离线安装RPM包时需要net-tools

1. 下载离线net-tools

wget http://mirror.centos.org/centos/7/os/x86_64/Packages/net-tools-2.0-0.25.20131004git.el7.x86_64.rpm

2. 安装

rpm -ivh net-tools-2.0-0.25.20131004git.el7.x86_64.rpm