Open Source JavaScript Logging Software for Linux

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

PlutoStatus is a system to publish the current status of your systems. It includes mirroring.

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.