# Icinga vs Nagios

| Attribute | Icinga | Nagios |
|---|---|---|
| **Vioscale score** | 40.5 (20% (low)) | 100 (17% (low)) |
| activity.commits_last_30d | 0 | - |
| adoption.dependent_repos | 15,581 | - |
| adoption.github_stars | 9,249 | - |
| deployment.options | `{"self_hosted":true}` | `{"on_prem":true,"self_hosted":true}` |
| description.long | A free, open-source monitoring system with components for core monitoring, configuration management, database persistence, web UI, and incident notifications. Designed for self-hosted deployment with emphasis on transparency and community collaboration. | A free, community-supported monitoring system that helps organizations detect infrastructure issues and prevent downtime by monitoring servers, networks, applications, and services. It offers a modular plugin architecture for extensibility and includes optional web-based dashboards and visualization tools. |
| features.capabilities | - | `{"apm":true,"logs":true,"hosting":"both","metrics":true,"on_call":true,"alerting":true,"dashboards":true,"open_source":true,"snmp_polling":true,"netflow_sflow_ipfix":true,"cloud_vpc_monitoring":true,"auto_discovery_topology":true,"config_backup_change_mgmt":true}` |
| integrations.count | - | 4,000 |
| integrations.list | - | `[{"name":"Grafana"},{"name":"InfluxDB"},{"name":"Prometheus"},{"name":"Apache"},{"name":"Nginx"},{"name":"IIS"},{"name":"Tomcat"},{"name":"MySQL"},{"name":"PostgreSQL"},{"name":"Oracle"},{"name":"SQL Server"},{"name":"MongoDB"},{"name":"LDAP"},{"name":"Active Directory"},{"name":"JBoss"},{"name":"WebLogic"},{"name":"Citrix"},{"name":"PagerDuty"},{"name":"Slack"},{"name":"ServiceNow"},{"name":"DB2"},{"name":"EC2"},{"name":"VMware"},{"name":"Hyper-V"},{"name":"MSSQL"},{"name":"IPMI"}]` |
| language.primary | JavaScript | - |
| license.spdx | Apache-2.0 | - |
| platform.support | `{"web":true,"linux":true}` | `{"cli":true,"mac":true,"web":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://icinga.com","retrievedAt":"2026-08-19T14:41:18.900Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://www.nagios.org","retrievedAt":"2026-08-16T21:32:30.252Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| security.scorecard | 2.3 | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=webfontloader&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Network Monitoring)

| Capability | Icinga | Nagios |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Snmp polling | - | ✓ |
| Netflow sflow ipfix | - | ✓ |
| Auto discovery topology | - | ✓ |
| Wifi monitoring | - | - |
| Sdwan monitoring | - | - |
| Synthetic active monitoring | - | - |
| Config backup change mgmt | - | ✓ |
| Cloud VPC monitoring | - | ✓ |
| Multi tenant msp | - | - |
| Anomaly detection | - | - |
| Open source | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T15:17:27.325Z. "-" = undocumented, not absent.*