Nagios

From Wikipedia, the free encyclopedia

You have new messages (last change).
Nagios

Screenshot of the Nagios web interface
Author: Ethan Galstad
Initial release: May 10, 2002
Latest release: 2.8 / March 08, 2007
Preview release: 3.0a1 / March 06, 2007
OS: Unix-like
Use: Network monitoring
License: GNU General Public License
Website: www.nagios.org

Nagios is a popular open source computer system and network monitoring application software. It watches hosts and services that you specify, alerting you when things go bad and again when they get better.

Nagios (pronounced "NAH-gee-ohs" with a hard 'G' like geese), originally created under the Netsaint name, was written and is currently maintained by Ethan Galstad, along with an army of developers actively maintaining both official and unofficial plugins.

Nagios was originally designed to run under Linux, but also runs well on other Unix variants.

Nagios is licensed under the GNU General Public License Version 2 as published by the Free Software Foundation.

Contents

[edit] Overview

  • Monitoring of network services (SMTP, POP3, HTTP, NNTP, ICMP, SNMP, FTP, SSH)
  • Monitoring of host resources (processor load, disk usage, system logs) on a majority of network operating systems, even Microsoft Windows with the NRPE_NT plugins.
  • Monitoring of anything else like probes (temperature, alarms...) which have the ability to send collected data via a network to specifically written plugins
  • Remote monitoring supported through SSH or SSL encrypted tunnels.
  • Simple plugin design that allows users to easily develop their own service checks depending on needs, by using the tools of choice (Bash, C++, Perl, Ruby, Python, PHP, C#, etc.)
  • Parallelized service checks
  • Ability to define network host hierarchy using "parent" hosts, allowing detection of and distinction between hosts that are down and those that are unreachable
  • Contact notifications when service or host problems occur and get resolved (via email, pager, SMS, or any user-defined method through plugin system)
  • Ability to define event handlers to be run during service or host events for proactive problem resolution
  • Automatic log file rotation
  • Support for implementing redundant monitoring hosts
  • Optional web interface for viewing current network status, notifications, problem history, log files, etc.

[edit] Nagios Meaning

According to Ethan Galstad's official FAQ on the Nagios site N.A.G.I.O.S. is a recursive acronym: "Nagios Ain't Gonna Insist On Sainthood". It's a reference to the original incarnation of the software under the name Netsaint.

[edit] External links

[edit] Books

Retrieved from "http://en.wikipedia.org../../../n/a/g/Nagios.html"