Nagios Support Forum

Posted: **Wed Jul 18, 2018 4:21 am**

Hello,

I have a Nagios Core installation on one server and a Grafana installation on another.
I want to use InfluxDB, Nagflux, Grafana and Histou but I can't seem to get it working on different servers.

I have followed this installation. At first I skipped the Grafana installation as I already had it installed on another machine.
When installing Histou I installed it on the Nagios server and copied the histou.js file to the Grafana server and changed the "var url =" to the Nagios servers IP like this:

Code: Select all

var url = 'http://10.100.1.230/histou/';

When I verify that Histou is working by running this on the Nagios server:

Code: Select all

curl -G "http://localhost/histou/?host=localhost&service=PING"

And this on the Grafana server:

Code: Select all

curl -G "http://10.100.1.230/histou/?host=localhost&service=PING"

They both come back positive and seem to work.
However when I try to verify that Histou is working in Grafana by doing this:

Code: Select all

http://10.100.1.40:3000/dashboard/script/histou.js?host=NAGIOS-MONITOR&service=PING

The IP 10.100.1.40 is the Grafana server.

I just get

Code: Select all

HTTP code: 404
Message: error
Url: http://10.100.1.230/histou/index.php?host=NAGIOS-MONITOR&service=PING&height=&legend=true&annotations=false

I don't know what else to do here to get it working so I thought that I could try and install Grafana on the Nagios server just to see if it would work, and it did..
I installed Histou as per the guide and copied the histou.js to the Grafana folder and changed the url to 10.100.1.230 and it just worked..

Am I missing something or is it not possible to have Grafana on a different server?
Note that there are no firewalls what so ever between the machines.

I even tried to install apache and php on the Grafana server and install Histou just like I did on the Nagios server but no luck there either.

Do I need to do some other configuration?

Any help here is appreciated.

Thanks,

Posted: **Wed Jul 18, 2018 5:17 pm**

So Histou just provides pretty graphs that work off the Nagios data that has already been collected.

Just to remove Histou from the troubleshooting, in Grafana are you able to create a dashboard and graph using that data? This link should provide some step-by-step examples:
https://support.nagios.com/kb/article/n ... _Dashboard

Posted: **Thu Jul 19, 2018 1:17 am**

hmm, well it seems that I can create graphs manually. Though I don't know how to make a graph and I don't get the same options as in the link you posted I'm still able to add a query and add
"WHERE host =" and I get a list of all the hosts. I managed to get a graph from the check-host-alive command for a host and it looks like this:

: Query

: Graph; graph.png (28.02 KiB) Viewed 3853 times

And when I was adding the data source it says it is working.
So it seems that Grafana is able to get the data from the InfluxDB.

So it seems to be a problem with the Histou addon in Grafana then?

Do I just have to copy over the histou.js file to the Grafana server or does it need PHP etc. on the Grafana server to work or any other configuration?

Posted: **Thu Jul 19, 2018 8:33 am**

With some trail and error I found out that it starts to work if I disable https for Grafana..

Just by changing

Code: Select all

protocol = https

to:

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protocol = http

and then restart Grafana and it works like it should.

So now my question. Is this a problem with Grafana or with Histou? And how do I fix this?
I have my Grafana server publicly facing the internet and I don't want to have it insecure due to the logins and the information on the site.

Posted: **Thu Jul 19, 2018 4:47 pm**

OK that makes sense, you usually can't mix http and https together as it causes strange issues.

You should be able to change your var url = 'http:// to var url = 'https:// for it to work.

Then all of your access would be via https, like:
https://10.100.1.40:3000/dashboard/scri ... rvice=PING

Posted: **Fri Jul 20, 2018 3:35 am**

Box293 wrote:OK that makes sense, you usually can't mix http and https together as it causes strange issues.

You should be able to change your var url = 'http:// to var url = 'https:// for it to work.

Then all of your access would be via https, like:
https://10.100.1.40:3000/dashboard/scri ... rvice=PING

Yes of course. It's workring if I enable https for Histou.
Seems like something I should have thought about..

Thank you for your help!

Posted: **Fri Jul 20, 2018 8:45 am**

Wicket wrote:
Box293 wrote:OK that makes sense, you usually can't mix http and https together as it causes strange issues.

You should be able to change your var url = 'http:// to var url = 'https:// for it to work.

Then all of your access would be via https, like:
https://10.100.1.40:3000/dashboard/scri ... rvice=PING
Yes of course. It's workring if I enable https for Histou.
Seems like something I should have thought about..

Thank you for your help!

Glad it's working

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Using Nagios and Grafana on different servers

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