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This tutorial will help you to Start/Stop and Restart the network services on a CentOS 8 or RHEL 8 Linux system. Here are the two methods available. We prefer method 1 to use.
Method 1 – Using NetworkManager Service
In CentOS 8/RHEL 8 when you run the command service network restart you would get the following error:
# service network restart
Redirecting to /bin/systemctl restart network.service
Failed to restart network.service: Unit network.service not found.The above command works on CentOS 6/7 only, so you need using another command to start the network service on CentOS 8.
Get the network service name in CentOS8/RHEL 8.
# systemctl list-units | grep Net
NetworkManager-wait-online.service loaded active exited Network Manager Wait Online
NetworkManager.service loaded active running Network Manager
network-online.target loaded active active Network is Online
network-pre.target loaded active active Network (Pre)
network.target loaded active active Network Use the followings commands to start/stop network service on your CentOS/RHEL 8 Linux system.
sudo systemctl start NetworkManager.service
sudo systemctl stop NetworkManager.serviceUse the followings commands to restart network service on your CentOS/RHEL 8 Linux system.
sudo systemctl restart NetworkManager.serviceMethod 2 – Using nmcli Tool
Note
WARNING – Do not run nmcli networking off for the remotely connected systems. This will disable the NetworkManager network connections on the machine and you will lose connection.
Alternatively, the is the command-line utility for the managing NetworkManager on CentOS/RHEL 8 Linux system. You can simply use this utility to stop/start network service on your CentOS 8 or RHEL 8 system.
# nmcli networking -h
Usage: nmcli networking { COMMAND | help }
COMMAND := { [ on | off | connectivity ] }
on
off
connectivity [check]sudo nmcli networking off
sudo nmcli networking onADVERTISEMENT
