Why I chose Open Source

The Advantages of Open Source Software: Technical, Economical, and Social Benefits Technical Advantages: Economical Advantages: Social Advantages: Conclusion: The Advantages of Open Source Software: Technical, Economical, and Social Benefits Open source software (OSS) has revolutionized the digital landscape by offering numerous advantages over proprietary alternatives. With its collaborative and transparent nature, OSS has gained popularity across various domains. In this blog post, we will explore the key advantages of open source software from three perspectives: technical, economical, and social. [Read More]

Compute Service (Nova) Architecture

API server Message queue Compute worker These basic categories describe the service architecture and information about the cloud controller. API server At the heart of the cloud framework is an API server, which makes command and control of the hypervisor, storage, and networking programmatically available to users. The API endpoints are basic HTTP web services which handle authentication, authorization, and basic command and control functions using various API interfaces under the Amazon, Rackspace, and related models. [Read More]

Creating a Kali Linux Image for Openstack

Install required softwares Get the Image Unarchive Concatenate all the VMDK files to single QCOW2 Upload to Glance Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. It is maintained and funded by Offensive Security Ltd. Mati Aharoni, Devon Kearns and Raphaël Hertzog are the core developers. Now a days lots of people using it for Security assessment. Here we will see how to create a QCOW2 image of Kali for Openstack. [Read More]

Live Migration failure Cannot get interface MTU on ‘qbrXXXXXXXX-XX’

Some times, when you are doing a live migration , it will ended up with the following error in the nova-compute.log of hypervisor. The reason for this as follows. The Interface was removed by the user, but LIBVIRT doesnt acknowledged about this. But nova did. So, when nova initiates a live migration, libvirt is looking for this interface, which actually doesnt exists. virsh domiflist Interface Type Source Model MAC tap29b1bcde-c7 bridge qbr29b1bcde-c7 virtio fa:16:3e:79:06:2a tap887baa4b-2e bridge qbr887baa4b-2e virtio fa:16:3e:d8:e9:db At the same time [Read More]

An ISP Journey to Public Cloud

Transformation from Baremetal to Virtualization A change is inevitable OK, What will be our prototype Here is the Leader Openstack Mirantis Release Design Rainfall What about Cost Aftermath Transformation from Baremetal to Virtualization In 2012, when we think about Virtualization, people are not ready to accept the changes. They were not believing in Virtualization because of following reasons. Virtual ? Security ? Data Integrity ? Availability ? Management ? [Read More]

Openstack

What is Openstack OpenStack is a free and open-source software platform for cloud computing, mostly deployed as infrastructure-as-a-service (IaaS), whereby virtual servers and other resources are made available to customers. The software platform consists of interrelated components that control diverse, multi-vendor hardware pools of processing, storage, and networking resources throughout a data center. Users either manage it through a web-based dashboard, through command-line tools, or through RESTful web services. Evolution In July 2010, Rackspace Hosting and NASA jointly launched an open-source cloud-software initiative known as OpenStack. [Read More]