Has the use of sudo changed in Debian 7?

Goez asked:

I will try to explain my situation first. I am currently running 6 virtualized Debian servers on a ESXi host machine. The virtual servers where installed with a Debian Linux 6 (Lenny).

Recently I updated the servers to debian Wheezy

[email protected]> lsb_release -a                                                                                                    /home/vincent
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 7.1 (wheezy)
Release:        7.1
Codename:       wheezy

it has come to my attention that since this upgrade the ‘sudo’ command is displaying weird behaviour. Actually, it seems to have no effect at all. I checked the /etc/visudo file and everything seems ok. Sudo also asks for my password but then does not seem to run things as root.
An example is the ‘ifconfig’ command:

[email protected]> ifconfig 
zsh: command not found: ifconfig
[127] [email protected]> sudo ifconfig
sudo: ifconfig: command not found
[1] [email protected]> sudo su
[email protected]>ifconfig  
output shows    

anyone who can help me out here?

My answer:

Your PATH probably differs between your normal user and the root user, likely missing directories such as /sbin and/or /usr/sbin where administrative utilities like ifconfig normally live.

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