unit13 practice

<<<第十三单元练习>>>

1.在server主机中配置yum仓库，并安装gcc编辑器

      mount /rhel-server-7.1-x86_64-dvd.iso /mnt

      vim /etc/yum.repos.d/yum/repo

     cat/etc/yum.repos.d/yum/repo

 [rhel7.2]

name=rhel7.2

baseurl=file:///mnt

gpgcheck=0

:wq

      yum clean all 

      yum install gcc  -y