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NAGIOS

The Industry Standard in Open Source Monitoring
by

Yll Bytyqi

on 20 April 2011

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Transcript of NAGIOS

NAGIOS The Industry Standard in Open Source Monitoring OVERVIEW Motivation Nagios Framework Nagios Architecture Grid monitoring nagios XI Interface screenshots Awards and Recognitions Conclusion Nagios A powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes. Originally designed to run under GNU/Linux, It is a free software, licensed under the terms of the GNU General Public License version 2 as published by the Free Software Foundation It provides instant awareness in terms of organization's mission-critical IT infrastructure. Detects and repairs problems and mitigates future issues before they affect end-users and customers. Nagios Framework and Motivation Site admin-centric monitoring Enable better resource availability Achieve complex sensor’s dependencies Report generation simplifaction of grid resource operations issue notifications as soon as problem appears plan for infrastructure upgrades before outdated systems cause failures enables problem isolation relevant notifications are issued ensure your organization's SLAs are being met Visualization and management interface Awareness Visibility Comprehensive Monitoring Customizable Code Problem Remediation Extendable Architecture monitor applications, services, operating systems, network protocols, system metrics and infrastructure components with a single tool Powerful script APIs allow easy monitoring of in-house and custom applications, services, and systems Centralized view of entire monitored IT infrastructure Detailed status information available through web interface Fast detection of infrastructure outages Alerts can be delivered to technical staff via email or SMS Escalation capabilities ensure alert notifications reach the right people Open Source Software Full access to source code Released under the GPL license Event handlers allow automatic restart of failed applications, and services Alert acknowledgments provide communication on known issues and problem response Integration with in-house and third-party applications is easy with multiple APIs Hundreds of community-developed add-ons extend core Nagios functionality Features HOW IT WORKS Ultimately, everything in NAGIOS resolves around service checks No service can run without a host. If the host computer fails, it also cannot provide the desired service. what if, a router is brought into play users system services service may still be running on the target host, but it is nevertheless no longer reachable for the user. Nagios is in a position to reproduce such dependencies and to precisely inform the administrator of the failure of an important network component, instead of flooding the administrator with irrelevant error messages concerning services that cannot be reached. How Nagios handles dependencies of hosts and services pc01 pc02 pc03 srv01 srv02 NAGIOS switch1 switch2 pc01 pc02 pc03 proxy gate DNS firewall Internet Server topology of an example network NAGIOS service host parent host 3 2 1 The order of tests after Service failure pc01 pc02 pc03 srv01 srv02 NAGIOS switch1 switch2 proxy gate firewall DNS internet server UP 4 DOWN 3 UNREACHABLE 2 CRITICAL 1 UNREACHABLE 5 UNREACHABLE 6 pc01 pc02 pc03 CLASSIFICATION OF INDIVIDUAL NETWORK NODES BY nagios Screenshots Xhesika fezga conclusions Over 10 years of active development
Scales to monitor thousands of nodes
Failover capabilities ensure non-stop monitoring of critical IT infrastructure components
Multiple awards, media coverage and recognition prove Nagios' value Stable, Reliable, and Respected Platform
Over 10 years of active development
Scales to monitor thousands of nodes
Failover capabilities ensure non-stop monitoring of critical IT infrastructure components
InfoWorld: Best of
Open Source Software SourceForge Community
Choice Awards 2009-Nagios 2010 SourceForge Community Choice Awards 2009-Nagios LinuxQuestions.org Members Choice Award 2009-Nagios InfoWorld: Best of Open Source Software 2009 awards & recognition Thank You
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