1 network monitoring with nagios asian internet interconnection initiatives project yan adikusuma...
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Network Monitoring with Nagios
Asian Internet Interconnection Initiatives Project
Yan Adikusuma
Nara Institute of Science and Technology
AI3 Meeting, June 2003, Tokyo, Japan
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Outlines
Background Nagios Overview Plug-ins architecture Nagios Addons Monitoring objects in AI3 Current Status Summary
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Background AI3 network spread over in wide area Japan sites is providing critical infra for
the whole AI3 network
Main Problem in AI3 :In most cases, system admins don`t aware what`s going on in a network
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Background (contd..) One of the solution“An open-source and inexpensive monitoring
tools”
which provides, Ability to monitor networks services and
host resources Real time notification on failures Informative front end interface
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Nagios Overview System and Network monitoring
application Monitor a wide variety of system properties
(e.g network services, host resources) Real time notification of failures Informative web interface Simple plugin architecture allow user
creating custom checks It`s free..
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Plugin Architecture Compiled executables or script (perl, shell)
Nagios Process
(Core Logic)
Nagios Process
(Core Logic)
Plugin
Remote Resourc
e or Service
Local Host Remote Host
PluginLocal Resource or Service
Call and Return
Checking Process
check_sample.c
#include ……………………Main (){
Result=check();
Return (result);
}
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Nagios Addons Executing Plugins from remote host (nrpe)
Nagios Process
(Core Logic)
Plugin
Remote resource or
servicenrpe
Local HostRemote Host
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Monitoring Objects in AI3a. Status of important network services
such as DNS, Mail(POP/SMTP), HTTP, SSH,SNMP
b. Availability of host resources such as disk usage, load averages and running processes
c. Routing daemons such as zebra, ospf , bgp
d. Routing information such as: Routing number and path availability Routing check plugin on progress..
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Current Status Please look at:
www.ai3.net/nagios/ Using Nagios version 1.0 and Nagios
Plugin 1.3.0 Scope of monitoring area: NAIST and
SFC
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Summary Nagios provide an easy and flexible way
to monitor network`s condition Real time notification offer faster
troubleshooting Nagios has been implemented in small
part in AI3 Extend the monitoring to partner sites Ｆ urther information could be found:
www.nagios.org