Nagios XI
8.1#2 in dns monitoring software$2,595 one-timeFree planWebAPILinuxmacOS
VisitNagios XI vs Sysdig Monitor
Sysdig Monitor
5.6#22 in cloud monitoringWebAPILinuxSelf-hosted
VisitWhat both publish
| Fact | Nagios XI | Sysdig Monitor |
|---|---|---|
| Founded | 2007 | 2013 |
| Headquarters | St. Paul, Minnesota, United States | San Francisco, California, United States |
| Integrations | Nagios XI supports authentication with Active Directory or LDAP over SSL, Single Sign-On with Microsoft Entra ID, and two-factor authentication through Duo. | The Monitor integrations library lists Prometheus integrations such as Apache, Cassandra, Kafka, MySQL, and PostgreSQL, plus cloud integrations for AWS and Azure services. |
Nagios XI plans
- Standard — 100 Nodes$2,595, paid once
- Enterprise — 100 Nodes$4,690, paid once
- FreeFree
- Standard$2,595, paid once
- Standard (100-Node)$2,595, paid once
- Enterprise$4,690, paid once
Sysdig Monitor plans
- Cloud-Native MonitoringPriced on request
Pick Nagios XI if…
Nagios XI suits teams that want to monitor infrastructure from a Linux server they manage. It is also relevant to organizations that need self-hosted deployment, node-based licenses, or offline installation.
Pick Sysdig Monitor if…
It suits organizations monitoring Kubernetes, containers, cloud services, or serverless resources that need process-level visibility and cost analysis. Teams seeking Prometheus metrics and configurable alerts may also find its toolset relevant.