ESX5i : Netflow monitoring

This support forum board is for support questions relating to Nagios Network Analyzer, our network traffic and bandwidth analysis solution.
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kbeuseli
Posts: 6
Joined: Tue Mar 25, 2014 8:26 am

ESX5i : Netflow monitoring

Post by kbeuseli »

Hello,

We are testing Nagios NA in a seperate VM deployed with an OVA.
Found out that it is possible to monitor network traffic originating virtual distributed switch from Vmware ESX.
In Nagios NA we receive all the trafic from the ESX but without any detail , in order words the reports are empty.
The Bandwidth graph shows traffic but the time is not correct , it run four hours ahead of current time.
Another source (hp switch) shows as expected.

regards
Koen
slansing
Posts: 7698
Joined: Mon Apr 23, 2012 4:28 pm
Location: Travelling through time and space...

Re: ESX5i : Netflow monitoring

Post by slansing »

What are your php and system time/date settings on the switch vs your NNA server, you should be able to match them up by checking the following commands:

Code: Select all

date

cat /etc/php.ini | grep 'timezone'
How to change your php.ini timezone:
http://www.inmotionhosting.com/support/ ... hpini-file

How to change your system time on a CentOS system "Be sure to use your actual system's local timezone that matches with the php time":
http://www.timgalyean.com/posts/to-chan ... me-centos/
kbeuseli
Posts: 6
Joined: Tue Mar 25, 2014 8:26 am

Re: ESX5i : Netflow monitoring

Post by kbeuseli »

Hi slansing,

Thank you for the time fix, that's ok now.
Still on my ESX source no sign of detailed traffic. (top 5 talkers)
How can I check if the flows contains correct info ?

regards
Koen
abrist
Red Shirt
Posts: 8334
Joined: Thu Nov 15, 2012 1:20 pm

Re: ESX5i : Netflow monitoring

Post by abrist »

Which direction was the date/time off, and by how much?
Former Nagios employee
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kbeuseli
Posts: 6
Joined: Tue Mar 25, 2014 8:26 am

Re: ESX5i : Netflow monitoring

Post by kbeuseli »

Hi,

The timezone was EDT instead of CET. About 6 hours difference. I removed the sources and added them again to start with a clean graph.
Still having the issue that no detail of the traffic is visible. (only ESX)

regards
Koen
tmcdonald
Posts: 9117
Joined: Mon Sep 23, 2013 8:40 am

Re: ESX5i : Netflow monitoring

Post by tmcdonald »

Can you try to pull up the graph then show us some lines in your log files? After you have the page loaded, run the following and post the output here:

Code: Select all

tail -30 /var/log/httpd/error_log
tail -30 /var/log/httpd/access_log
If anything in there is sensitive feel free to replace it with X or something.
Former Nagios employee
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