[ Thanks to Kapil Sharma for this
link. ]
“In this article I will explain how to make your Linux box
secure by taking basic security measures. This article will enable
anybody to tighten the security of a redhat Linux box.”
“Always set a password on BIOS to disallow booting from floppy
by changing the BIOS settings. This will block undesired people
from trying to boot your Linux system with a special boot disk and
will protect you from people trying to change BIOS feature like
allowing boot from floppy drive or booting the server without
password prompt….”
“You should disable and uninstall all services that you do not
use so that you have one less thing to worry about. Look at your
“/etc/inetd.conf” file and disable what you do not need by
commenting them out (by adding a # at the beginning of the line),
and then sending your inetd process a SIGHUP command to update it
to the current “inetd.conf” file….”