Network Interface Cards (NICs) are essential hardware components that connect a computer to a network. They allow the computer to communicate with other devices on the network, such as other computers, printers, and servers. NICs can be either wired or wireless. Wired NICs connect to the network using an Ethernet cable, while wireless NICs connect to the network using Wi-Fi.
There are a number of different ways to check the status of a NIC in Linux. One way is to use the ifconfig command. The ifconfig command displays information about all of the network interfaces on the system. To use the ifconfig command, simply type the following command into a terminal window: