OVA pre-defined configuration

[sgomeztd]

Hi,

I have been trying to get the detailed configuration and/or changes the OVA image have over a minimal install of CentOS but could not find that information anywhere. As there is no OVA with CentOS 8 yet, I'm about start the install of a new NagiosXI 5.7 on a fresh RHEL8 and I'm wondering if there is some kind of kernel tuning or configuration defined on the OVA to improve the performance.

I have downloaded the OVA and tried to have a look in the config but could not find anything remarkable.

[benjaminsmith]

Hi,

I'm about start the install of a new NagiosXI 5.7 on a fresh RHEL8 and I'm wondering if there is some kind of kernel tuning or configuration defined on the OVA to improve the performance.

As far as I know, it's more or less a stock system, and you shouldn't need to make any kernel changes right away on a RHEL 8 system. What size system are you planning to deploy, the total number of hosts and services?

Once you get XI installed, I highly recommend you follow the guide below to increase the default PHP settings.

Nagios XI - Optimizing The PHP Settings File

Also, check out the following guide for improving performance in Naigos XI. Let me know if you have further questions.

Maximizing Performance In Nagios XI

[sgomeztd]

Hi

The idea is migrate our current Nagios 5.4.12 on Cents 6 (OVA) to this new deployment so the same number of host (1688) and services (15290) will be monitored. At the same time, we are going to migrate from Nsclient++ and NRPE to NCPA so I have quite a lot of work in the next few months.

Our current set-up have been tweaked by Nagios support over the time from different performance issue we have been having so I was planning on using those parameters.

[benjaminsmith]

Hi,

Ok, thanks for the clarification. Also, just want to let you know that your Nagios XI license allows for 3 activations, production, test, and backed up. So you can make any modifications to the test server until your ready to move this into production.

https://support.nagios.com/kb/article.php?id=145

Good luck with the migration and just let us know if you have any more questions.