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Advanced Monitoring Topics Ethan Galstad Presented By

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Page 1: Nagios Open Discussion

Advanced Monitoring Topics

Ethan Galstad

Presented By

Page 2: Nagios Open Discussion

NETWAYS Nagios Konferenz 2007

Distributed MonitoringDistributed Monitoring

Page 3: Nagios Open Discussion

April 14, 2011 3

Goals

Scalability

Performance

Remote monitoring

Central reporting, management

Page 4: Nagios Open Discussion

April 14, 2011 4

Methods

Distributed Worker Nodes (DNX)

Distributed Monitoring Servers (MNTOS)

Classical Nagios Setup

Page 5: Nagios Open Discussion

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

Page 8: Nagios Open Discussion

NETWAYS Nagios Konferenz 2007

High AvailabilityHigh Availability

Page 9: Nagios Open Discussion

April 14, 2011 9

HA Goal

Ensure monitoring never stops!

Data and state replication

Page 10: Nagios Open Discussion

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

Page 12: Nagios Open Discussion

NETWAYS Nagios Konferenz 2007

Remote MonitoringRemote Monitoring

Page 13: Nagios Open Discussion

April 14, 2011 13

Remote Monitoring

Open firewall ports

Passive monitoring

Page 14: Nagios Open Discussion

April 14, 2011 14

Passive Monitoring

NSClient++ for Windows

Cron and NSCA / NRDP for Linux

Page 15: Nagios Open Discussion

NETWAYS Nagios Konferenz 2007

Useful ResourcesUseful Resources

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April 14, 2011 16

Resources

exchange.nagios.org

library.nagios.com

Page 17: Nagios Open Discussion

NETWAYS Nagios Konferenz 2007

Questions?Questions?