Nagios Enterprises
For over 25 years, businesses and organizations worldwide have trusted Nagios to monitor their mission-critical IT infrastructure, catching and resolving issues before they impact operations.
Nagios XI
Empower your team with proactive detection and notifications. Nagios XI provides deep, full-stack visibility across your servers, applications, and critical services. Get started free today!
Nagios World Conference 2026
NWC2026 runs September 14-17 in St. Paul, MN. Learn what’s coming next, sharpen your skills, and swap IT war stories with monitoring peers.
Downtime or a breach, the work runs through the same three solutions: Nagios XI, Network Analyzer, and Log Server. Already running XI? Each toolkit adds the traffic and log layers around it, with individual licensing still available.
The Nagios Security Toolkit is the visibility layer underneath your security stack. It captures the infrastructure telemetry SIEMs require: device state changes, raw flow records, and retained syslog.
Explore the Security Toolkit
Auto-discovery scans surfaces hosts nobody approved, and alerts fire the moment a device's state changes without a corresponding change request.
NetFlow, sFlow, J-Flow, and IPFIX records expose unusual activity, off-hours transfers, and volume spikes providing flow-level evidence behind lateral movement and exfiltration.
Retained, searchable logs of failed logins and privilege changes let you rebuild an incident timeline and export the documentation auditors actually ask for.
The Nagios Networking Toolkit follows a problem down through every layer in one connected workflow. Device status tells you what changed, flow data tells you who's talking, and syslog tells you what the hardware reported on its way down.
Explore the Networking Toolkit
Switches, routers, firewalls, and servers via SNMP, agents, WMI, or SSH. Track interface status, service health, and resource thresholds across your environment.
Top talkers, bandwidth trends, and protocol usage down to the individual flow. Plan capacity and answer “the network is slow” with data.
Syslog from servers, firewalls, and network devices lands next to your monitoring timeline, so you can read what a device reported in the minutes before it dropped.
Join 2,000+ partners delivering world-class monitoring solutions to over one million users worldwide.
Every Nagios solution is backed by real people who genuinely care about your success. Our developers, support specialists, and customer sucess managers are problem-solvers who understand the pressure when systems go down. With 25 years of experience, we’re here when it matters most.
Webinars, meetups, and the Nagios World Conference. There’s always something on the calendar, online or in person.
