linux restart network card command

The commands to restart the network card in Linux are: 1. ifdown/ifup command, ifdown is used to stop the network connection of the specified network card, ifup is used to start the network connection of the specified network card; 2. systemctl command, systemctl restart network is used to restart the network service; 3. service command, service network restart is used to restart network services; 4. ip command, ip link set <network card name> down, etc.