Zenoss Core 3.x Network and System Monitoring. A step-by-step guide to configuring, using, and adapting this free Open Source network monitoring syste

Zenoss Core 3.x Network and System Monitoring. A step-by-step guide to configuring, using, and adapting this free Open Source network monitoring syste - Opis

For system administrators, network engineers, and security analysts, it is essential to keep a track of network traffic.Zenoss Core is an enterprise-level systems and network monitoring solution that can be as complex as you need it to be. And while just about anyone can install it, turn it on, and monitor something, Zenoss Core has a complicated interface packed with features. The interface has been drastically improved over version 2, but it's still not the type of software you can use intuitively – in other words, a bit of guidance is in order.The role of this book is to serve as your Zenoss Core tour guide and save you hours, days, maybe weeks of time.This book will show you how to work with Zenoss and effectively adapt Zenoss for System and Network monitoring. Starting with the Zenoss basics, it requires no existing knowledge of systems management, and whether or not you can recite MIB trees and OIDs from memory is irrelevant. Advanced users will be able to identify ways in which they can customize the system to do more, while less advanced users will appreciate the ease of use Zenoss provides. The book contains step-by-step examples to demonstrate Zenoss Core's capabilities. The best approach to using this book is to sit down with Zenoss and apply the examples found in these pages to your system.The book covers the monitoring basics: adding devices, monitoring for availability and performance, processing events, and reviewing reports. It also dives into more advanced customizations, such as custom device reports, external event handling (for example, syslog server, (...) więcej zensendevent, and Windows Event Logs), custom monitoring templates using SNMP data sources, along with Nagios, and Cacti plugins. An example of a Nagios-style plugin is included and the book shows you where to get an example of a Cacti-compatible plugin for use as a command data source in monitoring templates. In Zenoss Core, ZenPacks are modules that add monitoring functionality. Using the Nagios plugin example, you will learn how to create, package, and distribute a ZenPack. You also learn how to explore Zenoss Core's data model using zendmd so that you can more effectively write event transformations and custom device reports. Spis treści:
Zenoss Core 3.x Network and System Monitoring
Table of Contents
Zenoss Core 3.x Network and System Monitoring
Credits
About the Author
About the Reviewers
www.PacktPub.com
Support files, eBooks, discount offers and more
Why Subscribe?
Free Access for Packt account holders
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Downloading the example code
Errata
Piracy
Questions
1. Network and System Monitoring with Zenoss Core
Device management
Availability and performance monitors
Event management
Plugin architecture
System reports
Custom device reports
System architecture
User layer
Data layer
Collection layer
Device management daemons
Performance and availability daemons
Event daemons
Summary
2. Discovering Devices
Zenoss Core installation
Preparing devices for monitoring
SNMP
SNMP versions
Configuring SNMP on Linux
Configuring SNMP and WMI on Windows
Zenoss Plugins
Installing Zenoss Plugins
Port scan
Opening monitoring-specific ports
Configuring Linux firewalls
Configuring Windows firewall
Zenoss Core setup wizard
Step 1: Setting up users
Step 2: Specify or discover devices to monitor
Adding devices
Manually find devices
Autodiscover devices
Our device inventory: A job well done
Reviewing device creation job log
Adding a single device
Entering device attributes
Importing a list of devices with zenbatchload
Command line discovery with zendisc
Summary
3. Device Setup and Administration
Organizing devices in Zenoss Core
Locations
Systems and Groups
Organizer details
Editing organizers
Moving organizers
Classes
Viewing a list of device classes
Assigning devices to a class
Modeling devices
Modeler plugins gather device information
Assigning modeler plugins
Troubleshooting data collection
Troubleshooting SNMP problems
Running snmpwalk
Is the SNMP daemon running on Linux servers?
SNMP problems on Windows
Troubleshooting WMI problems
Zeneventlogunable to connect to Windows
Zenoss Core does not collect WMI data
Troubleshooting Zenoss Plugins
A class of its own
Device administration
Locking or unlocking a device
Renaming a device
Resetting the IP address
Push changes
Deleting devices
zProperties defined
Summary
4. Monitor Status and Performance
Collectors collect
Configuring the performance collector
Monitoring components
Interfaces
OS Processes
Add Process
Viewing or editing the process details
Configuration properties
Monitoring OS Processes
Services
Enable monitoring for a service
Configuration properties
Monitoring exceptions for services
Interactively monitor IP services
File Systems
Ignoring File Systems with zProperties
Network Routes
Networks
Add Components
Viewing and editing component details for a device
Performance Graphs
Interface template
Performance Graphs
Working with graphs
Monitoring performance thresholds
Summary
5. Custom Monitoring Templates
Monitoring Templates
Monitoring SNMP data sources
Overriding templates
Editing the /Server/Linux template
Find OIDs for SNMP monitoring
Monitoring with Nagios plugins
Working with Nagios plugins
Nagios return codes
Nagios performance data
Adding the Nagios plugin to Monitoring Templates
Adding a Data Source
Adding a Data Point
RRDtool Data Point configurations
Defining monitoring thresholds
Graph definitions
RRDtool Graph Point configurations
Binding templates to the device class
Adding a device to monitor using the Bogo template
Monitoring with Cacti plugins
Data Source parser
Summary
6. Core Event Management
Event Console
Event severities defined
Event statuses defined
Acknowledging an event
Viewing an event log
Events consoles are everywhere
Closing events
Displaying historical events
Event Manager
Event Fields
Event commands
Creating a command
Working with events
Simulating an event
Clearing the event
Event mapping
Event Classes
Event class zProperties
Mapping an event
Event mapping sequence
Event de-duplication
Turning off event de-duplication
Summary
7. Collecting Events
Routing syslog messages to Zenoss Core
Collecting Cisco router syslogs
Testing syslog configuration with Logger
Monitoring Windows event logs
Windows event log severities
Testing the event log configuration with Eventcreate
Incorporating event reporting into third-party scripts via zensendevent
Simple backup script with zensendevent
Creating events by e-mail
Zenmail
Zenpop3
Configuring alerting rules
Alert filters
Alert escalations
Schedule
Alert messages
Event transformations
Some event transformation examples
Programming in zendmd, an interactive shell
Summary
8. Settings and Administration
Managing Zenoss Core users
Administered Objects
Event Views
Groups
Creating custom User Commands
Adding a User Command
System settings
Configuring Zenoss Cores Monitoring Dashboard
Locations portlet with Google Maps
Device Issues portlet
Zenoss Issues portlet
Watch List portlet
Root Organizers portlet
Production States portlet
Portlet permissions
Meet the Zenoss Daemons
Maintenance Windows
Adding MIBs
Backing up and restoring monitoring data
Automating backups with zenbackup
Restoring backups with zenrestore
Updating Zenoss Core
Summary
9. Extending Zenoss Core with ZenPacks
Installing community ZenPacks
Monitoring websites with HttpMonitor
Viewing a list of installed ZenPack objects
Configuring HttpMonitor
Configuring HttpMonitor settings
Creating a ZenPack
Adding files and objects to the ZenPack
Adding a new data source to the monitoring template
Adding objects to a ZenPack
Packaging the ZenPack
ZenPack development mode
Developer resources
Summary
10. Reviewing Built-in Reports
Report overview
Device Reports
New Devices
Device Changes
Model Collection Age
Software Inventory
Manufacturers and Products
SNMP Status Issues
Ping Status Issues
All Devices
All Monitored Components
Event Reports
All Event Classes
All Event Mappings
All Heartbeats
Graph Reports
Multi-Graph Reports
Adding Collections
Adding Graph Definitions
Adding Graph Groups
Performance Reports
Aggregate Report
Availability
CPU Utilization
Filesystem Utilization
Interface Utilization
Memory Utilization
Threshold Summary
User Reports
Notification Schedules
Summary
11. Writing Custom Device Reports
Creating Custom Device Reports
Custom Device Report fields
Building Custom Device Report queries
Using zendmd to test report queries
Exploring data in Zope
Using Python expressions in the columns
Convenience functions
convToUnits
Scheduling reports for e-mail delivery
Sending a CSV report
Scheduling a cron job
Summary
A. Event Attributes
B. Device Attributes
C. Example snmpd.conf
Index O autorze: Michael Badgeris a writer and technical communicator who has worked in a range of technical roles, including support, automated software testing, and project management. He has authored several books for Packt Publishing, including Scratch 1.4 Beginner's Guide. He also authors a regular Scratch column for Raspberry Pi Geek Magazine, which focuses on Scratch 1.4. mniej