From Christoph's Personal Wiki
msec is a package of Mandriva Linux security tools.
Note: See man page for details.
msec ([-o <option>=<value>...]) ([0-5])
msec is the main script of the msec package. It enables the system administrator to change the security level for that system. msec is provided with six preconfigured security levels. These levels range from poor security and ease of use, to paranoid config, suitable for very sensitive server applications. You must be root to run msec. Launch "msec x" to set you security level to x (x=[0-5]). It'll modify your system according to security level x features. Called without argument, it will enforce the current security level without lowering security. All the changes are logged to syslog(8) at the AUTH facility when called non interactivelly (by cron for example) or at the LOCAL1 facil‐ ity when called interactivelly (on the command line or from Mandriva Linux Control Center for example). For a fine description of each security level, consult the documenta‐ tion under /usr/share/doc/msec-*/security.txt. If you want to make changes to the current level, use /etc/secu‐ rity/msec/perm.local to override the permissions/owners/groups (use the same syntax as /usr/share/msec/perm.* or use the drakperm graphical utility) and /etc/security/msec/level.local to override the rules (see mseclib(3) for details or use the draksec graphical utility).
- Msec Howto — on the Linode Wiki.