Which site-specific configuration file for the shadow login suite must be modified to log login failures?
Whatcommand, without options or parameters, should be run to present the contents of the kernel ring-buffer?
Which command will prevent the service ldap from starting on a Debian system in all runlevels, forcing the removal of all symlinks in /etc/rcX.d?
What command will search for physical defects on a hard drive and will mark these defects so that they are no longer used?