Archives for July 2014

Docker can be installed on Ubuntu Cloud Server to manage containers. Docker is a free software that automates the deployment of applications. Previously we have talked about Automation in the Cloud, Relationship of Cloud Automation and Abstraction etcetera theoretical parts. In this article, first we will explain about Docker and then provide the commands to manually install Docker on Ubuntu on … [Read more...]

Apache JMeter is a free tool written in Java to perform load testing against client/server applications. In this context, we will discuss Load Testing as a whole. As can be understood from the name; Apache Software Foundation has developed this tool with Apache License, which is compatible with GNU GPL or  Free Software License. Load Testing is a broader topic and Apache JMeter is one of the tools … [Read more...]

What is Ubiquitous Computing? ubiquitous computing refers to the ubiquity of computer-based information processing (EDP) using any device. Ubiquitous computing is a concept. The term Ubiquitous Computing was first used in 1988 by Mark Weiser in his essay The Computer for the 21st Century. His vision was to make computer disappear as individual units and will be replaced by 'intelligent objects'. … [Read more...]

Lsyncd is tool for automatically live mirroring as daemon. Here are Lsyncd usage examples of Syncing and how to configure the excellent tool. The new users who are not aware what are daemons can read this article. On the guide to Setup Separate Database Server on Rackspace Cloud, we have upgraded from usual one server setup used for developmental works. Forget about Database Server for now. There … [Read more...]

Rackspace launches ready to deploy Single Tenant, Dedicated instances avoiding the issues of traditional virtualization loaded with CoreOS. The well-known cloud IaaS provider wants to overcome the limits of VM presenting a new range of servers with reduced deployment times and high performance. We talked about CoreOS, disadvantages of Multitenancy, PVHVM virtualzation mode, Bare Metal Hosting … [Read more...]

3D Slicing Software is important for semi-automated rendering of 2D images to 3D structures for surgical sciences. Cloud Servers can provide the needed computing power. As practically we published before, today in the Open Source World, two different categories of scientists and inventors are emerging in applied health sciences. First belong to the closed source model, where there is no way to … [Read more...]

This Guide describes how to install VNC Server on Ubuntu 14.04 on Rackspace Cloud with step by step commands. The server becomes a desktop. Previously we described how to Install VNC Server on Ubuntu 12.04 on Rackspace Cloud Server, also we did it with a special version of Debian named NeuroDebian; also we explained the terminology - VNC - Virtual Network Computing. Also, we explained the … [Read more...]

OpenShift PaaS marketplace is a matured step by Red Hat in the PaaS world. Users have seen so matured marketplace only from IaaS providers. Red Hat, still date is the king in the paid and free rpm based Linux World. Previously, we talked about the role of PaaS in the development phase of Software. The philosophical fact that the most time standing softwares were never written by computer … [Read more...]

According to research, usage of SaaS Solutions has been increased by 5 times compared to 2011. In the last 3 years, there is an astonishing growth. The research has been conducted by GigaOM Research and North Bridge Venture. In wary 2012, we published an article - 3 Factors That Changed Many Things. There are certain business advantages of SaaS Cloud Services, as we have pointed before, respecting … [Read more...]

For various reasons, an user might want editing httpd.conf on OpenShift PaaS. Here is how you can edit and making it working on restart. We have quite good number of articles on OpenShift PaaS, one can use the search feature on this website to get the search result like a list of article by using OpenShift as keyword to search. First you need to know about the Cloud Computing Service Models. … [Read more...]