Master的配置：[root@www abc]# wget http://mirror.webtatic.com/yum/el7/epel-release.rpm  //下载epel-release[root@www abc]# wget http://mirror.webtatic.com/yum/el7/webtatic-release.rpm //下载webtatic-release[root@www abc]# rpm -ivh epel-relea...