ifconfig
ifconfig is a Linux command in the Network category, rated intermediate difficulty. Configures and displays network interface information (legacy, use ip now). The syntax is ifconfig [interface] [options]. It returns network interface configuration. A practical example: ifconfig ifconfig eth0 # Show specific interface ifconfig eth0 down # Disable interface A close relative is ping, which tests network connectivity to a host by sending ICMP echo requests. A close relative is curl, which transfers data to/from a server using various protocols (HTTP, FTP, etc.). A close relative is wget, which downloads files from the internet. Supports recursive downloads. More about this category: Linux networking commands — ping, curl, wget, netstat, ss, ifconfig, and more. Configure and troubleshoot network connections. Related Network commands: ping, curl, wget, ip, ss, netstat, nslookup, dig. This page is part of the free Linux Reference documentation covering 304+ commands, each with syntax, options, practical examples, and a difficulty rating.