Nagios Support Forum

Hi Team,

Could you, Please suggest me the best practice for the DR setup for the nagios core.

It would depend on the setup. I know native high-availability was a planned feature for Nagios Core 5.

VM-level snapshots can be super duper simple disaster recovery for quite literally any single machine.

If all you have is a vanilla Nagios Core 4 installation, is the time required to re-compile Nagios Core from scratch acceptable? If so, just backup your configuration files. Or keep them on a netshare and make them available to your fail-over instance.

Thanks @mcapra!

For clarity, this is still planned. Unfortunately, I do not yet have a release date to give you.

Hi dwhitfield,

In our current environment we are using Nagios core version 4. Am planning to do rsync between nagios production server to other nagios backup server.
What are the folders required to be in rsync from Nagios production server to Nagios backup server. Please help me with this.

It's impossible to say without looking at your nagios.cfg.

If I were you, what I would do is run the two following commands as root: rsync every *directory* that shows up.

You might thing that find / -name *nagios* would do it, but depending on your security and drive mappings, that may give an incomplete list.

Hi,
I found this document since I am too looking at some kind of DR or HA solution.
Hope it helps.

http://nagios.sourceforge.net/download/ ... sHA_EN.pdf

Thanks @Pitone_Maledetto!

I will note though that documentation is from 2005, so YMMV.

Sure @dwhitfield, the concept proves that it might still can be done.
I have not had time to go through it all but very soon I will spin some VMs hosting a new Nagios Core set-up (as staging environment) with mode-gearman for load balancing and will have a go on trying if that documentation still applies.
Thanks for your input.
Regards

On a side note; what DB engine does Nagios Core use?
Is it possible to install Nagios Core and make it use a different DB engine like PostgreSQL for example?
Thanks

Pitone_Maledetto wrote:On a side note; what DB engine does Nagios Core use?

By itself, Nagios does not use a database. If you'd like to go into more detail about using NDO with Core, that should go in a separate thread. Feel free to link to that thread in this one though.