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Introduction ​

Thruk is a monitoring web interface for multiple backends. It supports Naemon, Nagios, Icinga and Shinken through the Livestatus API. It is designed as a drop-in replacement and covers almost 100% of the original features. It adds support for large installations and improves usability.

Main features

  • Multiple backends
  • Faster, no need to parse status.dat for every request
  • Less CPU usage
  • Displays live data, no delay between core and GUI
  • Independent of the monitoring core, can be installed on a remote host
  • Can be clustered across multiple hosts
  • Change status.cgi filter inline
  • Extended logfile search
  • Better logging, uses log4perl (who submitted which command?)
  • Valid HTML code
  • No frames (can be reenabled for better addon integration)
  • Easy to extend with plugins
  • Pagination
  • Multiple themes included
  • Excel export for status and logfiles
  • Adjustable side menu
  • Fully expanded plugin command line for easy testing
  • Save searches in personal bookmarks
  • Config Tool included
  • Mobile interface included
  • SLA Reports in PDF format
  • Recurring Downtimes
  • Fully Featured Dashboard
  • Business Process Addon

How it works ​

Thruk uses Perl and the Plack Framework. It connects to monitoring backends through the Monitoring::Livestatus Perl module. Thruk runs as a fastcgi process. It calculates availability with Monitoring::Availability. The Apache webserver provides authentication, for example with mod_auth_basic, mod_auth_ldap or mod_auth_mysql.

Thruk architectureThruk Architecture

Reasons to choose Thruk ​

Multi Site Support ​

Thruk connects to as many cores as you want. You can combine Naemon, Nagios, Icinga and Shinken instances in one view. This gives you an overview of all installations across independent locations. You can organize sites into groups.

Multi Site

Flexible Dashboard ​

The Thruk Panorama plugin provides dashboards. Each user can create dashboards and share them with colleagues. You can position elements, backgrounds and images freely. To create a control center, link dashboards together and connect them to actions.

Dashboard

SLA Reports ​

The 'reporting' plugin creates SLA reports in HTML and PDF format. It can send the reports by email at regular intervals. You can also turn any page in Thruk into a recurring email report.

SLA Reporting

Business Process Integration ​

Use the Business Process addon to model your important applications and business processes. It includes an online editor and notifications.

Business Process

Excel Export and Bookmarks ​

Use Bookmarks to save searches as personal menu items. To change the menu for all users, edit menu_local.conf.

The Excel export creates real Excel files which can be sent by email or used to extract hostnames and other information.

Bookmarks and Excel Export

Config Tool ​

Use the Config Tool to change monitoring objects and the Thruk configuration. You can also manage user access through htpasswd files and change cgi.cfg settings.

Config Tool

Sending Multiple Commands ​

Use the status pages to send multiple commands at once, including host and service commands together. When you reschedule host and service checks, Thruk waits for each check to finish and displays the result as soon as it returns.

Multiple Commands

Easy Filtering ​

Change host and service filters without entering numbers in the URL. Combine multiple filters to create views. Use the Ajax search to find host and service names. Filters also support regular expressions.

Easy Filtering

PNP4Nagios Graphs ​

When your action_url contains /pnp4nagios/, Thruk displays a performance history graph for the host or service. Follow the graph's link to PNP4Nagios for details.

PNP4Nagios

Multiple Lines of Plugin Output ​

When a check returns multiple lines of plugin output, Thruk marks the output in blue. Click it to see the complete output. This is especially useful for check_multi checks.

Comments and downtimes also have popups with their data. You can see who added a comment and when a downtime occurs without opening the host/service page.

Multiple Lines of Plugin Output

Mine Map ​

The Mine Map gives an overview of services across hosts. It is especially useful when many hosts share the same services. Otherwise, use hostgroups or servicegroups. The Mine Map also supports normal filtering.

Mine Map