Use virt-manager as a non-root user on linux

Hello all. I've been using KVM for a long time now. Every time i try to use virt-manager as a non-root user, i have to enter sudo password. This ain't a...

Openstack Liberty Lab Part Four: Configuring Glance Image Service

Glance is image service which enables users to discover, register, and retrieve virtual machine images. I assume you installed glance openstack image service in Part one of this Lab series, if you...

How to convert VirtualBox Disk Image (VDI) and img to Qcow2 format

This simple guide will show you the easiest way to convert VDI disk image to use on your Openstack Cloud environment. It's easy to use and you just have to isntall...

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...

How to Fix Openstack Nova error “NoValidHost: No valid host was found.There are not...

I was trying to Deploy Openstack for testing inside VirtualBox and i got an error "NoValidHost: No valid host was found.There are not enough hosts available." while trying to run an...
DokuWiki

How to install and configure DokuWiki on CentOS 7 with PHP 7.1

In this tutorial, I’m going to work you through all the steps needed to have latest version of DokuWiki up and running on CentOS 7 base system. DokuWiki is a simple to...

How to Add Extra Hard Disk to VirtualBox VM and set Automount

 For one reason or another, you may reach a point where you need additional storage for your Virtual Machine. Today, i will show show a simple way to Add an extra...
Creating Openstack Network and Subnets

Creating Openstack Network and Subnets

In this part of Openstack deep dive series, we'll look at Creating Openstack Network and Subnet using Openstack command line interface. Last we looked at: Adding ssh key pair to Openstack using cli How...

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...

Complete Installation of KVM,QEMU and Virt Manager on Arch Linux and Manjaro

KVM is one of the most used Virtualization softwares in Linux World. In fact most cloud providers use KVM as their Hypervisor of choice. Big projects including Openstack use KVM as...