Download Nagios Core

Latest Releases

Don’t see the version you need? View older Nagios Core releases.

Version Release Date
nagios-4.5.11.tar.gz 2026-1-15
nagios-4.5.10.tar.gz 2025-10-28
nagios-4.5.9.tar.gz 2024-12-19

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System Requirements

Minimum requirements for Nagios Core

Hardware Requirements

  • CPU: 2 cores minimum (4+ recommended for larger deployments)
  • RAM: 2GB minimum (4GB+ recommended)
  • Disk: 20GB free space minimum
  • Network: Reliable network connectivity

Supported Linux Distributions

  • Ubuntu 20.04 LTS, 22.04 LTS, 24.04 LTS
  • CentOS 7, 8, Stream
  • Debian 10, 11, 12
  • Red Hat Enterprise Linux 7, 8, 9
  • Other Linux distributions (may require manual configuration)

Software Requirements

  • Web Server: Apache 2.x or Nginx
  • PHP: Version 7.0 or higher
  • C Compiler: GCC or compatible for building from source

Operating System

Linux-based OS (Ubuntu, CentOS, Debian, RHEL, or compatible)

View Detailed Installation Requirements

Resources & Support

Documentation

Developer Resources

Community & Support