ifconfig
ifconfigis a command in Unix-like operating systems like Linux[1], FreeBSD, OpenBSD, macOS for Ethernet network interface configuration.
In macOS, the ifconfig command functions as a wrapper to the IPConfiguration agent, and can control the BootP and DHCP clients from the command-line. Use of ifconfig to modify network settings in Mac OS X is discouraged, because ifconfig operates below the level of the system frameworks which help manage network configuration. To change network settings in Mac OS X from the command line, use /usr/sbin/ipconfig or /usr/sbin/networksetup.
ifconfig command is included in the net-tools package but not installed by default in RHEL since version 7[2].
Configuring an alias IP
Activities
- Show interface configuration in Linux including ip addresses:
ifconfig -aorip a - Show interface Ethernet network capabilities of your interface, such as speed, with:
mii-tool -v YOUR_INTERFACE_NAME,mii-tool -v eth0 - Show all network interfaces in Linux:[3]
- Learn about Linux Naming Schemes Hierarchy.
- Change your MAC address:
ifconfig {eth0|wlan0} hw ether CA:CA:CA:CA:CA:CA - macOS:
ipconfig getifaddr en0
Related
docker inspect CONTAINER_NAME | grep IPAddress- Linux:
hostname -I,hostname -i
anpi0 anpi1 anpi2 ap1 awdl0 bridge0 en0 en1 en2 en3 en4 en5 en6 gif0 llw0 lo0 stf0 utun0 utun1 utun2 utun3
See also
- Linux networking: Consistent Network Device Naming (eth, ens), DPDK, Alias IP, bonding, Wlan0,
ip[link, route],ifconfignetstatsslsofpingethtoolmii-toolarpingnmcli(RHEL)routenetworkctl,netplan,tc ipconfigWindows command- macOS:
networksetup,ifconfig,ipconfig [ getifaddr ],scutil - bonding
References
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