network manager tui in centos 7

You can use the network manager text user interface

# nmtui


                                   ┌─┤ NetworkManager TUI ├──┐
                                   │                         │
                                   │ Please select an option │
                                   │                         │
                                   │ Edit a connection       │
                                   │ Activate a connection   │
                                   │ Set system hostname     │
                                   │                         │
                                   │ Quit                    │
                                   │                         │
                                   │                     │
                                   │                         │
                                   └─────────────────────────┘