Nagios Core 4 + PNP4Nagios + Check_mk + Nagvis in CentOS 7 – Redhat 7

Notice, 12/10/2015. If you don’t need Nagios 4 and you are happy with Nagios 3 version I think the best option today is test and use Check_MK Raw Edition (CRE). This free edition is easy to install and includes all software in this post updated. The only reason to continue with this post in my opinion is that CRE not include Nagios 4 to date.

Introduction.

This post is a tranlate from original in spanish from www.eldespistado.com

Continue reading “Nagios Core 4 + PNP4Nagios + Check_mk + Nagvis in CentOS 7 – Redhat 7”

Monitoring vSphere ESXi servers with Nagios and check_mk plugins.

Since 1.2.3i1 version, check_mk include a very interesting plugin to check vSphere ESXi servers. We can read documentation about this fantastic plugin in official check_mk page.

Check_mk vSphere plugin allow to access ESXi data directly from ESXi servers or via vCenter.

Let’s see how to do the configuration of the vSphere ESXi, and vCenter servers check_mk plugin.

Continue reading “Monitoring vSphere ESXi servers with Nagios and check_mk plugins.”

Install Oracle Instant Client and DBD Oracle perl modules in Linux (Redhat, Centos, Debian,Ubuntu).

Introduction.

There are many plugins for Nagios for the purpose of monitoring Oracle, from simple tnsping to monitor listener response to various possibilities to monitor the status of tablespaces, instances, disks,…

When we address the need to use Oracle plugins we will always find two possibilities: locally execution (in Oracle server) by a nagios client/agent (NRPE, NSClient + +,…) or execution from the Nagios server itself. If we opt for latter, it’s required to install an Oracle client on the Nagios server, ideally Oracle Instant Client which is lighter than the full client. Besides this, most plugins are written in Perl, so you need the Perl modules needed for these to work. In this post we are going to talk about the installation and configuration of Oracle Instant Client and usually required Perl modules. Although focused for distributions Redhat / CentOS also mention how to install on Debian type Linux.
Continue reading “Install Oracle Instant Client and DBD Oracle perl modules in Linux (Redhat, Centos, Debian,Ubuntu).”