vmWare vRealize Automation (with embedded vRO) – Full Example of Custom Resources for Executing Ansible Playbooks from Blueprints

This articles exists because I spend a lot of time in the last year inside vmware vRealize Automation (vRA) that includes an embedded vRealize Orchestrator (vRO) on a undisclosed project. … Read More

Network Topology Visualization – Example of Using LLDP Neighborships, NETCONF and little Python/Javascript

Ok, this is a continuation of two streams of articles here, first my recent NETCONF tutorial here, and secondly my very old project (back then in Java) of visualization of … Read More

Example of private VLAN isolation across Virtual and Physical servers using ESX/dvSwitch and HP Networking Comware switches

The target was simple, we have an internal cloud datacenter at work that provides users and customers both virtual machines and physical machines. Each machine has to network interface cards … Read More

Tutorial for small Hadoop cloud cluster LAB using virtual machines and compiling/running first “Hello World” Map-Reduce example project

I had Hadoop experience now for more than a year, thanks to a great series of Cloud Computing courses on Coursera.org, now after ~6 months of running via several cloud … Read More

Tutorial for creating first external SDN application for HP SDN VAN controller – Part 3/3: “Node Cutter” SDN application in perl with web interface

In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for … Read More

Tutorial for creating first external SDN application for HP SDN VAN controller – Part 1/3: LAB creation and REST API introduction

In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for … Read More