Nagios Support Forum

Nagios XI version: 5.5.4
XI installed from: manual
XI UUID:

Hi,

Can someone from Nagios please advise:

We currently have a Nagios XI system running on a platform (bare metal) which is not powerful enough and hence load issues.

So I plan to migrate the system on to a new more powerful hardware platform.

The existing system has an IP address, but it is on a secure LAN with no access to the internet.

When building up the new system, my steps would be to install Centos, update any packages, install Nagios and restore the backup by following the written nagios processes.

However in order for me to use the internet to load the various software packages and application, the new system will be on a completely different IP subnet.

So, my question is, after I have loaded Centos and Nagios, at what stage do I change the IP address of the system....before or after installing the backup of the live system ?

Is there anything that I need to watch out for in relation to changing the IP address back to the original IP address ?

Many Thanks

It doesn't really matter when you are going to change the IP address. Each Nagios XI license is approved for up to three installations: one primary monitoring/production, one backup/failover, and one test environment.
As long as you are only using one install for production monitoring, you are within the boundaries of our licensing policy.

https://support.nagios.com/kb/article/n ... s-145.html

If you eventually activate Nagios XI on three IP's and need to migrate one of them to a new IP, simply contact our sales department at [email protected]. They can typically offer additional installs.

Note: One thing you need to do after the migration is to go to Admin > System Config > System Settings, and make sure you have the correct IP in the "Program URL" and/or "External URL" fields. Also, you may need to add the new IP to the agent's settings (e.g. nrpe.cfg) on any of the remote machines, that you are monitoring.

It's a good idea to disable notifications globally while migrating, until you verify that everything is working correctly.

Thank you.

The IP address of the original system will be retained.

So all I have to do is change the IP address from the temporary IP address during the build process to the production original IP address via the Centos operating system ?

I don't think you need to change the IP address temporarily. You could use the same IP as long as the other server is down. Only one of them could be used for production.

lmiltchev wrote:I don't think you need to change the IP address temporarily. You could use the same IP as long as the other server is down. Only one of them could be used for production.

I have to change the IP address of the new server once the new server is built, as the production server has to remain up at all times and the production IP address has no permanent access to the internet.

The replacement server will be built on a network connection and IP subnet that has permanent internet access in order to update Centos packages, install Nagios etc, etc.

Once the replacement server is built, the existing production server will be removed and replaced with the new server, and the new server will have the production IP address installed.

That is the plan.

Sounds good. Let us know if you have any further questions.