1. Seminar On
ZENOSS CORE
(Network Monitoring Tool)
Praful Bhosale
MCA2 SEM –III
KIT IMER’s MCA Dept.
Date:-14-09-2013

2. What is Zenoss Core?
 Zenoss (Zenoss Core) is an open source application, server and
network management platform based on the Zope application
server. It's released under the GNU General Public License (GPL)
version 2.
 Zenoss Core provides a web interface that allows system
administrators to monitor availability, inventory/
configuration, performance, and events

3. Why Zenoss Core?
Open Source Monitoring Solution
More features including WMI performance monitoring
Powerful plugins (ZenPacks)

4. What Technologies used in Zenoss?
 Zope :-Application server: An object-oriented web
server written in Python.
Python:-Extensible programming language.
Net-SNMP-: Monitoring protocol that collects
systems status information.
 RRDtool:- Graph and log time series data.
 MySQL:- A popular open source database.
Twisted:- An event-driven networking engine written
in Python.

5. What Zenoss Core can do?
Monitoring availability of network devices using SNMP, SSH, WMI
Monitoring of network services (HTTP, POP3, NNTP, SNMP, FTP)
Monitoring of host resources (processor, disk usage) on most
network operating systems.
Time-series performance monitoring of devices
Extended Microsoft Windows monitoring via Windows
Management Instrumentation using Zenoss open source extensions
Event management tools to annotate system alerts
Automatically discovers network resources and changes in network
configuration
Alerting system provides notifications based on rule sets and on-call
calendars

6. Zenoss Architecture

7. Zenoss Architecture
User layer
Zenoss Core is flexible enough to work from a command line, but most
of our work will take place via a web interface, which is based on the
Zope application server framework.
Zope is a popular, extensible application server written in Python.
It features a built-in web server, transactional object database, and HTML
templates.
Python is the basis for Zope; it's also the basis for Zenoss Core.

8. Zenoss Architecture
Data layer
RRD:- stores time series performance data
CMDB:- managing the configuration, relationship, and change history of the IT
environment, which creates a detailed model of the network

9. Collection layer
Zope Architecture
The collection layer includes several daemons that gather information about
devices, performance, and Events. They feed information to ZenHub to distribute
to the appropriate database.
The Zenoss Core daemons are easy to
identify—they all start with the prefix "zen".

11. Daemon
It is a computer program that runs as a background process, rather than
being under the direct control of an interactive user
Device management daemons:-
zenmodeler, zendisc.
Performance and availability daemons:-
zenperfsnmp,zencommand, Zenprocess,zenping,zenstatus.
Event daemons:-
Zensyslog,zeneventlog,zentrap.

12. Zenoss Core Installation
1. visit www.zenoss.com/download.
2. find native packages, stack installers, and source files for several
operating systems:- Red Hat Enterprise
Linux, Centos, Ubuntu, Fedora Core, OS X, OpenSuse, and
Debian.,Windows.
3. Preparing devices for monitoring
4. Configuring SNMP and WMI
5. Configuring firewall

13. Setting up users

15. Specify or discover devices to monitor
Adding devices

17. Zenoss Dashboard

18. Zenoss Event Console

19. Zenoss Network Map

20. Zenoss Performance & Reports

21. Zenoss is a good choice for open source network and
systems management.
The Zenoss system provides full stack coverage
of networks, servers, applications, services, and
virtualization.
Conclusions

22. References
1) www.zenoss.com
2) en.wikipedia.org/wiki/Zenoss
3) Zenoss Core Network and
System Monitoring by Michael
Badger