REDHAT 7: HOW TO SETUP NETWORK AFTER MINIMAL INSTALLATION

After fresh installation of Rhel 7, you may not be able to connect to that machine. This is because ethernet interfaces are not enabled by default.

STEP 1: You can see the ethernet interfaces in the machine using "nmcli d" command.

STEP 2: Use "nmtui" command to open a window of Network Manager.  Choose "edit connection".  

STEP 3: Select the interface and click edit.

STEP 4:  Choose "Automatic" and "OK". Automatic is to get ip address via DHCP. If you need to configure IP manually, choose "Manual".

STEP 5:   Restart network using the command:

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service network restart

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Now, you can see, an ip address has been obtained via DHCP as below:

 Kool :)