ifconfig linux command || linux Networking command

In this video, we dive into the essentials of the ifconfig command in Linux! Whether you're a beginner or looking to refresh your knowledge, this tutorial covers the most common uses of ifconfig for managing and troubleshooting network interfaces.

View all network interfaces:


ifconfig
This command displays the network configuration of all active network interfaces on the system.

View a specific interface:


ifconfig eth0
This command displays the details for the eth0 interface, such as IP address, MAC address, netmask, and more.

Enable a network interface:


sudo ifconfig eth0 up
This brings the network interface eth0 up (activates it).

Disable a network interface:


sudo ifconfig eth0 down
This brings the network interface eth0 down (deactivates it).

Assign an IP address to an interface:


sudo ifconfig eth0 192.168.1.100 netmask 255.255.255.0 up
This command assigns the IP address 192.168.1.100 with the subnet mask 255.255.255.0 to the interface eth0.

Set the MAC address of an interface:


sudo ifconfig eth0 hw ether 00:11:22:33:44:55
This command changes the MAC address of the eth0 interface to 00:11:22:33:44:55.

View the network interface statistics:


ifconfig -s
This command provides a summary of network interfaces, including packet counts and errors.

Assign a broadcast address:


sudo ifconfig eth0 broadcast 192.168.1.255