A first-degree direct LinkedIn connection implies that the two parties know
Using this assumption, two unconnected LinkedIn users attempt to connect via
an intermediary. What often happens is that the first degree connections are
in fact very weak connections, and thus of no use to the third party
attempting to connect via the intermediary.
I log into LinkedIn and would like an introduction to Brent.
I view Brent's profile and notice that his first degree connection, Brian, is
also a first degree connection with me.
So I ask Brian for an introduction to Brent.
"I met Brent few years ago, at a conference, we exchanged business cards and
connected on LinkedIn. I don't know him well at all. He probably does not
remember me. Sorry, don't think the introduction would be of any use."
I suggest that LinkedIn mo... (more)
In this posting, I summarize my prior three posts on the three cloud
computing offerings: Infrastructure as a Service (IaaS), Platform as a
Service (PaaS) and Software as a Service (SaaS).
I concentrate how the three offerings differ with respect to flexibility,
maintenance and portability. One of the greatest challenges companies face
when moving to the cloud is security. Thus I will devote an entire blog post
in the future, to security concerns.
How much flexibility do you have with each offering? What can you change or
modify within each cloud offering to suit you... (more)
OpenStack is an Infrastructure as a Service offering. (see my prior post for
an explanation of IaaS).
OpenStack is an OpenSource project, founded by RackSpace, NASA and others.
OpenStack can be deployed as a public or private cloud.
The OpenStack projects are: CINDER, GLANCE, KEYSTONE, NOVA, QUANTUM, SWIFT.
OpenStack Compute: (NOVA)
Project NOVA, or OpenStack Compute, provisions and manages on-demand virtual
machines and associated resources: CPU, Memory, Disk and Network.
Virtual machines can be started, stopped, suspended, created and deleted,
while network options for a ... (more)
Eucalyptus is an open source Infrastructure as a Service cloud offering. What
is unique about Eucalyptus is that it is compatible with Amazon AWS APIs.
This means that you can:
Use Eucalyptus commands to manage Amazon or Eucalyptus instances. Freely move
instances between a Eucalyptus private cloud and the Amazon Public cloud to
create a hybrid cloud.
Eucalyptus leverages operating system virtualization, such as KVM or XEN, to
achieve isolation between applications and stacks. Operating system
virtualization dedicates CPU and RAM to systems and applications such that
they don't ... (more)
In prior blog posts, I described Infrastructure as a Service (IaaS) and
Platform as a Service (PaaS).
If I use IaaS I get servers onto which I can load software and applications
which I then maintain, though I don't need to maintain the hardware. I can
customize the applications and software running on the servers, at will. If I
use PaaS, I get a platform of ready to use web servers, application servers,
databases etc. I write my own software application and host it at the PaaS
provider. I maintain the software I write, but not the application servers,
databases or ha... (more)