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Nagios vs Riemann

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NagiosMonitoring & Observability
RiemannMonitoring & Observability
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Free

Monitoring & Observability

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Free
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Monitoring & Observability

Overview
Focus
Monitoring & Observability
Monitoring & Observability
Product
Nagios is a veteran IT infrastructure monitoring system for servers, networks, applications, and services with alerting and reporting capabilities.
Network event stream processing system for monitoring distributed systems with a powerful stream processing language.
Headquarters
Saint Paul, Minnesota
Community Project
Company size
51-200 employees
2-10 employees
Founded
1999
2012
Pricing details
Published rate
Free
Free options
Free plan
Free plan, Free trial
Source updated
Oct 29, 2026
Oct 29, 2026

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Monitoring & Observability