Sold by: Supported Images
Deployed on AWS
AWS Free Tier
This is a repackaged software product wherein additional charges apply for a pre-hardened, SI Core STIG Hardened image and seller support. Nagios Core 4.5.13 on Ubuntu 26.04 LTS is a powerful monitoring solution designed to provide critical insights into your infrastructure's health and performance. With Nagios Core 4.5.13, you can effortlessly monitor network services, host resources, and server uptime, ensuring maximum availability and minimizing downtime. The STIG Hardened image enhances security by meeting stringent compliance standards, making it ideal for government or sensitive environments. Deploying Nagios Core 4.5.13 on Ubuntu 26.04 LTS allows seamless integration into your existing ecosystem, enabling proactive issue resolution and optimizing resource utilization for your enterprise.
4.5
Overview
Nagios Core 4.5.13 on Ubuntu 26.04 LTS offers a powerful open-source monitoring solution that is critical for maintaining system performance and reliability. With this AMI, users can deploy Nagios Core 4.5.13 quickly and easily, leveraging the stability of Ubuntu 26.04 LTS as a foundation for robust operation.
This version of Nagios Core includes enhanced features for monitoring network services, host resources, and server health metrics. Its intuitive web interface provides real-time information, allowing administrators to visually track system status and issues easily. The AMI comes pre-configured to facilitate immediate setup, significantly reducing deployment time and effort.
Key benefits of Nagios Core 4.5.13 on Ubuntu 26.04 LTS include:
- Comprehensive Monitoring: Track application performance, detect outages, and ensure service availability across your infrastructure.
- Extensibility: Customize monitoring capabilities with an extensive array of plugins and integrations, ensuring that Nagios Core 4.5.13 on Ubuntu 26.04 LTS can adapt to your specific environment.
- Alerting and Notifications: Stay informed with powerful alerting capabilities, allowing for immediate notification of potential issues via email or SMS.
- Scalability: Efficiently scale your monitoring setup to support larger networks and distributed systems without sacrificing performance.
Ideal for IT operations teams, system administrators, and DevOps professionals, Nagios Core 4.5.13 on Ubuntu 26.04 LTS is perfect for enterprises looking to maintain optimal performance and enhance visibility into their IT infrastructure. By choosing this AMI, users can harness the full capabilities of Nagios Core to respond proactively to system alerts and maintain service continuity.
Hardening and Support
This is a repackaged software product wherein additional charges apply for a pre-hardened, Supported Images Core STIG Hardened image and seller support. Additional detailed information on our hardening process can be found in the Core STIG Hardening for Linux Guide or the Core STIG Hardening for Windows Guide
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Highlights
- Nagios Core 4.5.13 provides robust monitoring capabilities for your IT infrastructure. This AMI is pre-configured on Ubuntu 26.04 LTS, allowing for easy deployment in the AWS cloud. With its powerful alerting system, it ensures that critical issues are identified promptly, enabling teams to maintain optimal system performance and availability across various services, including servers, applications, and network components.
- This AMI supports extensive customization options, allowing users to tailor monitoring parameters to their unique operational requirements. Nagios Core's flexibility in configuring checks, thresholds, and notifications means you can adapt your monitoring strategy to ensure maximum reliability. The extensive plugin architecture further enhances its functionality, allowing integration with numerous third-party tools and services to create a unified monitoring experience.
- Nagios Core is ideal for DevOps teams and IT administrators looking to enhance their monitoring capabilities in cloud environments. With the ability to scale seamlessly, it is suitable for small applications as well as large enterprise-level systems. The comprehensive web interface provides real-time monitoring data, making it easier to visualize system health and performance while reducing downtime through proactive incident management.
Details
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Delivery method
Delivery option
64-bit (x86) Amazon Machine Image (AMI)
Latest version
Operating system
Ubuntu 26.04
Deployed on AWS
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Pricing
Pricing is based on actual usage, with charges varying according to how much you consume. Subscriptions have no end date and may be canceled any time. Alternatively, you can pay upfront for a contract, which typically covers your anticipated usage for the contract duration. Any usage beyond contract will incur additional usage-based costs.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
If you are an AWS Free Tier customer with a free plan, you are eligible to subscribe to this offer. You can use free credits to cover the cost of eligible AWS infrastructure. See AWS Free Tier for more details. If you created an AWS account before July 15th, 2025, and qualify for the Legacy AWS Free Tier, Amazon EC2 charges for Micro instances are free for up to 750 hours per month. See Legacy AWS Free Tier for more details.
Dimension | Cost/hour |
|---|---|
t2.xlarge Recommended | $0.28 |
t2.micro | $0.21 |
t3.micro | $0.07 |
c1.medium | $0.14 |
c1.xlarge | $0.28 |
c3.2xlarge | $0.56 |
c3.4xlarge | $1.12 |
c3.8xlarge | $2.24 |
c3.large | $0.14 |
c3.xlarge | $0.28 |
Dimensions summary
You pay by the hour for the running software image, billed through your AWS account. Pricing is set per EC2 instance type, so your rate depends on the instance you choose to run. Each instance family and size — from small burstable options to large compute, memory, storage, and accelerated instances — carries its own hourly rate. Larger instances with more CPU, memory, or specialized hardware cost more per hour. You are not locked into a term; charges accrue only while an instance runs. Standard AWS infrastructure fees apply separately from this software rate.
Top-of-mind questions for buyers
The hourly rate covers the software image itself — Nagios Core preconfigured on hardened Ubuntu. It is billed per running EC2 instance-hour. Standard AWS infrastructure charges, such as compute, storage, and data transfer, are billed separately by AWS and are not part of this software rate.
The software rate meters running time only. When you stop or terminate an instance, software charges stop accruing. Stopped instances may still incur AWS storage fees for attached volumes, but those are separate AWS charges, not the per-hour software rate shown here.
You select one EC2 instance type at launch. Your hourly software rate is tied to that choice. Larger instances with more CPU, memory, storage, or accelerated hardware carry higher rates. You can run different instance types, but each one bills at its own listed hourly rate.
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Vendor refund policy
The instance can be terminated at anytime to stop incurring charges
Legal
Vendor terms and conditions
Upon subscribing to this product, you must acknowledge and agree to the terms and conditions outlined in the vendor's End User License Agreement (EULA) .
Content disclaimer
Vendors are responsible for their product descriptions and other product content. AWS does not warrant that vendors' product descriptions or other product content are accurate, complete, reliable, current, or error-free.
Delivery details
64-bit (x86) Amazon Machine Image (AMI)
Amazon Machine Image (AMI)
An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
Latest Updates
Additional details
Usage instructions
Once the instance is running, connect to it using a Secure Shell (SSH) client with the configured SSH key. The default username is 'ubuntu'.
OS commands via SSH: SSH as user 'ubuntu' to the running instance and use sudo to run commands requiring root access.
User interface: http://instance-ip/nagios/ Username: nagiosadmin Password: (instance-id of the launched instance)
Nagios config location /usr/local/nagios/etc/nagios.cfg
Verify nagios configuration: /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
Add additional login users with the following command: htpasswd /usr/local/nagios/etc/htpasswd.users <USERNAME>
Resources
Support
Vendor support
Email support for this AMI is available through the following: https://supportedimages.com/support/ OR support@supportedimages.com
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
Updated weekly
By Supported Images
By Red Hat Limited
AI generated from product descriptions
Real-time Monitoring and Alerting
Nagios Core 4.5.13 provides real-time monitoring of network services, host resources, and server health metrics with powerful alerting capabilities for immediate notification of potential issues via email or SMS.
Plugin Architecture and Extensibility
Extensive plugin architecture enables customization of monitoring capabilities and integration with numerous third-party tools and services for unified monitoring experience.
Web-based Management Interface
Intuitive web interface provides real-time visualization of system status, performance metrics, and infrastructure health with comprehensive monitoring data display.
STIG Hardening Compliance
Pre-hardened image meets stringent Security Technical Implementation Guide (STIG) compliance standards for government and sensitive environments.
Scalable Infrastructure Monitoring
Supports seamless scaling to monitor larger networks and distributed systems without sacrificing performance, suitable for small applications to large enterprise-level deployments.
SELinux Security Enforcement
SELinux enforcement enabled by default to provide mandatory access control and security policy enforcement
Cloud-Init Automation Integration
Built-in cloud-init support for automated provisioning workflows and instance configuration during deployment
ENA Networking Support
Enhanced Networking Adapter (ENA) support optimized for AWS EC2 instances to improve network performance
Automatic Security Updates at Launch
System synchronizes with upstream repositories during first boot to install newest security updates and package revisions
CentOS Stream Development Tracking
Continuously delivered Linux distribution that tracks the development path leading to future Red Hat Enterprise Linux releases
In-Place Linux Distribution Conversion
Convert2RHEL tooling enables in-place conversion of instances running on rpm-based Linux distributions to Red Hat Enterprise Linux 7 while preserving existing customizations, configurations, and preferences.
Extended Security Support
Extended Life Cycle Support (ELS) provides access to security patches and updates until June 2029, extending support five years beyond the CentOS Linux 7 end-of-life date.
High Availability Support
High Availability tooling and capabilities included for configuring and managing highly available infrastructure and applications.
System Observability and Management
Red Hat Insights integration provides monitoring, analysis, and remediation capabilities for security, stability, and performance issues across workloads, applications, and platforms.
Cross-Infrastructure Consistency
Unified operating foundation supporting consistent management and deployment across physical, virtual, private cloud, public cloud, and edge environments.
Standard contract
No
Customer reviews
Shreeram R.
Nagios Core 4.x Review
Reviewed on Aug 07, 2025
Review provided by G2
What do you like best about the product?
It is open source and easily deployable with most of the required features. easy to implement.
What do you dislike about the product?
the product bit lack in integrating new generation devices
What problems is the product solving and how is that benefiting you?
The product provides the most of the systems, devices and applications monitoring. Overall a good product with loaded features.
Printing
Nagios Core works pretty well with Ubuntu 18
Reviewed on Feb 23, 2024
Review provided by G2
What do you like best about the product?
Open Source and Free: Nagios Core, being an open-source tool, is highly favored by organizations and individuals who prefer transparent, cost-effective solutions for network monitoring. Being one of the most popular monitoring tools, Nagios has a large, active community
What do you dislike about the product?
Sometimes it is not that easy to properly setup Nagios Core.
What problems is the product solving and how is that benefiting you?
It helps me properly monitor my whole environment, and the option to have some self-customized scripts to integrate with Nagios is great. Also, integrating with Zenduty to send pagers whenever a critical alert is triggered.
Santanu D.
Best Open Source Network Monitoring Application
Reviewed on Jun 22, 2022
Review provided by G2
What do you like best about the product?
It can remotely monitor specific operating system parameters and send alerts via mail or SMS
What do you dislike about the product?
Customer Support should be better. Otherthan all is ok till now.
What problems is the product solving and how is that benefiting you?
it will easily evaluate and track the issue. Also, the email and SMS function is very useful, so we get informed at very crucial times with findings, and also generate templates for popular endpoints which make it very better.
Recommendations to others considering the product:
yes