
Nagios XI
8.1#2 in dns monitoring software$2,595 one-timeFree planWebAPILinuxmacOS
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| Fact | Nagios XI | Sensu Go |
|---|---|---|
| Alerting | Alerts can use email, Twilio or Multi-Tech SMS, Slack, Discord and SNMP traps, with acknowledgements, downtime, dependencies and escalations. | Sensu can send alerts through email, Slack, and SMS, create or resolve incidents in PagerDuty, ServiceNow, and JIRA, and deduplicate alerts. |
| Company history | Nagios Enterprises was founded by Ethan Galstad in 2007 in St. Paul, Minnesota. | Sensu Go OSS was released in 2017 by Sensu Inc., which was acquired by Sumo Logic in June 2021. |
| Founded | 2007 | 2017 |
| 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. | Sensu names Elasticsearch, Splunk, PagerDuty, ServiceNow, Ansible Tower, Prometheus, and Nagios among its integrations and compatible tools. |
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.
Sensu Go suits DevOps and SRE teams managing monitoring across cloud, container, and bare-metal environments. It may fit teams that want declarative configuration, alerting, and remediation in a self-hosted system.