Netwatcher is a simple yet flexible computer networks "health monitoring" software, targeted primarily at "server farms" (or rather "server zooes"?) like those used in ISP companies. Basic concepts are:

• Use of HTTP as monitoring and management console
• Use perl for maximum portability
• Avoid propriatry agents on monitored objects, stay with SNMPd
• Use SQL database to keep both configuration and status of objects
• Monitors that actually probe the status of objects are logically separated from the part that makes decisions, send notifications etc.

Why another monitor? Announcement posted when the first version was published.

There is a document describing architecture of the system.

Get the software from the project page:

• http://sourceforge.net/projects/netwatcher/

Eugene Crosser <crosser at average dot org>