Nagios Support Forum

Good morning.
I want to install Centreon but is not compatible with the version 4 of nagios , I need the version 3
Right now I have installed the version 4.0.7
How I can get down to version 3.5.1 ?
What are the differences between the two versions ?
Greetings and thanks

Depends on what you have done with your install but the configs are almost exactly the same, so if you backup the configs you can copy them into a 3.5.1 installation

id suggest XI would be better than Centreon

I want install centreon

I need a program that is open source, nagios xi and what is not. thank you very much !!

Do you know any open source program similar to Centreon?

Nagios Core is open source. As Centreon is an additional product, we aren't able to provide support for it here. Your best bet is to look on their forums.