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Zenoss Core 3.x Network and System Monitoring

You're reading from   Zenoss Core 3.x Network and System Monitoring A step-by-step guide to configuring, using, and adapting this free Open Source network monitoring system

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Product type Paperback
Published in Apr 2011
Publisher Packt
ISBN-13 9781849511582
Length 312 pages
Edition 1st Edition
Concepts
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Author (1):
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Michael Badger Michael Badger
Author Profile Icon Michael Badger
Michael Badger
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Table of Contents (21) Chapters Close

Zenoss Core 3.x Network and System Monitoring
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Network and System Monitoring with Zenoss Core 2. Discovering Devices FREE CHAPTER 3. Device Setup and Administration 4. Monitor Status and Performance 5. Custom Monitoring Templates 6. Core Event Management 7. Collecting Events 8. Settings and Administration 9. Extending Zenoss Core with ZenPacks 10. Reviewing Built-in Reports 11. Writing Custom Device Reports Event Attributes
Device Attributes
Example snmpd.conf
Index

Troubleshooting data collection


Wouldn't it be nice if everything just worked? Unfortunately, we can expect to make a mistake or two.

Troubleshooting SNMP problems

If you see an event in Zenoss that reports SNMP agent down, we first need to find out whether the issue is with Zenoss Core or with the device.

Note

Not all network devices support SNMP. So, before you beat yourself up troubleshooting, make sure your device supports SNMP.

Running snmpwalk

Zenoss Core includes a command that will run the snmpwalk command on the selected device. The snmpwalk command will query the device using the SNMP community string we assigned to the device and will try to get a list of the OIDs. Let's try it.

Navigate to Infrastructure and select Devices. Select a device (by clicking on the device name) that should respond to SNMP requests. The device's Overview page displays.

  1. At the bottom of the sidebar, expand the Commands menu and select snmpwalk.

  2. The command runs against the device and returns the result, as shown...

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