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Asian Internet Interconnection Initiatives Project. Network Monitoring with Nagios . Yan Adikusuma Nara Institute of Science and Technology adik-yan@is.aist-nara.ac.jp AI 3 Meeting, June 2003, Tokyo, Japan. Outlines.
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Asian Internet Interconnection Initiatives Project Network Monitoring with Nagios Yan Adikusuma Nara Institute of Science and Technology adik-yan@is.aist-nara.ac.jp AI3 Meeting, June 2003, Tokyo, Japan
Outlines • Background • Nagios Overview • Plug-ins architecture • Nagios Addons • Monitoring objects in AI3 • Current Status • Summary
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
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
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..
Plugin Architecture • Compiled executables or script (perl, shell) check_sample.c #include ……………………Main (){ Result=check(); Return (result); } Local Resource or Service Plugin Remote Resource or Service Nagios Process (Core Logic) Plugin Local Host Remote Host Call and Return Checking Process
Nagios Addons • Executing Plugins from remote host (nrpe) Remote resource or service Nagios Process (Core Logic) nrpe Plugin Local Host Remote Host
Monitoring Objects in AI3 • Status of important network services such as DNS, Mail(POP/SMTP), HTTP, SSH,SNMP • Availability of host resources such as disk usage, load averages and running processes • Routing daemons such as zebra, ospf , bgp • Routing information such as: • Routing number and path availability • Routing check plugin on progress..
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
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 • Further information could be found: www.nagios.org