Virtualization and Cloud

Jonathan Gershater

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Top Stories by Jonathan Gershater

The Security for Cloud Computing: 10 Steps to Ensure Success white paper provides a practical reference to help enterprise information technology (IT) and business decision makers as they analyze and consider the security implications of cloud computing on their business. The paper includes a list of steps, along with guidance and strategies, designed to help these decision makers evaluate and compare security offerings in key areas from different cloud providers. The paper discusses the threats, technology risks, and safeguards for cloud computing environments, and provides the insight needed to make informed IT decisions on their treatment. I would like to thank the lead authors of this paper for allowing me to head up the Identity Management section (step #3) of this important paper. Step 3: Manage people, roles and identities Consumers must ensure that their clo... (more)

Installing RDO Grizzly on Centos Using Packstack

OpenStack is easily installed using a package called Packstack. Redhat is one of the primary contributors to packstack and my install experience is similar to the installation of RDO, described here The procedure is quite simple: Install Redhat, Fedora or Centos on one or more x86 servers. I installed the minimal Centos installation on a Dell 1950 Install and configure NTP - network time protocol # yum install ntp # chkconfig ntpd on # ntpdate pool.ntp.org # /etc/init.d/ntpd start Install the Fedora repo for grizzly # yum install -y http://rdo.fedorapeople.org/openstack/opensta... (more)

Cloud Computing Easily Understood - PaaS

In a previous post, I described Infrastructure as a Service (IaaS). In essence, if I use the service of an Infrastructure provider, who provides hardware: servers, networking, storage and firewalls, it is then incumbent upon me to install and maintain my own applications. However, I don't incur the capital and operating costs of maintaing the hardware and datacenters. To install and maintain web applications in an IaaS model, I typically need to: Install databases, web servers and application servers onto the (virtual) servers provided by the IaaS provider Write or purchase an ap... (more)

AWS - Amazon Web Services - for Newbies

This blog post is a summary of AWS (Amazon WebServices and is gleaned from Jeff Barr's webcast, here: http://youtu.be/CaJCmoGIW24). I will simply explain each box in the above picture, at a high level, and explore further in future blog posts as I delve further into AWS. (AWS is an abbreviation for Amazon Web Services) Amazon Global Physical Infrastructure AZ - Amazon zone - When you create an Amazon instance, you can select a region for your instance - USA, Eerope, AsiaPacific, Government/Federal. Separated zones - provided to allow for separate datacenters, power cooling and hig... (more)

Tutorial: Build a Private Cloud in Twenty Minutes

OpenStack is an open-source cloud framework for building on-demand Infrastructure as a Service. This tutorial in essence distills from this two-page set of instructions for setting up devstack on a single server primarily for use by developers. Hardware I used a DELL 1950 with 8 GB of RAM, internal hard-drives and two 1000 MB NICs. Download and Set Up Ubuntu Download Ubuntu 11.10 from here and burn to DVD Boot the server from the DVD and start the install. I installed the BASE SYSTEM and only one optional package, the OpenSSH Server. I named my server "ubuntu-server" I configured... (more)