The the network command line tool ifconfig is not installed thus missing by default on CentOS 7 Linux. Users are instead encouraged to use ip command to do most of the network administration work. For example the following ip command can be used to show IP address on CentOS 7:

Ifconfig Command - Explained in Detail | All about Linux Nov 20, 2006 ifconfig Command in Linux - Baeldung on Linux May 20, 2020 Ifconfig command: Installation, Top 10 Examples & Options Apr 07, 2020 ifconfig? - openSUSE

1. ifconfig command is used to configure a network interfaces in GNU/Linux systems. It displays the details of a network interface card like IP address, MAC Address, and the status of a network interface card etc. But, this command is obsolete, and is not found in the minimal versions of RHEL 7 and its clones like CentOS 7, Oracle Linux 7, and Scientific Linux 7.

Dec 13, 2019 How to configure Linux Ip through ifconfig – GeekPills # ifconfig eth0 | grep -i mtu UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 # ifconfig eth0 mtu 2500 # ifconfig eth0 | grep -i mtu UP BROADCAST RUNNING MULTICAST MTU:2500 Metric:1 Enable Promiscuous Mode. you could enable Promiscuous Mode of any interface through ifconfig command.

Jun 25, 2018

some times in other linux distros when I ran into ifconfig without sudo I got the same message. my suggestion is run it as sudo ifconfig. if still exists let me know about other terminal commands working. Jul 11, 2019 · Once the installation is complete and successful, try running ifconfig command again and this time, your network statistics will be displayed on the terminal as seen in the last section of the snippet above. Mar 28, 2013 · Ifconfig not working on Kali 2020.1 Is this happening to anybody else? I just upgraded to 2020 from 2019.4 (the vbox version) and it's saying "command not found". I need to run ipconfig on a Win 10 PC, and haven't figured out how to bring up a 'DOS box'. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. The ifconfig eth0 up command on most Linux systems can be abbreviated to ifup eth0. The same holds true for deactivating an interface, so that ifconfig eth0 down can be abbreviated as ifdown eth0 . Have you tried to run it in cmd prompt? Click start, type “cmd” - right click and run as admin Then type “ipconfig” and hit enter. Let me know if this works! % ifconfig em0: flags=8843 mtu 1500 options=b inet netmask 0xffffff00 broadcast