Open Source JavaScript Logging Software

Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com

Hyperic is application monitoring and performance management for virtual, physical, and cloud infrastructures. Auto-discover resources of 75+ technologies, including vSphere, and collect availability, performance, utilization, and throughput metrics.

RPi-Monitor is a monitoring tool which keep an eye on your computer and can give you the current status and the history of resources usages in a nice looking and interactive web interface. RPi-Monitor is design to be light and powerful and doesn't relies on other software to run. It has been deigned to run on embedded device and consume very few system resources.

Mojo Webstats is a simple web statistics tool. It uses Javascript, PHP and MySQL to process web statistics. Includes: 1) date/time, 2) document location and title, 3) ip address and hostname, 4) browser version, 5) visitor resolution, and 6) referrer.

PVLng is a manufacturer independent system for saving operating data of photovoltaik plants.

Collect the computer and system info at a given time in order to track issues or problems. You can share the generated report with your friend or someone of your trust to help you detect your computer problem at a given moment.

WhoisUP v0.3 monitors hosts via ICMP and shows the status in a web page. When a host is down, the script can send mail, syslog message, open a popup message or play a sound. Moreover, the script monitors if the host exceed the latency threshold limit. The script uses NMap to send ICMP packets and to save the host status into an XML file. Then, WhoisUP reads the XML and shows the report in a web page with AJAX features; in case of host failure the script can send alarms. WhoisUP is useful to monitor hosts (PC, Server, NAS, Router, Switch and so on...) and to receive alerts when a host go down.

A PHP application to search for matching strings in log files. It was mainly designed for usage in a syslog server environment with big log files, where you cannot log to databases due to the size, but to plain text files which will be searched.

a java based monitoring tool,logs all the user actions and errors with runtime data, displays execution performance and executed method lines. It doesnt modifiy class source files and no need for coding, just put it in your class path and see the mir