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Observium logo.jpg
Original author(s) Adam Armstrong
Developer(s) Adam Armstrong, Tom Laermans and Mike Stupalov
Initial release October 2006
Stable release Continuous rolling release
Written in PHP
Operating system Unix-like
Type Network monitoring
License Observium License[1] and QPL
Website http://www.observium.org/

Observium is a PHP / MySQL-based Network Observation and Monitoring System (NOMS) which collects data from devices using SNMP and presents it via a web interface. It makes heavy use of the RRDtool package. Observium has a number of simple core design goals driving its development: minimum interaction, maximum automation and maximum accessibility of information. These design goals have resulted in a slightly unconventional monitoring system with almost no individually customisable settings per device, and where almost everything that can be monitored is automatically discovered.


Observium doesn't seek to totally replace other Open Source projects such as Nagios or Cacti but rather to supplement them with greater understanding of certain devices and technologies. For this reason it's common to see Observium deployed alongside Nagios or Mon to provide alerting and Cacti to provide customised graphing of arbitrary metrics.

Observium integrates specific support for a number of vendor and platform specific features such as Dell OMSA on Linux platforms, Net-SNMP statistics as well as a number of Cisco-specific features such as Cisco Discovery Protocol, inventory tracking and VLAN tracking. The FreeBSD-based firewall, m0n0wall[1], was modified to allow Observium to identify and monitor it.

Observium uses the GeSHi, RANCID, and jpgraph software packages to extend its features, and can be integrated with Nagios to provide alerts and Collectd to provide more detailed graphs for UNIX-like hosts.[2]

Observium has specialised support for IPv6 address tracking, VRF and Pseudowire tracking, VLAN tracking via VTP-MIB and QBRIDGE-MIB, BGP session tracking via BGP4-MIB, CISCO-BGP4-MIB and BGP4-V2-MIB-JUNIPER and device inventory tracking via ENTITY-MIB.


Observium has changed names a few times from Project Observer (2006–2008) to ObserverNMS (2008–2010) and finally to Observium.[3]

Observium is actively maintained developed by a team of developers and contributors, a monthly list of changes can be found on their website.[4]

Observium was featured on Episode 180 of the TWiT show FLOSS Weekly. The show included an hour-long interview with the project's founder.[5]

Observium ran a Kickstarter campaign starting on April 25th 2013 to raise funds to develop alerting features for Observium. The campaign was fully funded by Dutch ISP Atrato and went on to double its initial goal.[6][7][8]

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