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Welcome to NMIS Documentation

Open source network management system for SNMP-based monitoring. Discover, monitor, and manage network devices with real-time performance data and intelligent alerting.

Get StartedInstallation Guide
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Quick Start

Get NMIS up and running in minutes with our streamlined installation process.

1

Install NMIS

Download and run the installer script. NMIS supports RedHat/CentOS, Debian, and Ubuntu distributions.
# Download the installer
wget https://github.com/Opmantek/nmis9/releases/latest/download/nmis9-installer.run
chmod +x nmis9-installer.run

# Run the installer
sudo ./nmis9-installer.run
The installer will automatically detect your OS, install dependencies, and configure NMIS.
2

Access the Web Interface

Once installation completes, access the NMIS web interface at http://your-server:8080/nmis9.Default credentials:
  • Username: nmis
  • Password: nm1888
Change the default password immediately after first login for security.
3

Add Your First Device

Use the CLI to add a network device for monitoring:
sudo /usr/local/nmis9/bin/nmis-cli act=create node=router1 \
  host=192.168.1.1 \
  community=public \
  group=Network
NMIS will automatically discover the device, collect SNMP data, and begin monitoring.
4

View Performance Data

Navigate to Nodes in the web interface to see your device. Click on the device name to view:
  • Real-time interface statistics
  • CPU and memory utilization
  • Performance graphs
  • Event history
Data collection runs every 5 minutes by default. Configure polling intervals in Configuration → Polling.

Key Features

Enterprise-grade network monitoring capabilities in an open source platform.

Network Discovery

Automatically discover network devices via SNMP, with support for subnet scanning and CDP/LLDP neighbor detection.

SNMP Monitoring

Comprehensive SNMP v1/v2c/v3 support with real-time polling of performance metrics and interface statistics.

Device Management

Centralized management of network nodes with flexible grouping, tagging, and organizational hierarchies.

Performance Data

High-resolution time-series data with RRD-based storage and customizable retention policies.

Event Management

Intelligent alerting with event correlation, escalation policies, and multi-channel notifications.

Vendor Support

Pre-built models for Cisco, Huawei, Juniper, F5, and hundreds of other network vendors.

Explore by Topic

Deep dive into NMIS configuration, administration, and development.

Configuration

Configure nodes, models, access control, and system settings for your NMIS deployment.

Learn more

Administration

Master the CLI tools, database management, backup procedures, and troubleshooting techniques.

Learn more

Device Models

Explore pre-built vendor models and learn how to create custom models for your devices.

Learn more

API Reference

Comprehensive reference for NMIS Perl libraries and CLI commands for automation and integration.

Learn more

Deployment Options

Choose the deployment method that fits your infrastructure.

Docker Deployment

Run NMIS in containers with Docker Compose for quick setup and easy scaling.

System Requirements

Review hardware, software, and network requirements for production deployments.

Community & Support

Get help, contribute, and connect with the NMIS community.

GitHub

View source code, report issues, and contribute to development.

Visit Repository

Documentation

Official community documentation and user guides.

Visit Docs

Commercial Support

Get professional support and enterprise features from FirstWave.

Contact Sales

Ready to Start Monitoring?

Install NMIS today and gain complete visibility into your network infrastructure in minutes.

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