License: GPL-3.0

Language: JavaScript

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LibreNMS is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more. LibreNMS is a community-based fork of Observium.

We intend LibreNMS to be a viable project and community that:

  • encourages contribution,
  • focuses on the needs of its users, and
  • offers a welcoming, friendly environment for everyone.

The Debian Social Contract will be the basis of our priority system, and mutual respect is the basis of our behaviour towards others. For more about the culture we're trying to build, please read the Freenode philosophy, including guidelines for running an IRC channel and being a community catalyst.


Documentation can be found in the doc directory or, including instructions for installing and contributing.


You can participate in the project by:

VM image

You can try LibreNMS by downloading a VM image. Currently, a Ubuntu-based image is supplied and has been tested with VirtualBox.

Download the VirtualBox / VMWare image and open it then log in with credentials provided. Enter the following command:


You'll then need to find out the IP of your VM (ifconfig | grep add) and create a DNS entry for to point to that IP. You can also edit your /etc/hosts file with the following line:


where $ip is the IP of your VM.

Add a new user by entering:

./adduser.php <username> <password> 10 <email>

replace , and with a username, password and your email address.

From there, just point your web browser to and login with your new username and password.


Copyright (C) 2006-2012 Adam Armstrong

Copyright (C) 2013-2016 by individual LibreNMS contributors

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see

LICENSE.txt contains a copy of the full GPLv3 licensing conditions.

The following additional license conditions apply to LibreNMS (a GPL exception):

As a special exception, you have permission to link or otherwise combine LibreNMS with the included copies of the following third-party software, and distribute modified versions, as long as you follow the requirements of the GNU GPL v3 in regard to all of the remaining software (comprising LibreNMS).

Please see Acknowledgements

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Neil Lathwood Daniel Preussker Paul Gear Dave Leaver Tony Murray Søren Rosiak Javier Sánchez - Marín Walter Dal Mut Clint Armstrong Mike Rostermund Vincent Brouté Brandon Aaron Brandon Aaron HenocKA Arjit Chaudhary Arjit Chaudhary David S Morse crcro Aaron Daniels Aaron Daniels

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