LES is intended as a facility to quickly & easily secure RedHat/RPM
based environments (i.e: turbo linux, open linux). It does such by enforcing
root-only permissions on system binaries (binaries that have no place being 
executed by normal users), enforcing root-only path traversal on system paths,
enforcing immutable bit on essential rpm package contents (i.e: coreutils), and
enforcing immutable bit on shell profile scripts.

The combined usage of all LES options provides an increased level of local
environment security, in the hopes to stem off environment based attacks. Such
attacks would consist of back-dooring system binaries; tainting the $PATH
variable to point to alien paths where back-doored binaries are located;
alterations to user profile scripts to activate key loggers or process based
hi-jacking; traversal exploration of the system paths etc...; the possible
attack trends are endless hence the importance of hardening the local
environment space.

It is recommended to use this script in conjunction with Linux capability
restrictions and disable the CAP_LINUX_IMMUTABLE privilege to further enhance
the security to your environment.