RRDtool (Round Robin Database Tool) is time-series
data storage and graphing utility created by the
author of MRTG. Using RRDtool, you can write your
own MRTG-like tools in a matter minutes with only
a few lines of Perl or shell code.
A configuration tool for managing Linux kernel packet filtering rules of the nf_tables packet filter.
A Web-based administration tool for servers that host Subversion repositories.