Nagios Core Description
Nagios Core, the monitoring and alerting engine, is the core application that powers hundreds of Nagios project development. Nagios Core is the event scheduler, event processor, alert manager, and monitor for elements. It has several APIs that can be used to extend its capabilities to do additional tasks. It is implemented in C for performance reasons and is designed to run natively under Linux/*nix systems.
Nagios Core Alternatives
AdRem NetCrunch
NetCrunch is a next-gen, agentless infrastructure and traffic network monitoring system designed for hybrid, multi-site, and fast changing infrastructures. It combines real-time observability with alert automation and intelligent escalation to eliminate the overhead and limitations of legacy tools like PRTG or SolarWinds. NetCrunch supports agentless monitoring of thousands of nodes from a single server-covering physical devices, virtual machines, servers, traffic flows, cloud services (AWS, Azure, GCP), SNMP, syslogs, Windows Events, IoT, telemetry, and more.
Unlike sensor-based tools, NetCrunch uses node-based licensing and policy-driven configuration to streamline monitoring, reduce costs, and eliminate sensor micromanagement. 670+ built-in monitoring packs apply instantly based on device type, ensuring consistency across the network.
NetCrunch delivers real-time, dynamic maps and dashboards that update without manual refreshes, giving users immediate visibility into issues and performance. Its smart alerting engine features root cause correlation, suppression, predictive triggers, and over 40 response actions including scripts, API calls, notifications, and integrations with Jira, Teams, Slack, Amazon SNS, MQTT, PagerDuty, and more.
Its powerful REST API makes NetCrunch perfect for flow automation, including integration with asset management, production/IoT/operations monitoring and other IT systems with ease.
Whether replacing an aging platform or modernizing enterprise observability, NetCrunch offers full-stack coverage with unmatched flexibility. Fast to deploy, simple to manage, and built to scale-NetCrunch is the smarter, faster, and future-ready monitoring system. Designed for on-prem (including air-gapped), cloud self-hosted or hybrid networks.
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Atera
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Uptime.com
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G2, Sourceforge and TechRadar Pro have recognized us as one of the world’s best uptime monitors for several consecutive years, including this one. Try 100% free.
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ManageEngine OpManager
OpManager is the ideal end-to-end network monitoring tool for your organization's network. With OpManager, you can keep a close eye on health, performance, and availability levels of all network devices. This includes monitoring switches, routers, LANs, WLCs, IP addresses and firewalls.
Insights into your hardware health and performance; monitor CPU, memory, temperature, disk usage, and more to improve efficiency.
Seamlessly manage faults and alerts with instant notifications and detailed logs.
Streamlined workflows facilitate easy set-up to execute quick diagnosis and corrective measures.
The solution also comes with powerful visualization tools such as business views, 3d data center views, topology maps, heat maps, and customizable dashboards.
Get proactive in capacity planning and decision-making with over 250 predefined reports covering all important metrics and areas in your network.
Overall, OpManager's detailed management capabilities make it the ideal solution for IT administrators to achieve network resiliency and efficiency.
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Pricing
Free Version:
Yes
Free Trial:
Yes
Integrations
Company Details
Company:
Nagios Enterprises
Year Founded:
2007
Headquarters:
United States
Website:
www.nagios.com/products/nagios-core/
Media
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Product Details
Platforms
Web-Based
Linux
Types of Training
Training Docs
Live Training (Online)
Webinars
Customer Support
Business Hours
Nagios Core Features and Options
System Monitoring Software
Alerts / Notifications
Antivirus Management
Data Backup / Recovery
Device Monitoring
Inventory Management
Patch Management
Policy-based Automation
Remote Monitoring
Reporting / Analytics
Risk Analysis
Server Monitoring
Service Configuration Management
IT Infrastructure Monitoring Tool
Alerts / Notifications
Application Monitoring
Bandwidth Monitoring
Capacity Planning
Configuration Change Management
Data Movement Monitoring
Health Monitoring
Multi-Platform Support
Performance Monitoring
Point-in-Time Visibility
Reporting / Analytics
Virtual Machine Monitoring
Website Monitoring Software
Availability Testing
Event Logs
Event-Based Notifications
FTP Monitoring
Mail Server Monitoring
Maintenance Scheduling
Performance Metrics
Real Time Monitoring
Transaction Monitoring
Uptime Reporting
Nagios Core Lists
Nagios Core User Reviews
Write a Review-
Likelihood to Recommend to Others1 2 3 4 5 6 7 8 9 10
Great product Date: Feb 06 2025
Summary: I’d recommend this product. It relatively easy to use with all the available online Resources from Nagios.
Positive: The online resources available make using Nagios a breeze. The installation was simple to do following documentation and online video tutorials.
Negative: Super busy website . Had to click more than one download button. But honestly that was the worst of it. Not bad.
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