# Nagios

> computer system and network monitoring application software

**Wikidata**: [Q1134360](https://www.wikidata.org/wiki/Q1134360)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Nagios)  
**Source**: https://4ort.xyz/entity/nagios

## Summary
Nagios is a free computer system and network monitoring application software that allows users to freely run, study, change and distribute it and its modified versions. It was originally released in 1999 and runs on Unix-like operating systems.

## Key Facts
- Nagios was founded on March 14, 1999, under the original name NetSaint, which was changed to Nagios in 2002
- It is distributed under the GNU General Public License, making it free software
- Nagios runs exclusively on Unix-like operating systems
- The software has had multiple versions including 4.0.8 (2014), 4.1.1 (2015), 4.2.4 (2016), 4.3.2 (2017), and 4.4.1 (2018)
- Its official website is https://www.nagios.org
- Nagios Plugins are standalone extensions that provide additional functionality to the core Nagios system
- The source code is hosted at https://github.com/NagiosEnterprises/nagioscore
- It is used specifically for network monitoring purposes

## FAQs
### Q: What is Nagios used for?
A: Nagios is used for computer system and network monitoring. It helps organizations monitor their IT infrastructure, detect problems, and ensure systems are running properly.

### Q: Is Nagios free to use?
A: Yes, Nagios is free software distributed under the GNU General Public License, which allows users to freely run, study, change and distribute it and modified versions.

### Q: When was Nagios first released?
A: Nagios was first released on March 14, 1999, under the name NetSaint, which was changed to Nagios in 2002.

### Q: What operating systems does Nagios run on?
A: Nagios runs exclusively on Unix-like operating systems.

### Q: What are Nagios Plugins?
A: Nagios Plugins are standalone extensions to Nagios that provide additional functionality for monitoring various aspects of systems and networks.

## Why It Matters
Nagios matters because it provides a comprehensive solution for monitoring IT infrastructure, which is crucial for maintaining system reliability and preventing downtime. As one of the earliest and most widely adopted network monitoring tools, it set standards for the industry and continues to be relevant in modern IT environments. Its open-source nature has fostered a large community of users and developers who contribute to its ongoing development and create plugins for specialized monitoring needs. Nagios helps organizations identify and resolve issues before they impact users, reducing costs associated with system failures. Its modular architecture allows for customization and scalability, making it suitable for organizations of all sizes.

## Notable For
- Pioneering role in open-source network monitoring since its initial release in 1999
- Extensive plugin ecosystem that allows for monitoring virtually any aspect of IT infrastructure
- Long-standing reputation as a reliable and stable monitoring solution
- Modular architecture that enables customization and scalability
- Transition from NetSaint to Nagios in 2002, marking a significant evolution in the project

## Body
### Overview
Nagios is a computer system and network monitoring application software that was originally released in 1999. It was initially named NetSaint (1999-2002) before being renamed to Nagios in 2002. The software is distributed under the GNU General Public License, making it free software that allows users to freely run, study, change and distribute it and modified versions.

### Technical Requirements
Nagios runs exclusively on Unix-like operating systems. It has been packaged for various Linux distributions including Fedora (nagios package), Gentoo (net-analyzer/nagios-core and net-analyzer/nagios), and openSUSE (nagios package). It is also available on BSD systems through FreeBSD ports (net-mgmt/nagios and net-mgmt/nagios4), OpenBSD ports (net/nagios/nagios), and NetBSD packages (meta-pkgs/nagios and net/nagios-base).

### Version History
Nagios has undergone several version releases:
- Version 4.0.8 was released on 2014-08-12
- Version 4.1.0 was released on 2015-08-18
- Version 4.1.1 (stable version) was released on 2015-08-19
- Version 4.2.0 was released on 2016-08-01
- Version 4.2.1 was released on 2016-09-06
- Version 4.2.2 was released on 2016-10-24
- Version 4.2.3 was released on 2016-11-21
- Version 4.2.4 was released on 2016-12-07
- Version 4.3.2 (stable version) was released on 2017-07-19
- Version 4.4.1 (stable version) was released on 2018-06-25

### Related Components
Nagios Plugins are standalone extensions to Nagios that provide additional functionality for monitoring various aspects of systems and networks. These plugins extend the capabilities of the core Nagios system, allowing users to monitor specific services, applications, and metrics relevant to their environment.

### Development and Community
The source code for Nagios is hosted at https://github.com/NagiosEnterprises/nagioscore. The project has a presence on various platforms including Open Hub (where it has the project ID "nagios"), AlternativeTo (software ID "nagios"), and Repology (project name "nagios"). The software has been translated into multiple languages including Catalan, Czech, German, English, Spanish, French, Croatian, Hungarian, Italian, and Japanese.

### Licensing and Copyright
Nagios is copyrighted by Nagios Enterprises and is distributed under the GNU General Public License. This license allows users to freely run, study, change and distribute the software and its modified versions.

## References

1. [Source](https://github.com/NagiosEnterprises/nagioscore/blob/master/LICENSE)
2. [The nagios Open Source Project on Open Hub: Languages Page. Open Hub](https://www.openhub.net/p/nagios/analyses/latest/languages_summary)
3. [Source](http://www.nagios.org/news/77-news-announcements/382-nagios-core-408-released)
4. [Nagios Core 4.1.1 Has Been Released. 2015](https://www.nagios.org/news/2015/08/nagios-core-4-1-1-has-been-released/)
5. [Source](https://sourceforge.net/projects/nagios/files/nagios-4.x/nagios-4.2.4/)
6. [Release 4.3.2. 2017](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.3.2)
7. [Release 4.4.1. 2018](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.1)
8. [Release 4.1.0. 2015](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.1.0)
9. [Release 4.2.0. 2016](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.2.0)
10. [Release 4.2.1. 2016](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.2.1)
11. [Release 4.2.2. 2016](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.2.2)
12. [Release 4.2.3. 2016](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.2.3)
13. [Release 4.3.0. 2017](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.3.0)
14. [Release 4.3.1. 2017](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.3.1)
15. [Release 4.3.3. 2017](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.3.3)
16. [Release 4.3.4. 2017](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.3.4)
17. [Release 4.4.0. 2018](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.0)
18. [Release 4.4.2. 2018](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.2)
19. [Release 4.4.3. 2019](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.3)
20. [Release 4.4.4. 2019](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.4)
21. [Release 4.4.5. 2019](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.5)
22. [Release 4.4.6. 2020](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.6)
23. [Release 4.4.7. 2022](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.7)
24. [Release 4.4.8. 2022](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.8)
25. [Release 4.4.9. 2022](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.9)
26. [Release 4.4.10. 2023](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.10)
27. [Release 4.4.11. 2023](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.11)
28. [Release 4.4.12. 2023](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.12)
29. [Release 4.4.13. 2023](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.13)
30. [Release 4.4.14. 2023](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.4.14)
31. [Release 4.5.0. 2023](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.0)
32. [Release 4.5.1. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.1)
33. [Release 4.5.2. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.2)
34. [Release 4.5.3. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.3)
35. [Release 4.5.4. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.4)
36. [Release 4.5.5. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.5)
37. [Release 4.5.6. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.6)
38. [Release 4.5.7. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.7)
39. [Release 4.5.8. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.8)
40. [Release 4.5.9. 2024](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.9)
41. [Release 4.5.10. 2025](https://github.com/NagiosEnterprises/nagioscore/releases/tag/nagios-4.5.10)
42. Freebase Data Dumps. 2013
43. [Source](https://www.monitoring-fr.org/2010/06/ou-va-nagios/)
44. [Source](https://igm.univ-mlv.fr/~dr/XPOSE2010/supervision/nagios.html)
45. Quora