1. Start, Stop, Restart, and Show Status using NetworkManager.service:
#sudo systemctl start NetworkManager.service #sudo systemctl stop NetworkManager.service #sudo systemctl restart NetworkManager.service #sudo systemctl status NetworkManager.service
2. Start, Stop, and Show Status using nmcli:
**Caution: Do not run "nmcli networking off" if connected via SSH, as it may result in network connectivity loss.**
#sudo nmcli networking on #sudo nmcli networking off #sudo nmcli general status #sudo nmcli device status
These commands allow you to control and report network status using the NetworkManager service and nmcli tool on CentOS 8 or RHEL 8 Linux systems.