Command Center

:: Whati is
Please take a look at this.

:: Installing LES

[root@centoz ~]# mkdir download
[root@centoz ~]# cd download/
[root@centoz download]# wget http://www.r-fx.ca/downloads/les-current.tar.gz
[root@centoz download]# tar -xzf les-current.tar.gz
[root@centoz download]# cd les-0.2/
[root@centoz les-0.2]# ./install.sh
.: LES installed
Install path:    /usr/local/les
Config path:     /usr/local/les/conf.les
Executable path: /usr/local/sbin/les

:: Running LES

[root@centoz les-0.2]# /usr/local/sbin/les -ea

You can try other options :

-da | --disable-all       Disable all options
-ea | --enable-all        Enable all options
-sb | --secure-bin        Set root only execution of critical binaries
-sp | --secure-path       Set root only traversal of critical paths
-sr | --secure-rpmpkg     Set immutable on core rpm package binaries
-so | --secure-prof       Set immutable on interactive login profiles
-sd | --secure-devel      Set access to devel utils for group deva & root


REFERENCES
http://www.blackonsole.org/2009/07/installing-les-linux-environment.html