|In general, the default file permissions set by most vendors are fairly secure. To make them more secure, though, you can remove non-root user access to some administrator functions.
If you choose this option, you'll be changing the permissions on some common system administration utilities so that they're not readable or executable by users other than root. These utilities (which include linuxconf, fsck, ifconfig, runlevel and portmap) are ones that most users should never have a need to access. This option will increase your system security, but there's a chance it will inconvenience your users.|