Nagstamon is a Nagios status monitor for the desktop. It connects to multiple Nagios, Icinga, Opsview, Centreon, Op5 Monitor/Ninja, Check_MK Multisite and Thruk monitoring servers and resides in systray or as a floating statusbar at the desktop showing a brief summary of critical, warning, unknown, unreachable and down hosts and services and pops up a detailed status overview when moving the mouse pointer over it. Connecting to displayed hosts and services is easily established by context menu via SSH, RDP and VNC or any self defined actions. Users can be notified by sound. Hosts and services can be filtered by category and regular expressions.

It is inspired by Nagios Checker for Firefox - just without an open Firefox window all the time to monitor the network.

Nagstamon is released under the GPLv2 and free to use and modify.

Nagstamon is written in Python so it is highly portable. It has been tested successfully on Ubuntu 8.04 - 13.10, Debian 5.0 - 7.0, Fedora 8 - 19, OpenSUSE 11.x, Windows 2000 + XP + XP 64bit + Vista + Windows 7 + 8 + Windows 2008 Server, OpenSolaris 2009.06, NetBSD, OpenBSD, FreeBSD and MacOS X.
It works with GNOME, KDE, Windows and MacOS X desktop.

Successfully tested monitor versions include:

  • Nagios 1.x, 2.x, 3.x and 4.x
  • Icinga 1.2+
  • Opsview 3.5+
  • Centreon 2.1.x
  • Op5 Monitor 6.3+
  • Check_MK/Multisite 1.1.10+
  • Thruk 1.5.0+
  • Zabbix 2.2 (experimental!)

Attention: If you use any version prior to 0.9.10 please upgrade immediately or disable automatic check for updates. This latest version fixes a major security bug. See details

Last Changes

2014-09-22: Version 1.0.1

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  • added option to disable system keyring storage to prevent crashes
  • reverted default sorting order to "Descending"
  • compiled to run on vintage systems like Windows XP
  • fixed vanishing Nagstamon submenu in Ubuntu Appindicator
  • fixed too narrow fullscreen display

2014-07-28: Version 1.0

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  • added custom event notification with custom commands
  • added highlighting of new events
  • added storage of passwords in OS keyring
  • added optional tooltip for full status information
  • added support for applying custom actions to specific monitor only
  • added copy buttons for servers and actions dialogs
  • added stopping notification if event already vanished
  • added support for Op5Monitor 6.3 instead of Ninja
  • added experimental Zabbix support
  • added automatic refreshing after acknowledging
  • added permanent hamburger menu
  • unified layout of dialogs
  • various Check_MK improvements
  • fixed old regression not-staying-on-top-bug
  • fixed Check_MK-Recheck-DOS-bug
  • fixed pop window size calculation on multiple screens
  • fixed following popup window on multiple screens
  • fixed hiding dialogs in MacOSX
  • fixed ugly statusbar font in MacOSX
  • fixed use of changed colors
  • fixed non-ascending default sort order
  • fixed Opsview downtime dialog
  • fixed sometimes not working context menu
  • fixed some GUI glitches
  • fixed password saving bug
  • fixed Centreon language inconsistencies
  • fixed regression Umlaut bug

Unstable development version Nagstamon 2.0:

Get unstable Windows and Mac OSX binaries at https://nagstamon.ifw-dresden.de/files-nagstamon/unstable.

Source code is available at https://github.com/HenriWahl/Nagstamon.

Nagstamon RSS feed


April 29th 2016
Status window now shrinks and increases horizontal size automatically, fixed Check_MK
April 27th 2016
Added status window option to systray menu as fix for Ubuntu
April 26th 2016
Clipboard integration, Customization of browser possible, fixed Check_MK notification filter
April 19th 2016
Allow customization of alternating colors, fixes missing context menu in OSX
April 15th 2016
Use more efficient table, use alternating colors instead of grid, fixes for Icinga2
March 7th 2016
Check if already running, fixed OSX focus problem, ignore BadStatusLine errors, renamed Icinga2 more correctly to IcingaWeb2
March 3rd 2016
Icinga2 support, check for configured server, fixes for XFCE, better commandline parsing
February 19th 2016
Packages for Fedora and Debian based distros available
February 16th 2016
Setup.exe files for Win32 and Win64 available
February 6th 2016
Authentication dialog works, errors are displayed, grid option works