全移到该目录的bak文件夹下
  • 配置文件CentOS.repo
    #vi CentOS.repo

    [base]
    name=CentOS7
    baseurl=http://192.168.1.100/cdrom/
    gpgcheck=0
    gpgkey=http://192.168.1.100/cdrom/CentOS-Media/RPM-GPG-KEY-CentOS-7
    

    清除缓存
    #yum clean all
    查看源列表
    #yum repolist

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