GKrellM is a GTK-based stacked monitor program that charts SMP CPUs, disks, load, active net interfaces, and internet connections. There are also builtin monitors for memory and swap, file systems with mount/umount feature, mailbox checking including POP3 and IMAP, clock/calendar, laptop battery, sensors (temperatures, voltages, and fans), and uptime. It has LEDs for the net monitors and an on/off button and online timer for PPP. There is a GUI popup for configuration, plugin extensions can be installed, and many themes are available. It also features a client/server monitoring capability.
RHQ is a management platform for everything from the OS level load and network metrics through common databases to application servers and projects. The system includes support for monitoring and/or managing Apache httpd, Apache Tomcat, JBoss Application Server, PostgreSQL, and other popular open source projects. It is built on the powerful RHQ plugin model that allows for the quick development of support for new projects. It supports inventory auto-discovery, rich monitoring and alerting, operational control, configuration management, content deployment, log tracking, and full history and auditing. It supports fine-grained security and rich group management.
AppDynamics an application performance management solution for mission-critical Java applications. It can organize user requests and business transactions, monitor business transaction health, identify and diagnose slow requests, identify and diagnose errors, and drill down. It is built from the ground up for highly distributed service-oriented environments. It has fast root cause diagnostics at the method/class level, but creates no more than 2% overhead, even in high-volume production deployments. It can not only manage applications, but dynamically scale them in cloud and virtual environments.
Membrane SOAP Router is a modular SOAP intermediary written in Java. It is fully configurable due to Spring style configuration. You can audit SOAP traffic, route messages through DMZ, and gather performance statistics. The small memory consumption of less than 20 Megabytes makes it possible to run an instance of Membrane SOAP Monitor on any computer that provides or consumes Web services.
Andutteye is a systems management platform that automates enterprise data centers and keeps them running. It contains different modules that targets different tasks of systems management. From a single point of operations you can monitor, manage, and execute all ranges of tasks needed for centralized systems management.
TNV (The Network Visualizer or Time-based Network Visualizer) depicts network traffic by visualizing packets and links between local and remote hosts. It is intended for network traffic analysis to facilitate learning what constitutes 'normal' activity on a network, investigating packet details and security events, or for network troubleshooting. It can open saved libpcap (from tcpdump, windump, ethereal, etc.) formatted files or capture live packets on the wire, and export data in libpcap format or save the data to a MySQL database to enable the examination of trends over time.
MCS MyRoute helps diagnose connectivity problems with detailed network routing discovery and analysis, providing visibility to poor-performing networks and devices. It includes a Java applet that enables remote users to easily test connections from the MyRoute server. Essential diagnostic tools including traceroute, ping, reverse DNS, and whois are combined into a single graphical interface that analyzes Internet connections, reporting quick and essential data points for finding connectivity problems. An IP location database identifies the geographical location of IP addresses and Web servers, showing the path of an Internet connection on a global map.