Set up Check Oracle Health This tutorial explains how to set up Check Oracle Health: check_oracle_health script (credits to Gerhard Lausser) to work on your Nagios environment on CentOS (or...
WHAT IS THE PURPOSE OF A TOOL LIKE SALTSTACK AND A BETTER QUESTION IS-WHAT PROBLEM DOES IT SOLVE? The two main purposes of SaltStack are configuration management and remote execution. You have probably heard of or...
What is Docker Trusted Registry? Since you are here, you have probably heard of Docker. When you search it in Google the first result is: “Docker – Build, Ship, and...
What is Icinga2? The Icinga2 configuration options are rich and provide you with a lot of ways to reuse what you already have. They serve well, but once your monitoring...
What is Icinga2? Icinga2 is a great tool built upon the foundation of the well-known Nagios monitoring, inheritingall the pros it has to offer. With many plugins available in your repository and thousands...
What is Ansible? In addition to the article about the PeerVPN installation and configuration, I will now show you a more advanced and quite ‘modern’ way to provision several servers and...
How to Convert XEN IMAGES to KVM? The rule of the “cloud” has already been established and now we have multiple vendors fighting for market share. Many companies started relying...
I’m not a big NFS fan ever since I worked as a Linux/Unix administrator way back in the good old days. Sometimes when the NFS server hung, lost network connectivity,...
Backup is an essential part of IT infrastructure management. Having HA solutions, RAIDs, etc. doesn’t free you from the need for backup. In case of a human error all those...
In my previous blog post, I was discussing how to monitor RabbitMQ as a centralized message Q of OpenStack. Well, that’s quite important but the end goal of having a cloud...
