Kerneler is a script that helps users to recompile the Linux Kernel on debian based distros (debian, ubuntu, knoppix, kanotix and more). Official site is http://www.kerneler.org
TCSS is a bash script used for traffic management on Linux 2.4 and 2.6 kernels. It supports groups, multiport rules, minimun and burst rates, prioritization and can make use of layer7 filtering too.