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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...

Openstack Liberty Lab Part Five: Configure Nova Compute Service

This is part Five of our Openstack Lab guide series.So far we've covered: Openstack Liberty Lab PART ONE: Setup Networking and all Prerequisites Openstack Liberty Lab...

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

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...

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

Here is the Complete Installation of KVM, QEMU and Virt Manager on Arch Linux and Manjaro. KVM is one of the most used Virtualization...

Access Denied for user ..FATAL ERROR: Upgrade failed while upgrading from...

I stand to accuse Centos 7 repositories for being outdated.I installed  mariadb for local development, when all of a sudden i decided to use...

How to Install RTPProxy from Source in CentOS 7.x

RTPProxy is a software proxy delivering high-performance control to any kind of VoIP network infrastructure. RTPProxy enables the following services in a VoIP network. ...

Permission Denied While Starting instance in Openstack

As I was building Openstack Lab, I happen to encounter error message as it was seen on a log file from.tail -f /var/log/nova/nova-compute.log This error...

Hide a Div in AngularJS Without Using NG-SHOW

I read somewhere that with ng-show comes performance issues when rendering a page so to combat that I realized I could use $element dependency...

How To Install Kamailio SIP Proxy Server From Source In CentOS...

I had earlier written a tutorial on How to install Kamailio in CentOS 7 from repo. The link to the article is below: How to...

How to Create and Configure Bridge Networking For KVM in Linux

This is a how to Create and Configure Bridge Networking For KVM in Linux -  RHEL, CentOS 7.x, CentOS 6.x, Ubuntu 16.04, Ubuntu 14.04,...