Nagios, an open-source computer-software application, monitors systems, networks and infrastructure. Nagios offers monitoring and alerting services for servers, switches, applications and services. It alerts users when things go wrong and alerts them a second time when the problem has been resolved. Ethan Galstad and a group of developers originally wrote Nagios as NetSaint. As of 2015 "Agios" also transliterates the Greek word, which means "saint".
Sample Customers
Fortra's Intermapper
Greater Media Detroit, University of British Columbia, Don's Farm Supply
Fortra's Network Server Suite
Mizuno USA, SunGard, City of Corpus Cristi, Plan International
Fortra's Tripwire Log Center
1. Aetna 2. Adobe 3. ADP 4. Airbus 5. Amazon 6. American Express 7. Aon 8. ATT 9. Bank of America 10. Barclays 11. BASF 12. Bayer 13. Bechtel 14. Boeing 15. BNP Paribas 16. Cisco 17. CocaCola 18. Comcast 19. Dell 20. Deutsche Bank 21. Eni 22. ExxonMobil 23. Ford 24. GE 25. Google 26. HP 27. IBM 28. Intel 29. JPMorgan Chase 30. Kelloggs 31. Lockheed Martin 32. McDonald's
Nagios XI
Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Nagios Core
Airbnb, Cisco, PayPal, FanDuel
Nagios Fusion
NuBlue, St.Elisabeth Hospital, Akamit Systems, National Radio Astronomy Observatory, ValueClick, Sunrise Banks
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