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How to Install SNMP + MRTG in Nagios

Hi all,

i have configured nagios in fedora 15. its up and running. i have added some network devices which nagios is showing. my main objective is to see the bandwidth utilzation of my WAN links. i know for that i have to install snmp and mrtg but some how i am not able to do that. kindly guide me how to do that in NAGIOS.
nagioserror.JPG
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Mbhushan
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Mbhushan
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4 Solutions
 
Sanga CollinsSystems AdminCommented:
I found the easiest way to accomplish what you need is by using pnp4nagios : http://docs.pnp4nagios.org/pnp-0.4/start

It is all inclusive and makes gr8 graphs that i use not only for bandwidth, but also to chart items like HDD or ram usage. Any nagios service check that generates performance data (variable data that changes over time such as ping response) can be graphed by pnp4 nagios
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MbhushanAuthor Commented:
hey friend thanks a lot,  i am really very very very sorry for asking very very basic questions.

1 - do i have to install snmp for pnp ?
2 - does pnp will work with nagios  n will pull bandwidth utilization graph
Thanks
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MbhushanAuthor Commented:
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BazicBlueCommented:
Instead of installing Nagios and all of the packages separately, try installing OpsView. You add it to the repos after which you cal install it like any other software. it installs Nagios with MRTG and SNMP support, as well as a lot of other packages including an updated web interface, web based configuration and NMIS (which is very interesting if you want to see more about your network utilization).

The community edition can be found at http://OpsView.org
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MbhushanAuthor Commented:
hi BazicBlue,

thx for ur guidance. in my organization i want to set up a monitoring tool

1 - which can show all my impt wan links status
2 - which can show bandwidth utilization graphs
3 - is OpsView opensource
4 - can i monitor my vlans n will it show which packet(tcp,udp) is flowing in that vlan


waiting for ur kind reply .
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legolasthehansyCommented:
OpsView which BazicBlue suggests looks like a good tool which I haven't tried though.
I have used Cacti for getting graphs, Weather map (a plugin for cacti) to get you device and link status. You will have to spend some time on it though to get everything to work.

http://cacti.net/

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MbhushanAuthor Commented:
hi legolasthehansy,

welcum to u also, my friend i have setup cacti also, n thats also up n running, but i confused how to add wan links so that i can get accurate bandwidth utilization. any help n guidance will be highly appreciated.
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MbhushanAuthor Commented:
legolasthehansy if u can guide in cacti than within a few mins i can start monitoring my links.
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BazicBlueCommented:
Mbhushan,

OpsView is Open Source and has a professional development and support team behind it. It includes all of the tools that you want, need and more. I monitored a datacenter of close to 1000 nodes with it - over 25000 services checked - with the community edition. Its a fantastic product.

The best part is that you can be up and running, monitoring and configured, in 30 minutes. The only need to ever touch the command line is to install it and to upload custom service checks.
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MbhushanAuthor Commented:
BazicBlue  our company is looking for opensource product. is it paid ?
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MbhushanAuthor Commented:
hi legolasthehansy,BazicBlue.

cacti is able to pull info from core switch and i have put some vlan in graph. can u plz guide me what does this graph saying.
nagio..JPG
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legolasthehansyCommented:
it says you have inbound traffic 1kb/s and outbound traffic avg 2.45 kb/s. and similarly for the 2nd graph..

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