Network Management Information System
Network monitoring built for engineers, not bundles.
NMIS is the Linux-native network management platform behind 25+ years of mission-critical networks. Polling intervals you configure per device. Alerting you tune. An open architecture you actually control.
Trusted by thousands of IT teams worldwide.
Why NMIS
Why teams switch to NMIS
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Open licensing
Free for unlimited devices on the open source build. Pro and Enterprise tiers add modules and support. No node tax. No three-year minimum.
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Linux-native
No Windows Server dependency. No MS SQL platform tax. Runs on any Linux distro your team already operates.
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Configurable by default
Polling intervals per device, not fixed across the network. Alerts you actually tune. A business rules engine that's open, not vendor-locked.
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The complete network management system
NMIS helps with fault, performance, and configuration management. It provides performance graphs, threshold alerting, and detailed notification policies with various methods. NMIS monitors an organization’s IT environment, helps identify and rectify faults, and provides valuable information for IT planning.-
NMIS9 Platform Data Sheet
The stack
The full NMIS stack
NMIS at the centre. Add modules alongside, not instead.
NMIS
Monitoring engine: polling, alerting, dashboards. At the centre of the stack.
Add modules as you need them
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Built differently
Most network monitors are built around a node-licensing business model. NMIS is built around how engineers actually run networks.
| Most network monitors | NMIS |
|---|---|
| ✕Windows Server + MS SQL platform requirement | ✓Linux-native, runs on any distro |
| ✕Fixed polling intervals across the estate | ✓Per-device polling intervals you configure |
| ✕Subscription-only, multi-year minimums | ✓Open source free tier, then Pro and Enterprise |
| ✕Node tax: features ratchet your node count | ✓Predictable licensing, no node creep |
| ✕Closed business rules | ✓Open, scriptable, community-contributed |
| ✕Agent dependencies for full coverage | ✓Agentless via SNMP, WMI, SSH |
Features
Smart Monitoring for Any Network. Powered by Open Source.
NMIS leverages the strength of open source to provide comprehensive insights and proactive solutions, enhancing network performance and minimizing downtime. From small businesses to large enterprises, our intelligent monitoring system scales effortlessly to meet your needs.
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Sophisticated business rules engine
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Automated health live baselining
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Visible operational impact
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Pre-configured out-of-the-box solution
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Massively scalable
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Customizable alert escalation procedures
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Sophisticated business rules engine
The engine takes a short time to configure and then it's custom to your operating environment.
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Pre-configured out-of-the-box solution
The simple set-up allows for network management to occur quickly and can easily integrate new technology.
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Automated health live baselining
NMIS measures a baseline of availabiliÂty, response time, performance & automatically shows compared changes to the previous baseline period.
Extensive Device Support
NMIS supports over 10,000 different devices, including routers, switches, firewalls, and servers, with agentless polling via SNMP, WMI, and SSH.
Powered by Open Source
At the heart of NMIS is a powerful open-source foundation. This ensures unparalleled flexibility and transparency, allowing you to customize and extend the platform to fit your unique requirements. Being open source means you benefit from continuous innovation and contributions from a global community of developers and users dedicated to enhancing network management.
Pricing
Predictable licensing
Three tiers. Start with the open source build, move up only when you need it.
Migration
Already running another network monitor?
NMIS installs alongside it. Discovery runs in parallel for the trial period. No agents on the existing system, no downtime. When you're ready to cut over, you have months of side-by-side data showing exactly what changes.
Side-by-side trials catch the alerts your incumbent missed, the devices it can't see, and the polling intervals your engineers actually want.
Compliance
Compliance and audit-ready
NMIS with opConfig gives you the audit trail (change history, configuration baselines, configuration drift detection) that your security team needs for NIST CSF, ISO 27001, and CIS Controls reporting. Pairs with Open-AudIT for inventory-led compliance.
Customers
Trusted by teams who run it
With NMIS and FirstWave we have a true partner that we can rely on to make sure we are on top of any issues on our network and have good data and analytics to make sure our customers get top-notch service.
Bill Farmer
Senior Platform Engineer
Get started with NMIS
Free 20-licence trial. Or talk to engineering before you commit.