A simple guide to install nagios core (latest stable release 4.2.1) which contain also a section to help to solve the most common problems such as:
– Forbidden you don’t have permission to access /nagios/ on this server
– Error: Could not open command file ‘/var/nagios/rw/nagios.cmd’ for update
– You don’t receive any email notification and/or you are able to send email notification by command line
A simple java code to check everything you can check through a simple SQL script / query without installing any type of oracle client or instant client: all that you need is nagios core 3.x or 4.x and a Java JDK 1.6.0_xx version.
The needed files to install the plugin are linked inside the installation guide in pdf format.
In this version you can use it to check your tablespaces status by specifying the Warning and Critical amount of free space.
I’ve also written 2 pages to explain how install and configure this simple plugin that may be very powerful.
Don’t exitate to contact me for any question or problems you’ll find… I wait for your feedbacks