Configure network settings on a new CentOS 7 server

  1. use the nmtui to configure the network connection.  Define the netmask in the ip address.
     Ex. 10.0.0.1/8 or 192.168.1.33/24
  2. Restart the network services for changes to take place:
    systemctl restart network.service.
  3. To be able to use the ifconfig command, install the net-tools
    yum -y install net-tools
  4. To be able to use the nslookup command, install the bind-utils
    yum -y install bind-utils
  5. Update the build
    yum -y update