Sunday, February 17, 2019
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Openstack Error Qemu-img: Could not open ‘/var/lib/libvirt/images/’ Permission Denied

Have you ever receive error message like below while working with Openstack and KVM?. If so, a fix is given here. Command: env LC_ALL=C LANG=C...

Openstack Liberty NoFloatingIpInterface: Interface eno16777736 Not Found.

Lately, i have been trying to deploy a single node openstack infrastructure on a centos OS host running on bare metal partition of my...

How To Create and Use Local CentOS 7 YUM Repository Easily

As a Linux System Admin, It's alwasy an obligation to install sofware packages on a server.However, it's not always compulsary to install packages from...

How to install latest VirtualBox and Extension Pack in Arch...

This is a guide on How to install latest VirtualBox, VirtualBox Guest Additions and  Extension Pack on Arch Linux. Arch Linux is one of...

CALL TRANSFER AND FORWARDING IN ASTERISK CONFIGURATION

Asterisk is a very powerful media server for call routing and with great design and configuration can be used sustainably in a company,institution or...

CORS HEADER ‘ACCESS-CONTROL-ALLOW-ORIGIN’ MISSING IN SLIM/ANGULARJS STACK

I have been tinkering with angularJS in production mode and got this annoying error,that got me stuck for days at the expense of my...

How to install and configure Festival for Asterisk use

We'll go through the process of installing and Configuring Festival Speech-to-text utility developed by University of Edinburgh, UK community. Text-to-speech conversion is very crucial when...

Configuring Mapping between Openfire XMPP users and Asterisk SIP users

In this small guide, we'll try to Map sip users configured in Asterisk sip.conf file with XMPP users configured in Openfire XMPP server.If you're...

How to manually add menu entry to GRUB2 menu on Arch...

As I've made Arch Linux my Primary OS, I was faced with a task of adding a Menu Entry to GRUB2 so that I...

UPLOAD IMAGES OR FILES WITH SLIM PHP AND ANGULARJS

This code snippet illustrates how you can upload a file preferably an image from angularjs frontend to slim php server 1. Write a simple form...
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