N-central troubleshooting: stale devices, installs, notifications and patch cache

Skills you'll practise

• Diagnose a stale agent or probe from its server address, protocol and port, and correct ServerConfig.xml on the device
• Work through a failed agent or probe install: activation details, licence limit, service privileges, server communication and WMI
• Set time-to-stale relative to the scan interval and explain what Propagate does
• Trace a missing notification with the Incident Summary, Notifications Sent, Detailed Status and Raw Monitored Data reports
• Explain how a probe's patch cache works, how to size it and why its location should be set before go-live

Course outline

1. 1.N-central troubleshooting: stale devices, installs, notifications and patch cacheVideo · 2 min
2. 2.Stale agents and probes, and failed installsLesson · 18 min
3. 3.Stale data, scan intervals and missing notificationsLesson · 17 min
4. 4.Probe patch cachingLesson · 15 min
5. 5.N-central troubleshooting: stale devices, installs, notifications and patch cache: knowledge checkKnowledge check · 17 questions
6. 6.Final exam10 questions · passing it completes the course, so people who already know the material can test out

Sources it draws on

The lessons and questions are written from these references, so learners can go back to the original.

• N-central User Guide: Probe or agent is stale
• N-central User Guide: Troubleshooting agent and probe install issues
• N-central User Guide: Agent and probe services
• N-central User Guide: Troubleshooting notifications
• N-central User Guide: Set the default scan intervals (time to stale)
• N-central User Guide: Patch caching