Check_MK is a complex addon for Nagios/Icinga and consists of three subprojects. The check and inventory system Check_MK is a general purpose Nagios plugin for retrieving data. It adopts a new approach for collecting data and obsoletes NRPE, check_by_ssh, NSClient, and check_snmp. It features a significant reduction of CPU use on the Nagios host and automatic inventory of items to be checked, and is especially useful with larger Nagios installations. "MK Livestatus" gives immediate and fast access to live and historic Nagios status data. It's a supported backend for many addons including NagVis, NagiosBP, and Thruk. "Check_MK Multisite" is a feature complete replacement for the Nagios GUI, and uses MK Livestatus as a backend. It is very fast, and supports efficient distributed monitoring.
RapidInsight is an integration, automation, and presentation suite for IT operations management. It brings the leading Web technologies into the IT management field, designed from the ground up as an open solution to minimize implementation time and the total cost of ownership and to maximize skill reuse. RapidInsight is typically used to integrate management information such as events, inventory, and tickets from disparate management systems and present to users through a simple, unified, consistent Web based user interface.
NetXMS is a network monitoring and management system with a modular architecture. It can be used for monitoring an entire IT infrastructure, starting with SNMP-capable hardware (like switches and routers) and ending with applications on servers. The system has a three-tier architecture; the information is collected by monitoring agents (either its own agents or SNMP agents) and delivered to the monitoring server for processing and storing, where it can be accessed by using the management console. It features centralized configuration and centralized agent upgrades.
Pymailheaders is a small GTK+ program which displays mail headers in your mail box. It is an innovation of xmailheaders, with a few more handy features like new mail highlighting, multi-language support, lauching regardless of network connection status, and auto-reconnecting. IMAP4 and POP3 protocols and XML feeds (including Gmail) are supported.
Lilac is a configuration tool for Nagios 3. Its features include enhanced Nagios 3 time period support, multiple template inheritance, host templates able to contain services, dependencies, and escalations, an importer which can import existing Nagios configurations and import from a Fruity installation, an Exporter with Nagios process control, the ability backup existing configuration files, and an auto-discovery tool to quickly add your infrastructure into your Nagios installation.
The Ninja project is an attempt to develop an alternative Nagios GUI with the aim of being the most useful Open Source Web front end for Nagios. It improves searching and filtering and scalability. It supports templates and skins for customizing appearance, and supports several databases. You can use the components of Ninja in combination with the CGI scripts of the original Nagios Web GUI or as replacements for them.
Nagstamon is a Nagios status monitor with a UI that resides in the systray or as a floating statusbar on your desktop. It informs you in realtime about the status of your Nagios, Icinga, Opsview, Ninja, Check_MK/Multisite, Centreon, or Thruk-monitored network. It alerts you with sound and visual notification. Failed hosts and services are easy to connect with by SSH, RDP, and VNC. Custom actions can be run on certain events. It works best with GNOME, but also with KDE, Mac OS X, and Windows.
SystemTap is a tracing and probing tool that allows users to study and monitor the activities of the computer system in fine detail. It provides information similar to the output of tools like netstat, ps, top, and iostat; however, SystemTap is designed to provide more filtering and analysis options for collected information. It can be used as a performance monitoring tool, and is most useful when other tools cannot precisely pinpoint a bottleneck in the system, requiring a deep analysis of kernel activity. Application developers can also use it to monitor, in finer detail, how their application behaves within the Linux system.