Ubuntu – The command could not be located because ‘/sbin’ is not included in the PATH environment variable

ifconfiglxterminal

I have a severe problem today: when I type ifconfig it does not show ip configuration on ubuntu 12.04. Can anyone help me on this?

Here is the result of ifconfig:

Command 'ifconfig' is available in '/sbin/ifconfig'
The command could not be located because '/sbin' is not included in the PATH environment variable.
This is most likely caused by the lack of administrative privileges associated with your user account.
ifconfig: command not found

Best Answer

Try this command :

sudo ln -s /sbin/ifconfig /usr/bin/ifconfig

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Ubuntu – Why do i have to be root to run the command ifconfig

As the message says, the problem is that ifconfig is not in your path. You can run it as a normal user by giving the full path: /sbin/ifconfig. Try it!

My guess is that on 10.04 you added /sbin/ to your path, and didn't do that when upgrading to 12.04.

Note, however, that you will need to be root if you want to use ifconfig to change networking configurations; I hope the reasons for this are more than obvious :)

Ubuntu – NetworkManager problem with ‘cloned MAC address’

I'm on Ubuntu 12.04.2 kernel 3.5 with the same issue as you. NetworkManager is unable to make the cloned mac address "stick" to the ethernet port (I haven't tried it with wlan). I am able to run:

ifconfig eth0 down
ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX
ifconfig eth0 up

without uninstalling NetworkManager. Once I run these commands, the ethernet adapter will stick with the new, spoofed mac address, but once I disconnect ethernet, sleep the computer, or reboot, NetworkManager reverts it back to the original one.

So basically, my workaround is to run these commands before connecting to the network, and it's good enough for me. It would be REALLY nice if NetworkManager behaved as it was supposed to though.

I've filed a bug report here: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1116421

Best Answer

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Ubuntu – Why do i have to be root to run the command ifconfig

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