nagios-drdanielkrahenbuhl

A proactive and open way to monitor your enterprise 

Presented by: Dr. Daniel Krahenbuhl  - Ali AmanCEO Intuittech Sdn Bhd

We are a young Malaysian company 100% focused on Nagios and Asterisk based solution.

We have a staff strength of 17 Intuiter in Malaysia.

We are known regionally (and globally) to have  the expertise of deploying complex and large scale Nagios and Asterisk projects.

Currently we operate a marketing and sales office in KL asWell as a Engineering office in Cyberjaya.

Goals of this presentation• Understand current NMS market• Conceptually understand the power and limitations of• Nagios a open source NMS• How to deploy Nagios• Architecture and concepts of large Nagios deployments

And most important to excite you to deploy Nagios in your own or clients organization.

The Number 1 enterprise open source NMS in the market

Today’s NMS Situation • Many organizations still drive their IT blindfolded • Re-active mode• Traditional preventive maintenance schedules• IT-shop has bad image = the “problem” 

department• Manage based on feelings and “thinking's”• I  “feel” it’s slow…• I think we should get more memory….• Difficult to sign cheques based on feelings.

Why is this happening ?

Disadvantages of commercial NMS • Initial CAPEX is high• Ongoing costs (OPEX) year by year are high• MISO - Syndrome (Monitor Important Server Only)• NMS degrades into white elephant over time

• People with know-how are not easy to find• Very depended on principal• Expensive support and maintenance

• Not made for SME• But many SME’s need a enterprise NMS

• Complex• Not easy to customize or not possible at all

What is Nagios• A enterprise NMS like OpenView,  Tivoli• Nagios does monitor IT environments, that’s all it 

does. But it does it exceptionally well!• It’s not a:• Configuration Manager• Change manager• Ticketing system• etc etc.

• Suited for SME and large enterprises• Monitor a couple to many thousands hosts

Organizational impact of a Nagios• Be pro-active and therefore on top of the “situation”• IT-Shop informs, calls first 

• Avoid all unnecessary downtime• Solve problems resourceful and quick• Provides Capacity planning• Get rid of “preventive” maintenance excel sheets • Improve the availability of business services• Let IT-departments work on improving and 

streamlining  the IT infrastructure instead of troubleshooting unnecessary problems.• Contribute to the bottom line of a organization

How to deploy Nagios• The bad approach:• Let’s see what kind of infrastructure we have

Switch

OracleApache

Firewall JBOSS

• Ok. Let’s monitor the important “stuff”

Why do we actually monitor all this equipment ?

Router

ExchangeMSSQL

How to deploy Nagios• The good approach:• Step 1: Identify your organizations services

Service A(Billing)

Service B(Register)

Service C(Paying)

• Step 2: Identify all infrastructure  needed to operate specific  Service

• Step 3: Monitor all equipment needed to provide specific service.  All of this infrastructure is important!

SwitchOracleApache

Firewall JBOSS

What can we monitor with Nagios?

Network – Infrastructure(Switches, Router, Modems, UPS, etc)

Server – HW Infrastructure(Memory banks, CPU-slots, Fans, RAID controller…..)

OS-Monitoring(CPU, Memory, Disk-Space, …)

Applications (Started/Stopped/ Processes …..)

Log Files

Environment

What can we monitor with Nagios?

www.monitoringexchange.org

http://nsclient.org/nscp/

http://exchange.nagios.org/

Graphing – Samples with PNP4

Graphing – Samples with PNP4

Graphing – Samples with PNP4

Visualization – Samples with NagVis

Visualization – Samples with NagVis

Visualization – Samples with NagVis

Gadgets – Windows task bar

Gadgets – iPhone application

Large Nagios systems – Distributed

Large Nagios systems - Cluster

Master SlaveDRBD(RAID 1 over LAN)

Heartbeat(serial null modem)

LAN- Switch.1  .2 .3 

Summary• Nagios is a high-end enterprise NMS • It’s suitable fro small to very large setups• It can compete with OpenView and Tivoli

• In short its the “right” NMS for every organization

Thank you very much for your time !www.intuit.my

My blog: www.danielaliaman.com