Host Connectivity and Service Health
Check whether a host and required service are reachable before guessing at firewall, DNS, or app fixes.
- Free boundary
- Standalone checks, local host lists, local CSV or console output, and clear validation without a shared reporting suite.
- Paid value later
- Inventory-driven targeting, history, dashboards, scheduled runs, alert routing, ticket payloads, and polished multi-environment reporting.
01UnderstandSeparate DNS, ICMP, TCP, and application healthTeach why ping is not the same as service reachability, how DNS affects checks, and where false positives come from.02BuildCreate a small monitoring or DNS health labPractice the pattern in a controlled environment before using it against real hosts or production services.03UseRun the PowerShell connectivity quick checkUse a focused free tool that separates DNS, ICMP reachability, and expected TCP-port failures.04ExtendAdd host lists, richer metrics, and local reportsGrow from one host to CSV input, DNS reverse checks, service expectations, and local CSV or HTML evidence.05AutomateSchedule recurring checks and retain outputsMove toward scheduled tasks, timestamped exports, before/after comparison, and maintenance-window evidence.06IntegrateSend reports, raise alerts, or create ticket payloadsConnect the check results to email, Teams, status pages, dashboards, or a queue when the workflow justifies it.07Upgrade / plannedPackage it as an infrastructure health and notification suiteThe paid version would add orchestration, history, dashboards, multi-environment configuration, and supportable delivery.