Nagios Core Monitoring Server on Ubuntu 24.04

Nagios® Core™ is an Open Source system and network monitoring application. It watches hosts and services that you specify, alerting you when things go bad and when they get better.

Powerful monitoring engine which can scale and manage 1000s of hosts and servers. Comprehensive web dashboard giving the visibility of complete network components and monitoring data. Fast alerting system, sends alerts to admins immediately after any issue is identified.

Multiple plugins available to support Nagios, custom coded plugins can also be used with Nagios.

Why Choose Nagios on Azure?

Deploy Nagios Core in minutes with our pre-configured Azure VM image. Monitor your entire hybrid infrastructure from Azure - including on-premises servers, multi-cloud environments, and Azure-native services. Get enterprise-grade monitoring without the enterprise cost.

Perfect for These Use Cases

• Hybrid Cloud Monitoring: Monitor Azure VMs, on-premises servers, and other cloud platforms from a single dashboard
• DevOps & CI/CD: Integrate monitoring into your development pipeline with API-driven alerting and notifications
• Small to Medium Businesses: Get enterprise monitoring capabilities without expensive licensing fees
• Compliance & Reporting: Generate detailed uptime reports for SLA compliance and auditing
• Multi-location Businesses: Monitor distributed infrastructure across different Azure regions
• Migration Projects: Track application performance during cloud migration initiatives

Azure-Specific Benefits

• Azure Native Integration: Pre-configured to monitor Azure Virtual Machines, Storage Accounts, SQL Databases
• Auto-scaling Support: Monitor dynamic Azure resources that scale up/down automatically
• Cost Optimization: Pay-as-you-use Azure pricing vs expensive commercial monitoring solutions
• Global Deployment: Deploy across any Azure region worldwide in minutes
• Azure AD Integration: Optionally integrate with your existing Azure Active Directory
• Backup & Recovery: Leverage Azure's built-in backup and disaster recovery capabilities

What's Included & Pre-configured

• Nagios Core 4.x fully installed and configured
• Apache web server with SSL ready
• Pre-configured monitoring templates for common services
• Essential plugins package (4000+ available)
• Optimized for Azure VM performance
• Security hardened Ubuntu 24.04 LTS base
• Ready-to-use monitoring dashboard

Nagios Core Features

• Network Monitoring
• Monitoring of network services (SMTP, POP3, HTTP, NNTP, PING, etc.)
• Server Monitoring - monitor Windows servers, Linux servers, Unix servers, Solaris, Mac OS/X, HP-UX, and more
• Application Monitoring
• Linux Server Monitoring
• Windows Server Monitoring
• Azure Monitoring - Azure Active Directory, Azure SQL Database, Azure Storage, PaaS, Compute, Graph API and differential queries and many more resources
• Monitoring of host resources (processor load, disk usage, etc.)
• Ability to define network host hierarchy using "parent" hosts, allowing detection of and distinction between hosts that are down and those that are unreachable
• Alerting - Contact notifications when service or host problems occur and get resolved (via email, pager, or user-defined method)
• Ability to define event handlers to be run during service or host events for proactive problem resolution
• Automatic log file rotation
• Support for implementing redundant monitoring hosts
• Optional web interface for viewing current network status, notification and problem history, log file, etc.
• Install over 4,000+ plugins
• Create Network Maps

Nagios Core Server Setup / Support

Follow our post setup guide - Setup Nagios Core Server on Azure

Disclaimer: Nagios® Core™ is a registered trademark owned by Nagios Enterprises, LLC and is licensed under GNU General Public License V 2. No warrantee of any kind, express or implied, is included with this software. Use at your risk, responsibility for damages (if any) to anyone resulting from the use of this software rest entirely with the user. The author is not responsible for any damage that its use could cause.