This section is only necessary for SUSE. For other OSs, skip it.
Press i to enter the editing mode, and set the value of the configuration item to yes so that the system obtains the default gateway using DHCP.
Press Esc to exit the editing mode.
If DHCLIENT_PRIMARY_DEVICE does not exist in the configuration file, skip this step.
Press i to enter the editing mode, and set the value of the configuration item to no so that the host name will not be changed when DHCP is used.
Press Esc to exit the editing mode.
Press i to enter the editing mode, and set the value of the configuration item to no so that the fallback to the last lease is disabled.
Press Esc to exit the editing mode.
Press i to enter the editing mode and set the value of the configuration item to managed.
Press Esc to exit the editing mode.