How to check the network card connection status in CentOS?

To check the network card connection status on CentOS, you can use the following command:

1. By using the “ifconfig” command: open the terminal and input the “ifconfig” command, which will display detailed information about all current network devices, including their connection status.

ifconfig

1. By using the ip command as an alternative to ifconfig, you can view detailed information about network devices.

ip addr

1. To use the ethtool command, you can access information about Ethernet devices, including their connection status. Make sure to install the ethtool software package before using this command.

ethtool eth0

Please note that “eth0” in the above command is the name of the network card, and you may need to replace it with the actual name of the network card that you are using.