CentOS 7 has been recently released studded with many new features. On the part of exploring the CentOS 7, you might encounter with its first change if you use the minimal installation.
On CentOS 6.x and before, ifconfig command by default used to shipped. Whereas in minimal installed CentOS 7 , ifconfig command it is not found.
To get the ifconfig command into our system , run the below given command as root:
yum install net-tools