When using the Linux command line for network and system configuration, the first step is to close the IEOS program. IEOS is managed through systemctl, 
The way to close IEOS is as follows:

#systemctl stop ieos_daemon

This shutdown is only effective for this startup. Even after the system restarts, the IEOS program will still start. The way to disable IEOS program startup is as follows

#systemctl disable ieos_daemon