How to Create and use Network Bridge on Arch Linux and Manjaro

Bridge is what unites two or more network interfaces together. Network Bridging is mostly used in Virtualization to allow Virtual Machines access external Network. Different tools are available for creating and configuring...
Extend root filesystem using LVM

Extend root filesystem using LVM (Linux)

Extend root filesystem using LVM on Linux. This will cover both ext4 and xfs filesystem root partition extending.  It will start by creating a new partition and then partitioning it and...
Kickstart on KVM

RHEL and CentOS Kickstart on KVM Automated Installation With virt-install

Hello all. This is my first tutorial on KVM Virtualization prepared as a reference and to help you automate boring GUI-based installation questions. We're using Kickstart on KVM to deploy VMs....

How To Clone and Use KVM Virtual Machine in Linux

The most important and most used feature in world of Virtualization is the ability to clone a VM,take snapshot of the current state of a VM, Live migrate a VM, e.t.c. Lately...

Openstack Liberty Lab Part One: Setup Networking and all Prerequisites

Hi all. I've decided to put together Openstack Lab guide for those who would like to test and learn about Openstack Cloud Computing platform. This is part one of Openstack Lab...
Firewalld on RHEL7

Getting Started With Firewalld on RHEL7 and CentOS 7

Firewalld on RHEL7: I’m a person who is nuts about security. Seeing multiple layers of security being circumvented on a network is just against the reasons I’m security-centric all times. Some...
adding images to openstack glance

Adding images to Openstack Glance

In this tutorial we're going to look at how to start adding images to Openstack Glance image service. I assume you already have a running Openstack setup, and glance service runs...

Permission Denied While Starting instance in Openstack

As i was building Openstack Lab, i happen to encounter error message as it was seen on log file from tail -f /var/log/nova/nova-compute.log. # tail -f /var/log/nova/nova-compute.log 2016-03-21 22:05:34.283 1228 ERROR oslo_messaging.rpc.dispatcher     rv...

Openstack Liberty Lab Part Two: Install Openstack Packages

After completing Part one of Openstack Lab guide series: Openstack Liberty Lab PART ONE: Setup Networking and all Prerequisites We're ready to install Openstack packages in this part two guide. From Part three...

Install KVM on CentOS 7 / Ubuntu 16.04 / Debian 9 / SLES...

This guide will cover full installation of KVM hypervisor and its management tools on CentOS 7, Ubuntu 16.04, Debian 9, SUSE Linux Enterprise Server 12 and Arch Linux. This list of...