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Category: DevOps

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 more in the community-driven Nagios-exchange website, icinga2 is a very good choice for your infrastructure monitoring.I will cover some of the optional features that can be tweaked to suit your […]

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 get your VPN client up really fast. You’ve probably heard of Ansible already. Well, one of its use cases is exactly what we need here: Configuration Manager. Many […]

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, or something else happened all clients that had mounts from the NFS completely blocked waiting for it to come back up, because it is so […]

Introduction to Docker If you have been following the “cloud” trends you probably have heard of Docker. It is an open-source implementation of the LXC (Linux Containers) used for packaging an application and its needed dependencies into a container that can be deployed and replaced easily. The containerization in Docker is achieved via resource isolation […]