ifconfig
TLDR
Show all interfaces
$ ifconfig
Show specific interface$ ifconfig [eth0]
Set IP address$ sudo ifconfig [eth0] [192.168.1.100]
Enable interface$ sudo ifconfig [eth0] up
Disable interface$ sudo ifconfig [eth0] down
Set netmask$ sudo ifconfig [eth0] netmask [255.255.255.0]
SYNOPSIS
ifconfig [interface] [options]
DESCRIPTION
ifconfig configures network interfaces. It displays and modifies IP addresses, netmasks, and interface status.
The tool is being replaced by ip command but remains widely used. It shows interface statistics and configuration.
ifconfig manages network interfaces.
PARAMETERS
INTERFACE
Network interface name.up
Activate interface.down
Deactivate interface.netmask MASK
Set network mask.broadcast ADDR
Set broadcast address.mtu SIZE
Set MTU size.--help
Display help information.
CAVEATS
Deprecated for ip command. Part of net-tools. Root needed for changes.
HISTORY
ifconfig is a traditional Unix network configuration tool, now superseded by iproute2 ip command.
