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This procedure installs Zenoss Core OVA packages as a virtual machine managed by vSphere Server version 6.5.0, using VMware vSphere Web Client 6.5. The procedure might differ with other versions of VMware vSphere Client. 1 In a web browser, navigate to the download site, and then log in. The download site is Zenoss Community.

  • Welcome to the Zenoss Support Center. Download Portal: Zenoss Cloud Documentation: Zenoss Service Dynamics/ZaaS.
  • From Zenoss Wiki. This is the approved revision of this page, as well as being the most recent. Jump to: navigation, search.

ISBN: 1847194281

Category: Technical

Tag: Programming


Posted on 2009-09-01. By anonymous.
Zenoss Core Network and System Monitoring: A step-by-step guide to configuring, using, and adapting this free Open Source network monitoring system by Michael Badger
Publisher: Packt Publishing (June 13, 2008) 280 pages ISBN: 1847194281 PDF 12.5 MB

For system administrators, network engineers, and security analysts, it is essential to keep a track of network traffic. At some point it will be necessary to read the network traffic directly instead of monitoring application level details. Network security audits, debug network configurations, and usage patterns analyzing can all require network traffic monitoring. This task can be achieved by using network monitoring software, or network sniffers, that sniff the traffic and display it on your computer on the network.
Zenoss is an enterprise network and systems management application written in Python/Zope that provides an integrated product for monitoring availability, performance, events and configuration across layers and across platforms. Zenoss provides an AJAX-enabled web interface that allows system administrators to monitor availability, inventory/configuration, performance, and events. Whether you monitor five devices or a thousand devices, Zenoss provides a scalable solution for you.
This book will show you how to work with Zenoss and effectively adapt Zenoss for a System and Network monitoring. Starting with the Zenoss basics, it requires no existing systems management knowledge, 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.
What you will learn from this book?
You will:
* Understand how Zenoss Core works and what it can do for you
* See how to install and set up Zenoss Core
* Buildan inventory of your network using Zenoss Core
* Monitor the operational status of devices and components
* Generate events and manage them from the Event Console
Zenoss network monitoringZenoss Install Free * Manage users, define alerting rules, and customize event views.
* Administer Zenoss Core, perform backups and updates
* Extend Zenoss Core with ZenPacks, Nagios plugins, and command line utilities
* Troubleshoot Zenoss Core
Approach
The book starts by covering installation and configuration, before moving onto administration and dashboard usage.The book contains step-by-step instructions for setting up and using a working, capable Zenoss system.
Who this book is written for?
From small business to a large enterprise, this books helps organizations collect data, monitor, and report on their IT assets. Zenoss Core offers a feature-rich, accessible solution to organizations that lack the financial resources to purchase a proprietary monitoring solution or the technical resources.
This book makes no distinction about your existing systems management knowledge or lack; thereof and assumes everyone is new to Zenoss Core. The emphasis is on configuring and administering a monitoring environment from the comforts of a graphical web interface.
About the Author

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Mike Badger is a technical writer with a BS in Technical and Professional Communication from the Pennsylvania College of Technology/Penn State. For 15 years, he has bridged the communication gap between developers and users and specializes in helping users understand, troubleshoot, and use technology.

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Zenoss Core Network and System Monitoring

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  1. 2013-12-02Zenoss Core Network and System Monitoring - eazydoc.com
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  3. 2012-02-05Zenoss Core Network and System Monitoring [ReUpload] - Removed
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Zenoss is an open source agentless monitoring tool.

The main advantage of zenoss is that you don’t need to install any software on the client side for monitoring.

Zenoss has the following two versions:

  1. Zenoss Core (this is free)
  2. Zenoss Enterprise. This is also called as Zenoss Resource Manager, which is a paid version. This provides several additional features: High-availability, distributed architecture, event correlation, etc.


By default, it uses SNMP for monitoring. On Windows, it uses WMI (Windows Management Instrumentation).

This tutorial explains how to install and configure the Zenoss Core edition for your enterprise monitoring.

1. Pre-Req for Zenoss Install

Before you install ZenOSS, make sure you do the following:

  • Open these ports on your firewall, as they are used by Zenoss and its related services: 11211, 8080, 514, 162, 25
  • Install Java and make sure JAVA_HOME is set appropriately (Use java version 6 or above)

2. Install Zenoss Dependency Package

Install the zenoss dependencies repository. Download the appropriate version for your platform from here.

3. Install MySQL

You can install MySQL as we discussed earlier.

Make sure to set the following parameters in your /etc/my.cnf file after the MySQL installation.

Also, for now, don’t set any password for the MySQL root account. Leave it empty.

4. Other RPM and Service Dependencies

Depending on your environment, when you install zenoss core rpm as shown in the next step, you might get lot of missing dependencies messages. You have to install all of those missing packages one by one. On my instance, I ended-up installing the following packages

  • net-snmp.x86_64 and net-snmp-utils.x86_64
  • gmp.x86_64
  • sysstat.x86_64
  • dmidecode.x86_64
  • memcached.x86_64
  • binutils.x86_64
  • liberation-fonts-common.noarch, liberation-mono-fonts.noarch, liberation-sans-fonts
  • rrdtool.x86_64
  • Several nagios-plugins packages. For example: nagios-plugins-dig.x86_64, nagios-plugins-dns.x86_64, etc.
  • liberation-serif-fonts
  • libxslt.x86_64
  • libgcj.x86_64
  • rabbitmq-server-2.8.6-1.noarch

If you are using ‘Amazon Linux AMI 2013.09.1’, to install libgcj, you need to create a repo file in /etc/yum.reposd.d/centos.repo with following lines:

Also, make sure the following services are started before installing zenoss:

5. Install Zenoss Core RPM

If you have SELinux enabled, you need to make sure to allow appropriate Zenoss ports and programs in your SELinux configuration. If you are not sure how to do that, you may want to temporarily disable SELinux until you figure out how to do it.

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Download the zenosscore RPM package from here.

Install the zenoss core rpm package:

6. Start Zenoss and Verify

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Start the zenoss service as shown below:

When you start the zenoss for the first time, it will take a while, as it will few database schemas like zenoss_zep, zodb and zodb_session. This will also add rabbitmqvhost.

Rabbitmq is an open source messaging queue server which is implemented in latest version of zenoss to process events faster. In the previous versions, Zenoss event processing was done by zenhubdeamon.

Once zenoss is started for the 1st time, connect to the MySQL database and verify that it has created the zenoss realted database schemas:

7. Verify Zenoss Services

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Execute the zenoss command as shown below to view the status of all the Zenoss services. It should all say running.

Verify that the zenoss rabbitmq queues are created using the rabbitmqctl command as shown below.

8. Launch Zenoss UI and setup Admin User

Once Zenoss is installed, go to http://{your-ip-address}:8080

For the first time, it will launch a setup screen. Click on “Get Started”. From here, do the following two steps:

  • Assign a password for the admin user
  • Create a new user account

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9. Login to Zenoss

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After the above setup, login either with the “admin” user or the new user that you’ve created.

Click on the “Infrastructure” link from the top menu. From here, you can start adding the clients and devices that you like to monitor.