Network Monitoring
Network Monitoring tools -- a subcategory of Monitoring & Observability
Why Self-Host Your Network Monitoring?
Commercial network monitoring platforms like Datadog ($15-23/host/month), PRTG ($1,800-14,000/year), and SolarWinds ($2,000+/year) charge based on the number of monitored devices, metrics, or agents. For infrastructure with dozens of servers, switches, and services, these costs run into thousands of dollars annually. These platforms also receive a complete picture of your network topology, device inventory, traffic patterns, and security posture — operational intelligence that reveals your infrastructure’s architecture and vulnerabilities to a third-party provider.
Self-hosted network monitoring tools provide SNMP polling, ICMP ping monitoring, bandwidth tracking, alerting, and dashboards on your own infrastructure. You can monitor unlimited devices and metrics without per-host pricing, retain monitoring data for years rather than the limited windows commercial platforms offer, and keep your network topology data private. Most self-hosted options support auto-discovery, custom thresholds, alert escalation through email/Slack/webhooks, and dashboard customization for NOC displays.
The operational advantages of self-hosted monitoring extend to incident response. When your network has an issue, the last thing you want is for your monitoring system to be unreachable because it depends on external infrastructure that may be affected by the same network problem. Self-hosted monitoring runs inside your network, continues operating during internet outages, and can alert through local channels (SMS gateways, local notification systems) when external services are unreachable. For organizations with compliance requirements, self-hosted network monitoring provides the audit trails, data retention controls, and data sovereignty guarantees that cloud monitoring services cannot offer.