Krcstat is a graphic replacement for the Gentoo rc-status and rc-update command line utilities. It can be used to check that all your services are active and generate an alert if they are not. You may easily create new runlevels and drag services from the Services pane into them. (Alternate runlevels may be specified by using the softlevel parameter on the kernel command line in Grub or Lilo.) Krcstat is a bit conservative and will not let you delete the boot or default runlevels or certain boot services deemed critical. To use its configuration features it must run as root; if you only want to monitor services, it can be run as a normal user.