MAT is an easy-to-use network-enabled UNIX configuration and monitoring tool. It provides an integrated tool for many common system administration tasks, including backups, replication, and running commands on hundreds of machines at once. It includes a warning system for potential system problems, and graphing of many common system parameters. MAT provides many of the tools a system administrator needs during the day, including DNS, NIS, Backups, and Replication. One can run a MAT command on many hosts at once. A simple editor window is provided which can modify a set of machine's configurations in one session.
md5mon is a shell script that verifies files by computing their checksums. The script is suitable for use as a basic security checking tool from cron. It features configurable monitoring levels, local copies of find/md5sum, and integrity checks to prevent tampering with itself. It can also use a more secure shasum instead of md5sum.
memtester is a user-space utility for testing the memory subsystem in a computer to determine if it is faulty. It does a good job of finding intermittent faults and non-deterministic faults. It has many tests to help catch borderline memory. memtester should compile and run on any 32- or 64-bit Unix or Unix-like system.
Metagroup is a small Perl utility which adds hierarchical structure to Linux groups. It aims to ease group administration by providing better group handling. One can use metagroup to define "groups of groups". Metagroup translates a file in hierarchical format to the customary flat file format understood by Linux.
mfind is an extensible Machine Find utility. In any network of more than 10 machines, it sometimes becomes necessary to get a list of which machines meet some criteria. This utility is one possible answer to this problem. Composed of two applications, mfind creates a database of machine configurations which is easily parsable using wildcards and regular expressions. For example, it makes it rather easy to determine just how many Sun systems with 256MB of RAM running Solaris 2.6 and an ATI-VideoXpression video card are on-site.