Nagios Open Discussion
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Transcript of Nagios Open Discussion
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Advanced Monitoring Topics
Ethan Galstad
Presented By
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NETWAYS Nagios Konferenz 2007
Distributed MonitoringDistributed Monitoring
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April 14, 2011 3
Goals
Scalability
Performance
Remote monitoring
Central reporting, management
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April 14, 2011 4
Methods
Distributed Worker Nodes (DNX)
Distributed Monitoring Servers (MNTOS)
Classical Nagios Setup
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April 14, 2011 5
DNX
Advantages
Unlimited expansion with more worker nodes
Central administration
Disadvantages
Central server for DB, perf. data
dnx.sourceforge.net
See Also: Mod Gearman
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April 14, 2011 6
MNTOS
Advantages
Central dashboard
Unlimited expansion with more servers
Disadvantages
Decentralized configuration
Decentralized reporting
www.sorkmos.com
See Also: Thruk
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April 14, 2011 7
Classical Nagios Setup
Advantages
Central monitoring server as dashboard
Remote monitoring servers to handle load
Disadvantages
Difficult management
Centralized perf. data
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NETWAYS Nagios Konferenz 2007
High AvailabilityHigh Availability
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April 14, 2011 9
HA Goal
Ensure monitoring never stops!
Data and state replication
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April 14, 2011 10
Failover Solutions
VMware HA / vMotion
DRBD
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April 14, 2011 11
Simpler Solution
Offsite monitoring server
Monitor the monitor
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NETWAYS Nagios Konferenz 2007
Remote MonitoringRemote Monitoring
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April 14, 2011 13
Remote Monitoring
Open firewall ports
Passive monitoring
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April 14, 2011 14
Passive Monitoring
NSClient++ for Windows
Cron and NSCA / NRDP for Linux
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NETWAYS Nagios Konferenz 2007
Useful ResourcesUseful Resources
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April 14, 2011 16
Resources
exchange.nagios.org
library.nagios.com
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NETWAYS Nagios Konferenz 2007
Questions?Questions?