liboping is a C library for measuring network latency using ICMP echo requests. It can send to and receive packets from multiple hosts in parallel, which is nice for monitoring applications. Both IPv4 and IPv6 are supported transparently for the programmer and user. A program called oping is included to show the simplicity and potential of the library and provide the functionality at the command line.
Rugg is a hard drive and filesystem harness tool that allows you to test and benchmark drives and filesystems by writing simple to complex scenarios that can mimic the behaviour of real-world applications. Test scenarios can be implemented using Rugg's compact and versatile domain specific language.
check_logfiles is a plugin for Nagios which checks logfiles for defined patterns. It is capable of detecting logfile rotation. If you tell it how the rotated archives look, it will also examine these files. Unlike check_logfiles, traditional logfile plugins were not aware of the gap which could occur, so under some circumstances they ignored what had happened between their checks. A configuration file is used to specify where to search, what to search, and what to do if a matching line is found.
mpt-status is a query tool for accessing the running configuration and status of LSI SCSI HBAs. It is a heavily modified version of the original mpt-status-1.0 tool written by Matt Braithwaite. It allows you to monitor the health and status of your RAID setup. Currently supported and tested HBAs are the LSI 1030 SCSI RAID storage controller and LSI SAS1064 SCSI RAID storage controller. Since the tool uses the MPI (message passing interface), chances are high that the basic information regarding RAID status will be available for all LSI-based controllers.
Torta shows you where your disk space is going. It uses the graphical format used by filelight to represent disk usage. Unlike filelight, it can be run on a computer with no graphical environment: it generates a Flash file that can be consulted, locally or remotely, using any browser that has the Flash plugin installed.
Bartlby is a network and system monitor, completely written in C, to provide a scalable framework with the ability to monitor networks of various sizes. It consists of a core daemon, several plugins, and a Web GUI (PHP extension). The core daemon checks (over active/passive TCP) services/hosts and notifies users in case of critical service conditions (mail, SMS, ICQ, and custom triggers are supported). Bartlby provides an open plugin interface to give every administrator an easy to use option to extend the plugin base, and a fully customizable GUI (written in PHP using a C extension). Nearby everything can be controlled via an XML interface.
System Local Audit Daemon can run standalone or managed by systems like IBM-Tivoli, HP-OpenView, or Nessus to perform local security checks. It runs on the target hosts and enables them to call security tools like John the Ripper, Tiger, Tripwire, or a virus scanner via a unified XML interface. It is part of the BOSS Project.